{"title":"Prop Nuts, Washers \u0026 Spacers","description":null,"products":[{"product_id":"sierra-18-2110-power-trim-hose-small-diameter-1-8in-i-d-replaces-mercury-mariner-32-88005-32-45327-outboard-trim-system","title":"Sierra Tab Washer 18-2110, Small Diameter, Replaces Mercury 32-45327 32-88005 32-97153A1","description":"\u003cp\u003eThe Sierra 18-2110 is a small diameter tab washer used with trim tab hardware on applicable engines. It is a direct replacement for Mercury\/Mercruiser tab washers, cross-referencing to OEM numbers 32-45327, 32-88005, and 32-97153A1. Two washers are required per engine for a complete, proper installation, so buyers typically order in pairs to match the original hardware count.\u003c\/p\u003e\u003cp\u003eThis small diameter washer is a distinct part from the Sierra 18-2111, which is the large diameter version of the same washer design and carries its own separate OEM cross-references (32-88006, 32-45959, 32-97154A1). Ordering the correct diameter for your application ensures the tab washer seats and fits as intended, so confirm which size your original hardware uses before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Small Diameter Tab Washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Required:\u003c\/strong\u003e 2 required per engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999237057\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-45327, 32-88005, 32-97153A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32-45327\u003c\/li\u003e\n\u003cli\u003e32-88005\u003c\/li\u003e\n\u003cli\u003e32-97153A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2110 tab washer used for?\u003c\/strong\u003e It is a small diameter tab washer used with trim tab hardware, part number 18-2110, and is installed as a direct equivalent to the original Mercury\/Mercruiser washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many 18-2110 washers do I need per engine?\u003c\/strong\u003e Two of the Sierra 18-2110 tab washers are required per engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does Sierra 18-2110 replace?\u003c\/strong\u003e Sierra 18-2110 cross-references to Mercury\/Mercruiser numbers 32-45327, 32-88005, and 32-97153A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between 18-2110 and 18-2111?\u003c\/strong\u003e 18-2110 is the small diameter tab washer, while 18-2111 is the large diameter version of the same washer, replacing a different set of OEM numbers (32-88006, 32-45959, 32-97154A1). They are separate part numbers, so the correct diameter must be ordered for the application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2110 washer small or large diameter?\u003c\/strong\u003e The Sierra 18-2110 is the small diameter tab washer in this washer family; the large diameter counterpart is sold under part number 18-2111.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-2110 replace Mercury 32-88005?\u003c\/strong\u003e Yes, Mercury\/Mercruiser part 32-88005 is one of the numbers replaced by Sierra 18-2110.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-2110 replace 32-97153A1?\u003c\/strong\u003e Yes, 32-97153A1 is included among the OEM numbers that Sierra 18-2110 replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2110 tab washer weigh?\u003c\/strong\u003e The Sierra 18-2110 tab washer weighs 0.35 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre Sierra 18-2110 washers sold individually?\u003c\/strong\u003e Since 2 washers are required per engine, buyers should confirm quantity when ordering 18-2110 to match the required count for their installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is listed for the Sierra 18-2110?\u003c\/strong\u003e The UPC associated with Sierra 18-2110 is 030999237057.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988092039387,"sku":"SIE-18-2110","price":78.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2110_lg__16418.1558121413.500.750.jpg?v=1785188900"},{"product_id":"sierra-18-2380-9-stainless-steel-cotter-pin-pack-of-10-for-yamaha-f9-9-15-outboards-replaces-oem-91490-30030-00","title":"Sierra 18-2380-9 Cotter Pin, Pack of 10, Yamaha Outboard Prop Nut Hardware, Replaces 91490-30030-00","description":"\u003cp\u003eThe Sierra 18-2380-9 is a package of 10 cotter pins built to original equipment specifications for Yamaha outboard prop nut hardware. Cotter pins are a small but critical piece of outboard prop hardware: they lock the propeller nut in place on the prop shaft so vibration and water pressure cannot back it off, which protects the propeller from working loose or being lost during operation. Because they are a wear item that should be replaced (not reused) any time the propeller is removed for service, having a full pack of 10 on hand covers multiple prop changes or a season of routine maintenance across more than one boat.\u003c\/p\u003e\u003cp\u003eEach pin in this pack is finished in a grey tone and sized at 0.39 x 0.39 x 0.39 inches. The 18-2380-9 is manufactured to meet or exceed the original equipment part it replaces, making it a direct fit for the Yamaha prop nut hardware it is designed for.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2380-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Cotter Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 10 cotter pins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type:\u003c\/strong\u003e Cotter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Grey\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Yamaha outboard prop nut hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Yamaha outboard propeller nut hardware.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e91490-30030-00\u003c\/li\u003e\n\u003cli\u003e91401-30028-00\u003c\/li\u003e\n\u003cli\u003e91401-30030-00\u003c\/li\u003e\n\u003cli\u003e91402-30022-00\u003c\/li\u003e\n\u003cli\u003e91402-30022-09\u003c\/li\u003e\n\u003cli\u003e91402-30028-00\u003c\/li\u003e\n\u003cli\u003e91402-30028-09\u003c\/li\u003e\n\u003cli\u003e91490-30022-00\u003c\/li\u003e\n\u003cli\u003e91490-30025-00\u003c\/li\u003e\n\u003cli\u003eGLM 22090\u003c\/li\u003e\n\u003cli\u003eMallory 9-73911\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2380-9 cotter pin used for?\u003c\/strong\u003e It locks the propeller nut onto a Yamaha outboard prop shaft so vibration and water pressure cannot back the nut off, keeping the propeller securely in place during operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pins come in a pack of the 18-2380-9?\u003c\/strong\u003e Each package of the Sierra 18-2380-9 contains 10 cotter pins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size are the 18-2380-9 cotter pins?\u003c\/strong\u003e Each pin measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a pack of 18-2380-9 cotter pins weigh?\u003c\/strong\u003e A package of the Sierra 18-2380-9 weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-2380-9 cotter pin replace?\u003c\/strong\u003e Sierra 18-2380-9 replaces Yamaha 91490-30030-00, 91401-30028-00, 91401-30030-00, 91402-30022-00, 91402-30022-09, 91402-30028-00, 91402-30028-09, 91490-30022-00, and 91490-30025-00, as well as GLM 22090 and Mallory 9-73911.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2380-9 a genuine Yamaha part or aftermarket?\u003c\/strong\u003e It is an aftermarket cotter pin manufactured to meet or exceed the original equipment Yamaha part it replaces, rather than a Yamaha-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are these cotter pins?\u003c\/strong\u003e The 18-2380-9 cotter pins are finished in grey.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan cotter pins be reused after removing the prop nut?\u003c\/strong\u003e Cotter pins are a wear item meant to be replaced each time the propeller nut is removed, which is why the Sierra 18-2380-9 comes packaged in a set of 10 for repeated servicing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in a package of the Sierra 18-2380-9?\u003c\/strong\u003e The package includes 10 individual cotter pins sized for Yamaha outboard prop nut hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2380-9 fit any outboard brand's prop hardware?\u003c\/strong\u003e The Sierra 18-2380-9 is designed for Yamaha outboard prop nut hardware and cross-references specifically to Yamaha OEM cotter pin numbers.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988106096859,"sku":"SIE-18-2380-9","price":23.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2380-9__83323.1737878208.500.750.jpg?v=1785188754"},{"product_id":"sierra-18-3204-9-marine-tab-washer-replaces-mercury-14-76281-for-mercury-mariner-30-60-hp-outboards-pack-of-10","title":"Sierra 18-3204-9 Tab Washer, Replaces 14-76281, Fits Mercury\/Mariner 30-60 HP Non-Bigfoot Outboards, Pack of 10","description":"\u003cp\u003eThe Sierra 18-3204-9 is a tab washer designed for Mercury\/Mariner 30-60 hp (non-Bigfoot) outboard engines, sold in a pack of 10. A tab washer locks a fastener in place by bending one of its tabs against an adjacent flat or nut face, keeping the fastener from loosening under the vibration of normal outboard operation. This washer has a 1\/4 inch inside diameter, sized to fit the fastener bore it is designed for, and serves as a direct replacement for the original Mercury\/Mariner part.\u003c\/p\u003e\u003cp\u003eBecause a worn or missing tab washer can allow a critical fastener to back out over time, replacing it with the correct part is a routine but important part of outboard maintenance. The 18-3204-9 pack supplies ten washers, giving an installer enough on hand for a full service job or several repairs without needing to reorder individual pieces. Each washer is manufactured by Sierra and backed by Sierra's customer satisfaction warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3204-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282164515\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 14-76281\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercury\/Mariner 30-60 hp (non-Bigfoot) outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 10 washers per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 4 x 1 x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eMercury\/Mariner 30-60 hp outboard engines (non-Bigfoot models).\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003e14-76281\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-3204-9 tab washer replace?\u003c\/strong\u003e It replaces Mercury\/Mariner part number 14-76281, so it is a direct swap for that original tab washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does this tab washer fit?\u003c\/strong\u003e Mercury\/Mariner 30-60 hp outboard engines that are non-Bigfoot models are the intended fit for the Sierra 18-3204-9 tab washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many washers are in one pack?\u003c\/strong\u003e Ten tab washers ship in every Sierra 18-3204-9 pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of the washer?\u003c\/strong\u003e 1\/4 inch is the inside diameter of the Sierra 18-3204-9 tab washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a pack weigh?\u003c\/strong\u003e 0.08 pounds is the total weight of the ten-washer Sierra 18-3204-9 pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions?\u003c\/strong\u003e The Sierra 18-3204-9 pack measures 4 x 1 x 5 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or a generic aftermarket washer?\u003c\/strong\u003e Sierra manufactures the 18-3204-9 as its own branded replacement part, not a generic no-name washer, and it is built to replace Mercury\/Mariner 14-76281 directly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this washer fit a Bigfoot model outboard?\u003c\/strong\u003e No, the Sierra 18-3204-9 is intended for non-Bigfoot Mercury\/Mariner 30-60 hp outboards, not Bigfoot models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a tab washer actually do?\u003c\/strong\u003e A tab washer has a bendable tab that locks against an adjacent nut or flat surface to keep a fastener from loosening under vibration, which is the function of the 18-3204-9 on Mercury\/Mariner 30-60 hp outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a warranty on this part?\u003c\/strong\u003e Yes, the Sierra 18-3204-9 tab washer is covered under Sierra's customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e Ordering the Sierra 18-3204-9 gets you a pack of 10 tab washers only, with no additional hardware included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does buying the 18-3204-9 pack compare to buying individual OEM washers?\u003c\/strong\u003e The 18-3204-9 bundles 10 tab washers that replace Mercury\/Mariner 14-76281 into a single pack, which is more economical than sourcing individual OEM washers one at a time.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988141158619,"sku":"SIE-18-3204-9","price":15.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3204-9__16857.1722346113.500.750.jpg?v=1785188131"},{"product_id":"sierra-18-3200-9-prop-nut-tab-washer-for-honda-75-90-hp-outboards-pack-of-10-replaces-oem-90508-zw1-003","title":"Sierra Tab Washer 18-3200-9, Pack of 10, Replaces Mercury 14-31210 and Honda 90508, Fits 150 HP Outboards 1990 and 1991","description":"\u003cp\u003eThe Sierra 18-3200-9 tab washer is sold in a pack of 10, providing a ready supply of the flat tab washers used to lock propeller nuts in place on outboard motor drive shafts. Each washer is made from alloy and carbon steel and finished in gold, matching the specification of the original equipment hardware it is designed to replace. The tabbed design bends up against a flat on the prop nut to prevent the nut from backing off under vibration and load, making it a routine wear item to replace any time a propeller is removed or serviced.\u003c\/p\u003e\u003cp\u003eThis tab washer is intended for 150 HP outboard applications covering the 1990 model years B, C, and D and the 1991 model year (all variants). It corresponds to the OEM tab washer specification used across these applications and is a common companion part when installing a new propeller, servicing the prop shaft, or replacing hardware that has been bent or worn from prior tab-washer use.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3200-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 10 washers per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWasher Type:\u003c\/strong\u003e Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Type:\u003c\/strong\u003e Alloy Steel, Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\/Color:\u003c\/strong\u003e Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 4 x 4 x 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 5.0 x 4.6 x 0.7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.19 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282164508\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e150 HP outboard, 1990 model years B, C, D\u003c\/li\u003e\n\u003cli\u003e150 HP outboard, 1991 model year, all variants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mercruiser 14-31210\u003c\/li\u003e\n\u003cli\u003eMercury\/Mercruiser 14-816629\u003c\/li\u003e\n\u003cli\u003eHonda 90508\u003c\/li\u003e\n\u003cli\u003eZWI.003\u003c\/li\u003e\n\u003cli\u003ePleasurecraft RO96117\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow many washers come in the Sierra 18-3200-9 pack?\u003c\/strong\u003e The 18-3200-9 pack contains 10 flat tab washers, sold together as one unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the 18-3200-9 tab washer fit?\u003c\/strong\u003e This tab washer fits 150 HP outboards from the 1990 model years B, C, and D, as well as the 1991 model year across all variants.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does 18-3200-9 replace?\u003c\/strong\u003e It replaces Mercury\/Mercruiser 14-31210 and 14-816629, Honda 90508, ZWI.003, and Pleasurecraft RO96117, so any of those original part numbers can be cross-referenced to the Sierra 18-3200-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the tab washer made from?\u003c\/strong\u003e Each washer in the 18-3200-9 pack is made from alloy and carbon steel with a gold finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is each tab washer?\u003c\/strong\u003e The item dimensions for the 18-3200-9 washer set are 4 x 4 x 1.5 inches, packaged in a box measuring 5.0 x 4.6 x 0.7 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a pack of 18-3200-9 washers weigh?\u003c\/strong\u003e A pack of 10 Sierra 18-3200-9 tab washers weighs 0.19 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen do I need to replace a tab washer like this one?\u003c\/strong\u003e Tab washers such as the 18-3200-9 should be replaced any time the propeller nut is removed for prop service or replacement, since the bent locking tab is a one-time-use feature.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3200-9 washer genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-3200-9 is a Sierra-branded tab washer manufactured to the OEM specification of the Mercury, Honda, and Pleasurecraft part numbers it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3200-9?\u003c\/strong\u003e Ordering the Sierra 18-3200-9 gets you one pack of 10 flat tab washers; no other hardware is included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3200-9 fit outboards other than 150 HP models from 1990 and 1991?\u003c\/strong\u003e The stated fitment for the 18-3200-9 tab washer covers 150 HP outboards in the 1990 (B, C, D) and 1991 (ALL) model years; other applications are not specified.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988141256923,"sku":"SIE-18-3200-9","price":63.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3200-9__58758.1737830418.500.750.jpg?v=1785188954"},{"product_id":"prop-nut-for-force-90-hp-outboards-replaces-mercury-11-52707-sierra-18-3700-brass-propeller-nut","title":"Sierra Prop Nut 18-3700, Brass, Replaces Mercury Marine 11-52707, Fits Force Outboard 120, 125 \u0026 150 HP","description":"\u003cp\u003eThe Sierra 18-3700 is a brass propeller nut engineered as a direct replacement for the original hardware on select Force outboard motors. It secures the propeller onto the propeller shaft, providing the clamping force needed to keep the prop seated correctly during operation. The nut is finished in white and machined from brass, a material chosen for its corrosion resistance in marine environments where saltwater and freshwater exposure quickly degrade lower-grade fasteners.\u003c\/p\u003e\u003cp\u003eThis part carries a 1\/2 inch thread with Unified National Coarse (UNC) threading, a right-hand, fully-threaded design, and a hexagonal head for use with a standard socket or wrench. It is built to the same specification as the original equipment nut it replaces, so no modification is required for installation. The 18-3700 is commonly stocked alongside the 18-3200 and 18-3701 for technicians servicing a range of Force outboard horsepower classes and model years.\u003c\/p\u003e\u003cp\u003eFitment covers Force outboard motors rated 120, 125, and 150 horsepower across the specific model years and drive\/model variants listed below. Always confirm your outboard's horsepower, year, and model letter against the fitment table before ordering to ensure correct fit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3700\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Hexagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 4 x 1 x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999236944\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eForce outboard, 120 HP, 1991, All models\u003c\/li\u003e\n\u003cli\u003eForce outboard, 120 HP, L-Drive, 1990, All models\u003c\/li\u003e\n\u003cli\u003eForce outboard, 120 HP, L-Drive, 1991, models B, D\u003c\/li\u003e\n\u003cli\u003eForce outboard, 125 HP, L-Drive, 1989, All models\u003c\/li\u003e\n\u003cli\u003eForce outboard, 150 HP, 1989, All models\u003c\/li\u003e\n\u003cli\u003eForce outboard, 150 HP, 1990, model A\u003c\/li\u003e\n\u003cli\u003eForce outboard, 150 HP, 1990, models B, C, D\u003c\/li\u003e\n\u003cli\u003eForce outboard, 150 HP, 1991, All models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 11-52707\u003c\/li\u003e\n\u003cli\u003eMercury Marine 11-52707Q1\u003c\/li\u003e\n\u003cli\u003ePleasurecraft R017066\u003c\/li\u003e\n\u003cli\u003eChrysler Force F7000\u003c\/li\u003e\n\u003cli\u003eHonda 90301-ZW1-003\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3700 prop nut fit?\u003c\/strong\u003e The Sierra 18-3700 fits Force outboard motors rated 120, 125, and 150 horsepower, across the specific model years and model-letter variants listed in the fitment table, including L-Drive versions of the 120 HP and 125 HP models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3700 a direct OEM replacement?\u003c\/strong\u003e Yes, this brass prop nut is built to replace the original equipment nut on covered Force outboards without modification, matching the original thread size and fastening design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-3700 cross-reference?\u003c\/strong\u003e The 18-3700 replaces Mercury Marine 11-52707 and 11-52707Q1, Pleasurecraft R017066, Chrysler Force F7000, and Honda 90301-ZW1-003.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the prop nut made from?\u003c\/strong\u003e Brass, machined and finished in white, which resists corrosion in both saltwater and freshwater use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-3700 use?\u003c\/strong\u003e It has a 1\/2 inch Unified National Coarse (UNC) thread, right-hand, fully threaded, with a hexagonal head for a standard wrench or socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3700 prop nut weigh?\u003c\/strong\u003e The Sierra 18-3700 weighs 0.13 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3700 fit my Force outboard if it's a different model letter?\u003c\/strong\u003e Fitment depends on the exact horsepower, year, and model letter of your Force outboard; the 18-3700 covers specific combinations such as 120 HP 1991 all models, 150 HP 1990 models B, C, D, and others listed in the fitment table, so confirm your motor's specs against that list.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-3700 and the 18-3200 or 18-3701?\u003c\/strong\u003e 18-3200, 18-3700, and 18-3701 are separate Sierra part numbers that are often listed together for the same Force outboard applications, but 18-3700 is a distinct part number and must be matched to your motor's specific fitment row rather than substituted automatically.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3700?\u003c\/strong\u003e The order includes one Sierra 18-3700 brass propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3700 genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-3700 is a Sierra-brand part manufactured as a replacement for the original Force outboard hardware, sold under the Sierra part number 18-3700.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-3700 prop nut?\u003c\/strong\u003e It has a white finish over the machined brass body.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162064603,"sku":"SIE-18-3700","price":12.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3700_lg__88628.1558125534.500.750.jpg?v=1785188952"},{"product_id":"sierra-18-3701-prop-nut-kit-for-mercury-mariner-75hp-outboards-mercruiser-alpha-one-bravo-replaces-11-52707a1","title":"Sierra 18-3701 Prop Nut Kit, Replaces Mercury\/Mercruiser 11-52707A1, 11-52707Q1, Fits 150 HP Outboards","description":"\u003cp\u003eThe Sierra 18-3701 Prop Nut Kit is a replacement propeller nut kit built to secure the propeller assembly on compatible 150 HP outboards. The kit provides the prop nut and tab washer needed to properly torque and lock the propeller in place on the propeller shaft, restoring a secure, vibration-resistant fit after servicing or replacing a propeller. It is manufactured from alloy steel with a machined finish and zinc plating for corrosion resistance in the marine environment.\u003c\/p\u003e\u003cp\u003eThis kit directly replaces Mercury\/Mercruiser part numbers 11-52707A1 and 11-52707Q1, making it a straightforward drop-in replacement when the original prop nut or tab washer is worn, corroded, or lost during a propeller change. Sierra 18-3701 is confirmed for 150 HP applications for the 1990 model year (B, C, D models) and the 1991 model year (all models). Always confirm the part number stamped on your existing hardware or consult your engine's serial number range before ordering to ensure correct fitment.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3701\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined, Zinc Plated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.19 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999256195\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 11-52707A1, 11-52707Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e150 HP, 1990 model year, B, C, D models\u003c\/li\u003e\n\u003cli\u003e150 HP, 1991 model year, all models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mercruiser 11-52707A1\u003c\/li\u003e\n\u003cli\u003eMercury\/Mercruiser 11-52707Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3701 Prop Nut Kit include?\u003c\/strong\u003e The Sierra 18-3701 kit includes the prop nut and tab washer needed to secure a compatible propeller onto the propeller shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-3701 replace?\u003c\/strong\u003e It replaces Mercury\/Mercruiser part numbers 11-52707A1 and 11-52707Q1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does Sierra 18-3701 fit?\u003c\/strong\u003e It fits 150 HP applications for the 1990 model year (B, C, D models) and the 1991 model year (all models).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3701 prop nut kit made from?\u003c\/strong\u003e The kit is made from alloy steel with a machined finish and zinc plating for corrosion resistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size on the Sierra 18-3701 prop nut?\u003c\/strong\u003e The Sierra 18-3701 prop nut uses a 1\/2 inch thread size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3701 Prop Nut Kit weigh?\u003c\/strong\u003e The kit weighs 0.19 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3701 a genuine OEM part or aftermarket?\u003c\/strong\u003e Sierra 18-3701 is an aftermarket replacement kit manufactured to replace Mercury\/Mercruiser OEM parts 11-52707A1 and 11-52707Q1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace the tab washer every time I remove the propeller?\u003c\/strong\u003e The Sierra 18-3701 kit includes a tab washer along with the prop nut so both wear items are available together when servicing the propeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many prop nuts and washers come in one 18-3701 kit?\u003c\/strong\u003e One 18-3701 kit contains a single set: one prop nut and one tab washer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill Sierra 18-3701 fit engines outside the listed 1990 and 1991 model years?\u003c\/strong\u003e Fitment for the 18-3701 is confirmed for 150 HP, 1990 (B, C, D models) and 1991 (all models); confirm your engine's model and serial number before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162130139,"sku":"SIE-18-3701","price":21.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3701_lg__81553.1558125612.500.750.jpg?v=1785188092"},{"product_id":"prop-nut-for-mercury-9-9-25-hp-1986-up-replaces-11-88228-sierra-18-3703","title":"Sierra Prop Nut 18-3703, Replaces 11-88228, Fits 9.9-25 HP Outboard Motors 1986-Up","description":"\u003cp\u003eThe Sierra 18-3703 Prop Nut is a machined aluminum propeller nut built to secure the propeller onto the prop shaft on 9.9-25 HP outboard motors, 1986 and up. It is manufactured to meet or exceed the quality of the original equipment part it replaces, giving boat owners a dependable, exact-fit hardware option when servicing the lower unit or swapping a propeller.\u003c\/p\u003e\u003cp\u003eThe nut uses a 3\/8 inch - 16 UNC thread with a Class 2B thread fit and a fully threaded, flat-style design, finished in a machined silver appearance. Its compact, lightweight construction (0.02 pounds) makes it an easy, low-cost keep-on-hand spare for anyone who regularly removes or reinstalls a propeller.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3703\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 3\/8 inch - 16 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Class 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Groove Diameter:\u003c\/strong\u003e 0.38 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282111953\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e9.9-25 HP outboard motors, 1986-Up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e11-88228\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3703 prop nut fit?\u003c\/strong\u003e The Sierra 18-3703 prop nut fits 9.9-25 HP outboard motors, 1986 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3703 a direct replacement for OEM part 11-88228?\u003c\/strong\u003e Yes, the 18-3703 replaces OEM part number 11-88228 and is manufactured to meet or exceed the original equipment part's quality.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3703 prop nut made from?\u003c\/strong\u003e It is made from aluminum with a machined silver finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-3703 use?\u003c\/strong\u003e The 18-3703 prop nut has a 3\/8 inch - 16 UNC thread with a Class 2B thread fit and is fully threaded.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3703 prop nut weigh?\u003c\/strong\u003e The Sierra 18-3703 prop nut weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-3703 is a genuine Sierra-manufactured prop nut, built to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box when I order the 18-3703?\u003c\/strong\u003e You receive one Sierra 18-3703 prop nut; no additional hardware or cotter pins are included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-3703 differ from the Sierra 18-3704 prop nut?\u003c\/strong\u003e The 18-3703 replaces OEM number 11-88228 for 9.9-25 HP outboards 1986-Up, while the 18-3704 is a separate part number that replaces a different OEM number, 11-69578, so the two are not interchangeable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the compatible groove diameter on the 18-3703 prop nut?\u003c\/strong\u003e The Sierra 18-3703 prop nut has a compatible groove diameter of 0.38 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3703 prop nut?\u003c\/strong\u003e The UPC for the Sierra 18-3703 prop nut is 808282111953.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162162907,"sku":"SIE-18-3703","price":5.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3703_lg__03764.1558125746.500.750.jpg?v=1785188687"},{"product_id":"lock-nut-drive-gear-to-u-joint-for-mercruiser-sterndrive-replaces-mercury-11-22339-sierra-18-3713","title":"Sierra Lock Nut 5\/8\"-18, Stainless Steel, Replaces Mercury Marine 11-22339","description":"\u003cp\u003eThis Sierra lock nut, part number 18-3713, is a stainless steel fastener sized 5\/8\"-18 with a Unified National Coarse (UNC) thread, right-hand thread direction, and full thread coverage. It is built with a flange screw head style and a machined finish in black, giving it a corrosion-resistant, durable surface suited to marine environments where saltwater exposure and vibration are common concerns. As a lock nut, its primary function is to stay securely fastened under vibration and load, making it well suited for gearcase and drive component assembly where a fastener backing off could lead to a loose or failed connection. It is used in Mercruiser gearcase and drive applications and is a direct equivalent for Mercury Marine part number 11-22339, allowing it to be installed as a replacement for that OEM part. The stainless steel construction resists rust and corrosion better than standard plated steel hardware, which is important for any fastener used below the waterline or in a wet engine compartment. Each lock nut ships as a single piece for straightforward one-for-one replacement during service or rebuild work.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3713\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Lock Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 5\/8 inch - 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUsed in Mercruiser gearcase and drive applications.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 11-22339\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size on the Sierra 18-3713 lock nut?\u003c\/strong\u003e The Sierra 18-3713 lock nut has a 5\/8 inch - 18 thread size with a Unified National Coarse (UNC), right-hand thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this lock nut cross-reference to a Mercury Marine part number?\u003c\/strong\u003e Yes, Sierra 18-3713 is the equivalent to Mercury Marine part number 11-22339.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3713 lock nut made from?\u003c\/strong\u003e It is made from stainless steel with a machined finish in black, which resists corrosion in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does this part get used for?\u003c\/strong\u003e The 18-3713 lock nut is used in Mercruiser gearcase and drive component assemblies to keep fasteners secure under vibration and load.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many lock nuts come in a package?\u003c\/strong\u003e The Sierra 18-3713 lock nut is sold as a single piece, one nut per unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3713 a full-thread or partial-thread nut?\u003c\/strong\u003e It is fully threaded along its entire length, with a coarse UNC thread class.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat style of head does this lock nut have?\u003c\/strong\u003e The 18-3713 uses a flange screw head style, which provides a wider bearing surface than a standard hex nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e Sierra 18-3713 is a Sierra-branded part manufactured to equal or exceed OEM specifications, offered as a replacement for Mercury Marine 11-22339.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3713 lock nut weigh?\u003c\/strong\u003e The Sierra 18-3713 lock nut weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this lock nut to replace a worn or damaged OEM nut on my gearcase?\u003c\/strong\u003e Yes, Sierra 18-3713 is designed as a direct replacement for Mercury Marine 11-22339 in gearcase and drive applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162195675,"sku":"SIE-18-3713","price":5.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3713_lg__25482.1558126447.500.750.jpg?v=1785189053"},{"product_id":"prop-nut-kit-for-mercury-mariner-outboards-replaces-11-69578a1-sierra-18-3702-prop-nut-tab-washer","title":"Sierra Prop Nut Kit 18-3702, Replaces Mercury 11-69578A1, for Mercury\/Mariner Outboard Motors","description":"\u003cp\u003eThe Sierra 18-3702 Prop Nut Kit is a replacement hardware kit for Mercury and Mariner outboard motors, designed to secure the propeller onto the propeller shaft. The kit is built from alloy steel with a machined finish and uses a hexagonal, external-hex drive style with a coarse, right-hand M14 metric thread, giving it a commercial grade rating suited to marine propeller hardware. Each component measures 0.39 x 0.39 x 0.39 inches and the complete kit weighs 0.12 pounds.\u003c\/p\u003e\u003cp\u003eThe kit contains the two pieces needed to reinstall a propeller correctly: a tab washer (Sierra 18-3204) and a prop nut (Sierra 18-3704). These components replace the original Mercury tab washer and prop nut, so boaters can restore the propeller mounting hardware to factory function without sourcing individual dealer parts separately. Because the nut and washer are matched to the correct thread size and profile, the kit helps prevent under- or over-torquing that can occur when mismatched hardware is used.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Iso Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Style:\u003c\/strong\u003e External Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Hexagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Rating:\u003c\/strong\u003e Commercial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.12 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999256201\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Tab Washer (Sierra 18-3204), Prop Nut (Sierra 18-3704)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Mercury and Mariner outboard motors.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 11-69578A1\u003c\/li\u003e\n\u003cli\u003eMercury Marine 11-69578T1\u003c\/li\u003e\n\u003cli\u003eMercury Marine 11-69578Q1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3702 Prop Nut Kit include?\u003c\/strong\u003e The kit includes a tab washer (Sierra 18-3204) and a prop nut (Sierra 18-3704), the two pieces needed to secure a propeller onto the shaft of a Mercury or Mariner outboard motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Mercury part numbers does the 18-3702 kit replace?\u003c\/strong\u003e Sierra 18-3702 replaces Mercury 11-69578A1, 11-69578T1, and 11-69578Q1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3702 an OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra aftermarket replacement kit engineered to replace the original Mercury 11-69578A1, 11-69578T1, and 11-69578Q1 prop nut hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboard motors is this prop nut kit for?\u003c\/strong\u003e This kit is made for Mercury and Mariner outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3702 prop nut kit made from?\u003c\/strong\u003e Both the prop nut and tab washer are made from alloy steel with a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the Sierra 18-3702 prop nut use?\u003c\/strong\u003e The prop nut uses an M14 thread with a coarse, right-hand, ISO metric thread type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3702 Prop Nut Kit weigh?\u003c\/strong\u003e The complete kit weighs 0.12 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the components in kit 18-3702?\u003c\/strong\u003e Each component in the Sierra 18-3702 kit measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pieces come in the Sierra 18-3702 kit?\u003c\/strong\u003e The Sierra 18-3702 Prop Nut Kit contains 4 pieces total.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the prop nut have a hex drive?\u003c\/strong\u003e Yes, the Sierra 18-3702 prop nut uses a hexagonal head with an external hex drive style.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3702 Prop Nut Kit?\u003c\/strong\u003e The UPC for the Sierra 18-3702 Prop Nut Kit is 030999256201.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace both the tab washer and prop nut together?\u003c\/strong\u003e Because the Sierra 18-3702 kit pairs the tab washer (18-3204) and prop nut (18-3704) together, boaters get matched replacement hardware sized correctly to the original Mercury 11-69578 series parts rather than sourcing each piece separately.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162228443,"sku":"SIE-18-3702","price":12.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3702_lg__21458.1558125680.500.750.jpg?v=1785189019"},{"product_id":"brass-spline-washer-for-mercury-prop-hardware-replaces-12-31211a2-sierra-18-3714","title":"Sierra Brass Castle Washer 18-3714, Replaces Mercury 12-31211A2, Fits 135-275 HP V6 2-Cycle Outboards","description":"\u003cp\u003eThe Sierra 18-3714 is a brass castle washer used on outboard propeller hardware. A castle washer is designed to work with a cotter pin to lock the propeller nut securely in place, preventing the nut from backing off during operation. Built from brass, it resists corrosion in the marine environment better than uncoated steel hardware, making it a reliable choice for maintaining a secure and dependable propeller assembly.\u003c\/p\u003e\u003cp\u003eThis washer is intended for outboards rated 135-275 HP with V6 2 cycle engines. It directly replaces several Mercury Marine OEM part numbers, so it can be used as a drop-in service or replacement part when rebuilding or servicing the propeller hub assembly. Keeping this hardware in good condition is a simple, low-cost way to avoid a lost or loosening propeller nut.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3714\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Brass Castle Washer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 135-275 HP (V6 2 cycle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.28 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999755902\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 12-31211A2, 12-31211, 12-31211A3, 12-31211Q03\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e135-275 HP (V6 2 cycle) outboards\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e12-31211A2\u003c\/li\u003e\n\u003cli\u003e12-31211\u003c\/li\u003e\n\u003cli\u003e12-31211A3\u003c\/li\u003e\n\u003cli\u003e12-31211Q03\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-3714 castle washer used for?\u003c\/strong\u003e The Sierra 18-3714 is a brass castle washer used on outboard propeller hardware; it seats against the propeller nut and is paired with a cotter pin to keep the nut from loosening during operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboards does the 18-3714 castle washer fit?\u003c\/strong\u003e This washer is fitted for outboards rated 135-275 HP with V6 2 cycle engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-3714 washer replace?\u003c\/strong\u003e It replaces Mercury OEM numbers 12-31211A2, 12-31211, 12-31211A3, and 12-31211Q03.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3714 washer made of brass or steel?\u003c\/strong\u003e It is made of brass, chosen for its corrosion resistance in marine environments compared to uncoated steel hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3714 castle washer weigh?\u003c\/strong\u003e The Sierra 18-3714 brass castle washer weighs 0.28 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a cotter pin with the 18-3714 castle washer?\u003c\/strong\u003e Yes, a castle washer like the 18-3714 is designed to be used with a cotter pin passed through the slots to lock the propeller nut in place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3714 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-3714 is a Sierra-branded replacement part manufactured to replace the listed Mercury OEM castle washers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3714 castle washer?\u003c\/strong\u003e The UPC for the Sierra 18-3714 brass castle washer is 030999755902.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-3714 washer be used on any outboard propeller?\u003c\/strong\u003e The 18-3714 castle washer is intended for 135-275 HP V6 2 cycle outboards and the specific Mercury hub hardware it cross-references; it should be matched to that fitment before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3714 come as a single washer or multiple?\u003c\/strong\u003e The Sierra 18-3714 brass castle washer is supplied as an individual replacement washer.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162326747,"sku":"SIE-18-3714","price":9.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3714_lg__34480.1558126527.500.750.jpg?v=1785188275"},{"product_id":"sierra-18-3716-prop-nut-kit-for-johnson-evinrude-outboards-replaces-omc-175267-prop-nut-cotter-pin-spacer","title":"Sierra Prop Nut Kit 18-3716, Replaces OMC 175267, for Johnson\/Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-3716 Prop Nut Kit is a three-piece hardware set for securing the propeller on Johnson\/Evinrude outboard motors. It bundles the prop nut, cotter pin, and prop spacer needed for a complete prop nut replacement in one package, so there is no need to source each fastener separately. The kit is built from metal components with a machined finish and a #4 thread in a Unified National Coarse (UNC), right-hand thread pattern rated to an industrial grade standard.\u003c\/p\u003e\u003cp\u003eThis kit replaces OMC 175267 and is intended as a direct hardware replacement where that part number is called for. Each component in the kit corresponds to its own OEM number: the prop nut (Sierra 18-3705) replaces O.E. 314503, the cotter pin (Sierra 18-3742) replaces O.E. 314502, and the prop spacer (Sierra 18-4228) replaces O.E. 315810. Keeping these three parts matched as a set helps ensure the propeller is retained correctly and the cotter pin locks the nut in place as designed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3716\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Prop Nut (18-3705), Cotter Pin (18-3742), Prop Spacer (18-4228)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e #4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999316370\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Johnson\/Evinrude outboard motors.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e175267\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3716 Prop Nut Kit include?\u003c\/strong\u003e The kit contains three parts: a prop nut (Sierra 18-3705), a cotter pin (Sierra 18-3742), and a prop spacer (Sierra 18-4228), giving you the complete hardware set needed to mount and secure a propeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-3716 kit replace?\u003c\/strong\u003e It replaces OMC 175267, so it is a direct swap wherever that OEM prop nut kit number is specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this prop nut kit made of metal?\u003c\/strong\u003e Yes, all three components in the Sierra 18-3716 kit are metal with a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the Sierra 18-3716 prop nut use?\u003c\/strong\u003e The nut uses a #4 thread in a Unified National Coarse (UNC), right-hand thread pattern with a coarse thread class.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat motors is the 18-3716 Prop Nut Kit designed for?\u003c\/strong\u003e This kit is designed for Johnson\/Evinrude outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3716 kit weigh?\u003c\/strong\u003e The complete three-piece kit weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to buy the prop nut, cotter pin, and spacer separately?\u003c\/strong\u003e No, Sierra part number 18-3716 bundles the prop nut, cotter pin, and prop spacer together as one kit, so all three pieces arrive in a single package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-3716 Prop Nut Kit?\u003c\/strong\u003e The kit is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the individual OEM cross-reference numbers for the parts inside the kit?\u003c\/strong\u003e Within the 18-3716 kit, the prop nut (18-3705) replaces O.E. 314503, the cotter pin (18-3742) replaces O.E. 314502, and the prop spacer (18-4228) replaces O.E. 315810.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-3716 prop nut kit hardware?\u003c\/strong\u003e Each piece in the kit measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the cotter pin included with the 18-3716 kit reusable?\u003c\/strong\u003e A new cotter pin (Sierra 18-3742) is included with every 18-3716 kit, so you have a fresh pin rather than needing to reuse the old one when replacing the prop nut assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3716 kit come with installation instructions?\u003c\/strong\u003e The dossier for the Sierra 18-3716 Prop Nut Kit does not specify included instructions; the kit provides the prop nut, cotter pin, and prop spacer hardware only.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162425051,"sku":"SIE-18-3716","price":11.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3716_lg__67837.1558126661.500.750.jpg?v=1785188257"},{"product_id":"sierra-18-3715-prop-nut-kit-for-johnson-evinrude-replaces-oem-175266-prop-nut-keeper-cotter-pin-prop-spacer","title":"Sierra Prop Nut Kit 18-3715 - Replaces Johnson\/Evinrude 175266","description":"\u003cp\u003eThe Sierra 18-3715 Prop Nut Kit is a complete hardware set for securing the propeller on Johnson and Evinrude outboard motors. The kit is built around a brass prop nut and keeper, paired with a cotter pin and a prop spacer, giving you every fastener needed to reinstall or replace worn propeller hardware in one package. The prop nut and keeper are machined brass with an internal #4 UNC thread, finished for corrosion resistance in a marine environment, while the cotter pin locks the nut in place so it cannot back off during operation. Sierra part number 18-3715 directly replaces OEM number 175266, so it drops into the same application without modification.\u003c\/p\u003e\u003cp\u003eThis kit is sized as a small hardware set, making it an easy on-hand spare for seasonal prop changes, storage prep, or replacing hardware lost or damaged during a prop strike. Because it includes the nut, keeper, cotter pin, and spacer together, there is no need to source each piece individually or guess at compatible sizing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3715\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Thread Size:\u003c\/strong\u003e #4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Internal, #4, Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.44 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Prop Nut\/Keeper (18-3708-1), Cotter Pin (18-3741), Prop Spacer (18-4231)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude outboard motor\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e175266\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3715 prop nut kit include?\u003c\/strong\u003e The kit contains a brass prop nut with keeper (18-3708-1), a cotter pin (18-3741), and a prop spacer (18-4231), giving you the complete set of hardware needed to mount a propeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-3715 replace?\u003c\/strong\u003e Sierra 18-3715 replaces OEM number 175266 on Johnson\/Evinrude outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is this prop nut kit designed for?\u003c\/strong\u003e This kit is designed for Johnson and Evinrude outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the prop nut made from?\u003c\/strong\u003e The prop nut and keeper in kit 18-3715 are machined brass.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-3715 prop nut use?\u003c\/strong\u003e The prop nut has a 1\/4 inch thread with an internal #4 Unified National Coarse (UNC) thread, right hand style.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a cotter pin included with this kit?\u003c\/strong\u003e Yes, the Sierra 18-3715 kit includes cotter pin 18-3741 to lock the prop nut in place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3715 prop nut kit weigh?\u003c\/strong\u003e The complete kit weighs 0.44 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the prop nut kit?\u003c\/strong\u003e The Sierra 18-3715 prop nut kit has a white finish on the packaging\/nut components as listed by the manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this kit include a prop spacer?\u003c\/strong\u003e Yes, prop spacer 18-4231 is included along with the prop nut, keeper, and cotter pin in kit 18-3715.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-3715 a genuine aftermarket replacement or OEM part?\u003c\/strong\u003e Sierra 18-3715 is an aftermarket replacement kit engineered to replace OEM number 175266 on Johnson\/Evinrude outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the individual components in the kit?\u003c\/strong\u003e Individual hardware pieces in the 18-3715 kit measure approximately 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162457819,"sku":"SIE-18-3715","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3715_lg__07686.1558126596.500.750.jpg?v=1785188064"},{"product_id":"sierra-18-3717-prop-nut-kit-for-johnson-evinrude-outboard-replaces-omc-175268-prop-nut-cotter-pin-spacer","title":"Sierra 18-3717 Prop Nut Kit, Replaces OMC 175268, for Johnson\/Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-3717 Prop Nut Kit is a complete propeller hardware set for Johnson\/Evinrude (OMC\/BRP) outboard drive systems. It supplies the three components needed to properly secure a propeller to the prop shaft: a prop nut, a cotter pin, and a prop spacer. Each part in the kit meets or exceeds original equipment quality, so it installs and functions like the factory hardware it replaces.\u003c\/p\u003e\u003cp\u003eThe kit directly replaces OMC part number 175268, and each individual component cross-references to its own OMC part number, making it straightforward to confirm fitment against your outboard's existing hardware. The prop nut and spacer are metal with a machined finish, built to handle the repeated torque and vibration loads of propeller hardware. The cotter pin locks the prop nut in place to keep the propeller from backing off the shaft during operation.\u003c\/p\u003e\u003cp\u003eThis kit is intended for boat owners and technicians replacing worn, corroded, or lost propeller hardware, or servicing a propeller during routine maintenance. Because it bundles all three parts together, it saves the step of sourcing the nut, pin, and spacer separately.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3717\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Prop Nut (18-3707, O.E. 319891), Cotter Pin (18-3743, O.E. 320785), Prop Spacer (18-4232, O.E. 323943)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999316387\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOutboard - Johnson\/Evinrude (OMC\/BRP) drive systems\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 175268\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3717 Prop Nut Kit include?\u003c\/strong\u003e The kit contains a prop nut, a cotter pin, and a prop spacer, the three components needed to mount and secure a propeller on a Johnson\/Evinrude outboard prop shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-3717 kit replace?\u003c\/strong\u003e It replaces OMC part number 175268. Sierra part 18-3717 is the direct aftermarket equivalent.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the individual prop nut's part number?\u003c\/strong\u003e The prop nut included in kit 18-3717 is Sierra part 18-3707, which corresponds to OMC\/O.E. Number 319891.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the cotter pin's part number in this kit?\u003c\/strong\u003e The cotter pin is Sierra part 18-3743, corresponding to OMC\/O.E. Number 320785.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the prop spacer's part number in this kit?\u003c\/strong\u003e The prop spacer is Sierra part 18-4232, corresponding to OMC\/O.E. Number 323943.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-3717 prop nut kit made of?\u003c\/strong\u003e The prop nut and spacer are metal with a machined finish, designed to withstand the torque and vibration loads a propeller places on the prop shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3717 kit genuine OEM or aftermarket?\u003c\/strong\u003e It is a Sierra aftermarket kit manufactured to meet or exceed original equipment quality, sold as a direct replacement for OMC 175268.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3717 Prop Nut Kit weigh?\u003c\/strong\u003e The complete kit weighs 0.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboards is the 18-3717 Prop Nut Kit designed for?\u003c\/strong\u003e It is designed for the Johnson\/Evinrude (OMC\/BRP) outboard drive system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a cotter pin to install a propeller, and does this kit include one?\u003c\/strong\u003e Yes, a cotter pin is required to lock the prop nut in place so it cannot back off the shaft, and the Sierra 18-3717 kit includes one along with the nut and spacer.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162490587,"sku":"SIE-18-3717","price":9.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3717_lg__09550.1558126715.500.750.jpg?v=1785189067"},{"product_id":"stainless-steel-locknut-for-mercruiser-mr-alpha-one-drives-replaces-11-859116-11-13439-1-sierra-18-3721-9-7-16-in-pack-of-5","title":"Sierra 18-3721-9 Stainless Steel Locknut, 7\/16-20 Thread, Mercury Outboard\/Stern Drive, Pack of 5","description":"\u003cp\u003eThe Sierra 18-3721-9 is a stainless steel locknut built for Mercury and Mariner outboard and stern drive applications. It is designed for use with MCM inner transom studs and the prop nut on Mercury 39 and 60 outboards (1968 and newer, 8 spline). Each locknut is machined from stainless steel with a nylon insert, which resists loosening from vibration and keeps a secure, corrosion-resistant hold in a wet marine environment. The 7\/16 inch - 20 thread size matches the original equipment stud and prop nut fitment it is designed to replace.\u003c\/p\u003e\u003cp\u003eThis part is sold in a package of 5 locknuts, making it a convenient stock-up option for routine drive system maintenance, rebuilds, or keeping a spare on hand. Sierra manufactures this locknut to meet or exceed the specification of the original equipment part it replaces, so it installs and performs as a direct equivalent. The stainless steel construction with silver finish resists rust and salt water corrosion better than plain steel hardware, which matters for transom and lower unit hardware exposed to moisture.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3721-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 7\/16 inch - 20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel with nylon insert\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Locknut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 5 locknuts per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.11 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 11-34933, 11-95702, 11-82671015, 11-46355, 11-33962, 11-29241, 11-24648, 11-22178, 11-21298\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury\/Mariner outboard and stern drive system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMCM inner transom studs and prop nut\u003c\/li\u003e\n\u003cli\u003eMercury 39 and 60 outboards, 1968 and newer, 8 spline\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e11-34933\u003c\/li\u003e\n\u003cli\u003e11-95702\u003c\/li\u003e\n\u003cli\u003e11-82671015\u003c\/li\u003e\n\u003cli\u003e11-46355\u003c\/li\u003e\n\u003cli\u003e11-33962\u003c\/li\u003e\n\u003cli\u003e11-29241\u003c\/li\u003e\n\u003cli\u003e11-24648\u003c\/li\u003e\n\u003cli\u003e11-22178\u003c\/li\u003e\n\u003cli\u003e11-21298\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size is the Sierra 18-3721-9 locknut?\u003c\/strong\u003e The Sierra 18-3721-9 locknut has a 7\/16 inch - 20 thread size, matching the original equipment transom stud and prop nut thread it is designed to replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many locknuts come in a package?\u003c\/strong\u003e Each package of the 18-3721-9 contains 5 stainless steel locknuts, so buyers get a full set for a service job or spares for future use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-3721-9 locknut used for?\u003c\/strong\u003e It is used with MCM inner transom studs and the prop nut on Mercury 39 and 60 outboards, 1968 and newer with 8 spline configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the locknut made from?\u003c\/strong\u003e The 18-3721-9 is made from stainless steel with a nylon insert, which resists corrosion in marine environments and helps the nut resist loosening from vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3721-9 replace Mercury OEM part numbers?\u003c\/strong\u003e Yes, this Sierra locknut replaces Mercury\/Mariner OEM numbers 11-34933, 11-95702, 11-82671015, 11-46355, 11-33962, 11-29241, 11-24648, 11-22178, and 11-21298.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3721-9 locknut package weigh?\u003c\/strong\u003e The package of 5 Sierra 18-3721-9 locknuts weighs 0.11 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3721-9 a genuine or aftermarket part?\u003c\/strong\u003e The 18-3721-9 is a Sierra-manufactured aftermarket replacement part, built to meet or exceed the specification of the original equipment locknut it replaces rather than being a Mercury-branded OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the locknut have?\u003c\/strong\u003e The 18-3721-9 has a stainless steel finish in silver, chosen for corrosion resistance in wet marine conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3721-9 fit any outboard other than Mercury 39 and 60?\u003c\/strong\u003e The stated fitment for the 18-3721-9 is Mercury 39 and 60 outboards, 1968 and newer with 8 spline; it is not specified for other outboard models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does this locknut use a nylon insert?\u003c\/strong\u003e The nylon insert in the Sierra 18-3721-9 helps the locknut resist loosening from engine and drive vibration, keeping the transom stud and prop nut connection secure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3721-9?\u003c\/strong\u003e An order of the 18-3721-9 includes a package of 5 stainless steel locknuts with nylon inserts, sized for 7\/16 inch - 20 threads.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162556123,"sku":"SIE-18-3721-9","price":16.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-3721-9__67619.1722512328.500.750.jpg?v=1785188149"},{"product_id":"sierra-18-3733-prop-nut-kit-for-omc-cobra-sx-sterndrive-prop-nut-keeper-cotter-pin-spacer","title":"Sierra 18-3733 Prop Nut Kit, White, for SX Cobra Drives","description":"\u003cp\u003eThe Sierra 18-3733 Prop Nut Kit is a complete propeller hardware set for SX Cobra drives, engineered to replace the original equipment components with parts that meet or exceed OEM standards. The kit contains everything needed for a proper prop installation in one package: a prop nut and keeper, a cotter pin, and a prop spacer, so there is no need to source individual pieces separately.\u003c\/p\u003e\u003cp\u003eThe prop nut is machined from brass with a white finish and features an M10 right-hand thread on the outside and an M6 inside thread, cut to Class 2A thread class for a reliable, secure fit. The hexagonal nut design allows for standard wrench installation, while the included cotter pin locks the assembly in place to prevent the nut from backing off during operation. The prop spacer completes the kit, ensuring correct alignment and spacing on the propeller shaft.\u003c\/p\u003e\u003cp\u003eThis kit is intended for SX Cobra applications and is built to the same fit, form, and function standards as the original hardware it replaces, making it a straightforward drop-in solution for routine propeller maintenance or hardware replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3733\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Thread Size:\u003c\/strong\u003e M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Thread Size:\u003c\/strong\u003e M6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Right-hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Hexagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Class 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e 18-3708-1 Prop Nut and Keeper, 18-3741 Cotter Pin, 184194 Prop Spacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 6 x 1.25 x 7.12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.33 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282105624\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSX Cobra\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-3733 Prop Nut Kit?\u003c\/strong\u003e The kit contains an 18-3708-1 prop nut and keeper, an 18-3741 cotter pin, and a 184194 prop spacer, giving you all the hardware needed for one propeller installation in a single package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the 18-3733 Prop Nut Kit fit?\u003c\/strong\u003e The Sierra 18-3733 Prop Nut Kit is designated for SX Cobra drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the prop nut made from?\u003c\/strong\u003e The prop nut in the 18-3733 kit is machined from brass with a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-3733 prop nut use?\u003c\/strong\u003e The prop nut has an M10 outside thread and an M6 inside thread, both cut to Class 2A thread class with a right-hand thread direction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the cotter pin included with this kit?\u003c\/strong\u003e Yes, the 18-3733 kit includes the 18-3741 cotter pin used to lock the prop nut assembly in place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include a prop spacer?\u003c\/strong\u003e Yes, a 184194 prop spacer is included in the Sierra 18-3733 Prop Nut Kit to ensure correct alignment on the propeller shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the prop nut kit?\u003c\/strong\u003e The Sierra 18-3733 Prop Nut Kit has a white finish on the machined brass prop nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3733 Prop Nut Kit weigh?\u003c\/strong\u003e The Sierra 18-3733 Prop Nut Kit weighs 0.33 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the prop nut kit packaging?\u003c\/strong\u003e The Sierra 18-3733 Prop Nut Kit measures 6 x 1.25 x 7.12 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this kit meet original equipment standards?\u003c\/strong\u003e The components in the Sierra 18-3733 Prop Nut Kit are built to meet or exceed the original equipment parts they replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread style does the 18-3733 prop nut have?\u003c\/strong\u003e The prop nut features a hexagonal, fully threaded design for standard wrench installation.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162588891,"sku":"SIE-18-3733","price":24.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3733_lg__14662.1558128252.500.750.jpg?v=1785187973"},{"product_id":"sierra-18-3726-brass-prop-nut-for-suzuki-dt75-140-df60-70-v-style-outboards-replaces-09141-18005","title":"Sierra Prop Nut 18-3726, Replaces OE 09141-18005, Brass","description":"\u003cp\u003eThe Sierra 18-3726 Prop Nut secures the propeller onto the propeller shaft of an outboard motor, providing a durable, precision-machined fastening point that meets or exceeds original equipment quality. Machined from brass, this prop nut resists corrosion in the marine environment while standing up to the torque loads placed on the propeller during operation. It features a hex head with a Unified National Coarse thread in a 12mm (M12) size, fully threaded with a right-hand thread direction and a Class 3A thread fit for reliable engagement on the shaft. The nut carries a machined exterior finish and is built to Sierra's industrial grade rating, making it a direct fit replacement for the original equipment part it is designed to replace. This is a compact, single-piece hardware item, sold individually, and is intended for boat owners and marine technicians performing propeller installation, removal, or maintenance. Because it directly replaces OE part number 09141-18005, it installs using the same thread engagement and torque specifications as the original hardware, with no modification required. Keep a spare on hand whenever servicing your propeller, since prop nuts should be inspected for thread wear or damage each time the propeller is removed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3726\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Prop Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Prop Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 12mm (M12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Class 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Groove Diameter:\u003c\/strong\u003e 12 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Rating:\u003c\/strong\u003e Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e09141-18005\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3726 Prop Nut replace?\u003c\/strong\u003e The Sierra 18-3726 Prop Nut directly replaces OEM part number 09141-18005, so it installs as a drop-in equivalent using the same thread engagement as the original nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3726 prop nut made from?\u003c\/strong\u003e It is machined from brass, a material chosen for its corrosion resistance in marine environments and its ability to hold up under the torque loads placed on a propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does this prop nut use?\u003c\/strong\u003e The 18-3726 uses a 12mm (M12) Unified National Coarse thread, fully threaded, with a right-hand thread direction and a Class 3A thread fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3726 weigh?\u003c\/strong\u003e This prop nut weighs 0.13 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-3726 prop nut?\u003c\/strong\u003e Item dimensions are 0.39 x 0.39 x 0.39 inches, consistent with a compact single hex prop nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3726 meet OEM quality standards?\u003c\/strong\u003e Yes, Sierra manufactures the 18-3726 Prop Nut to meet or exceed the original equipment part it replaces, part number 09141-18005.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many prop nuts come in one purchase?\u003c\/strong\u003e One Sierra 18-3726 Prop Nut is included per purchase; it is sold as a single piece, not a kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the 18-3726 prop nut have?\u003c\/strong\u003e The 18-3726 has a machined exterior finish and is white in color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3726 a hex nut?\u003c\/strong\u003e Yes, the Sierra 18-3726 Prop Nut has a hex head and hex drive style for use with a standard wrench or socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace my outboard's prop nut?\u003c\/strong\u003e Inspect the prop nut, such as the Sierra 18-3726, whenever the propeller is removed, and replace it if the threads show wear or damage since a worn nut can loosen under load.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat grade rating does the Sierra 18-3726 carry?\u003c\/strong\u003e Sierra rates the 18-3726 Prop Nut as industrial grade.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162654427,"sku":"SIE-18-3726","price":7.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3726_lg__40035.1558127608.500.750.jpg?v=1785188355"},{"product_id":"sierra-18-3730-lock-nut-for-omc-volvo-penta-sterndrives-replaces-omc-3852648-3853329-and-volvo-penta-3852648","title":"Sierra 18-3730 Lock Nut - Replaces OMC\/Volvo Penta 3852648","description":"\u003cp\u003eThe Sierra 18-3730 is a metal lock nut engineered as a direct replacement for OMC and Volvo Penta part 3852648. It is built to meet or exceed the quality of the original equipment part it replaces, making it a reliable choice for boat owners performing maintenance or repairs who want factory-equivalent fit and performance without sourcing a discontinued OEM part.\u003c\/p\u003e\u003cp\u003eThis lock nut is a fully threaded metric fastener with a hex head and a machined exterior finish. Its metal construction, using alloy steel and stainless steel, is designed to resist the corrosive marine environment while providing the clamping strength required for secure fastening. As a lock-style nut, it is intended to stay put under vibration, an important trait for hardware used on boats.\u003c\/p\u003e\u003cp\u003eThe Sierra 18-3730 falls under Sierra's Volvo Penta prop nut and washer offerings, reflecting its common use in propeller hardware and related assemblies where a dependable, corrosion-resistant lock nut is needed. Every Sierra part is manufactured to be interchangeable with the original equipment number it lists, so installation follows the same procedure as the OEM nut it replaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3730\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Volvo Penta Prop Nuts \u0026amp; Washers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Type:\u003c\/strong\u003e Alloy Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e ISO Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Class 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Type:\u003c\/strong\u003e Brushed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 5.13 x 4 x 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282103347\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal marine fastener; consult the Replaces (OEM) list below to confirm compatibility with your specific application.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3852648\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3730 lock nut replace?\u003c\/strong\u003e The Sierra 18-3730 is a direct replacement for OMC and Volvo Penta part number 3852648.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3730 the same as the original OMC 3852648 nut?\u003c\/strong\u003e Yes, the Sierra 18-3730 is manufactured to meet or exceed the quality of the original OMC 3852648 part it replaces, so it installs and functions the same way.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-3730 lock nut made of?\u003c\/strong\u003e It is made of metal, specifically alloy steel and stainless steel, with a machined exterior finish for corrosion resistance in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread type does the 18-3730 lock nut use?\u003c\/strong\u003e The 18-3730 uses an ISO metric thread, fully threaded with a Class 2A thread fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3730 lock nut weigh?\u003c\/strong\u003e The Sierra 18-3730 lock nut weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat style of nut is the 18-3730?\u003c\/strong\u003e It is a lock-style nut with a hex head, designed to resist loosening from vibration once tightened.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-3730 lock nut typically used for?\u003c\/strong\u003e Sierra lists the 18-3730 under its Volvo Penta prop nuts and washers category, making it suited for propeller hardware and similar fastening applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-3730 fit hardware originally equipped with Volvo Penta 3852648?\u003c\/strong\u003e Yes, the 18-3730 is a direct replacement for Volvo Penta part 3852648 as well as the equivalent OMC number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many lock nuts come in one Sierra 18-3730 package?\u003c\/strong\u003e The Sierra 18-3730 is sold as a single lock nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the Sierra 18-3730 lock nut have?\u003c\/strong\u003e It has a machined, brushed exterior finish.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162719963,"sku":"SIE-18-3730","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3730_lg__47783.1558127942.500.750.jpg?v=1785188885"},{"product_id":"sierra-18-3741-9-stainless-steel-cotter-pin-pack-of-10-for-evinrude-johnson-outboard-prop-nut-replaces-omc-309955-314502","title":"Sierra Stainless Steel Cotter Pin 18-3741-9, Pack of 10, for Outboard Propeller Nuts","description":"\u003cp\u003eThe Sierra 18-3741-9 is a stainless steel cotter pin used to secure outboard propeller nuts in place, preventing the nut from backing off during operation. Cotter pins are a required part of a proper propeller installation, and stainless steel construction resists the corrosion that comes from constant saltwater or freshwater exposure below the waterline. This item is sold as a package of 10 pins, giving you enough on hand for routine propeller service, seasonal maintenance, or keeping spares in the boat for on-water prop changes.\u003c\/p\u003e\u003cp\u003eInstalling a fresh cotter pin any time a propeller nut is removed and reinstalled is standard practice, since a bent or reused pin is more likely to fail. The compact size and light weight make this an easy item to keep in a tackle box or tool kit alongside other prop hardware.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3741-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 10 cotter pins per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282164621\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Outboard propeller nut hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-3741-9 cotter pin used for?\u003c\/strong\u003e It secures an outboard propeller nut so the nut cannot back off the propeller shaft during operation, part number 18-3741-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cotter pins come in a package?\u003c\/strong\u003e The 18-3741-9 is sold as a package of 10 stainless steel cotter pins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3741-9 cotter pin made from?\u003c\/strong\u003e Stainless steel, chosen for corrosion resistance in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a package of 18-3741-9 cotter pins weigh?\u003c\/strong\u003e A package weighs 0.07 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould a cotter pin be reused after removing a propeller?\u003c\/strong\u003e No, a new cotter pin such as the Sierra 18-3741-9 should be installed any time the propeller nut is removed, since a bent or previously bent pin is more prone to failure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3741-9 cotter pin only for Evinrude outboards?\u003c\/strong\u003e It is listed for outboard propeller nut applications; the Sierra 18-3741-9 part number should be matched to your specific propeller nut and shaft hardware before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The UPC for the Sierra 18-3741-9 package of cotter pins is 808282164621.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a cotter pin the same as a keeper clip?\u003c\/strong\u003e No, a cotter pin is a separate piece of hardware from a nut keeper; the 18-3741-9 is specifically a cotter pin, not a keeper.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3741-9?\u003c\/strong\u003e You receive one package containing 10 stainless steel cotter pins, part number 18-3741-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy choose a genuine Sierra cotter pin over a generic one?\u003c\/strong\u003e The Sierra 18-3741-9 is manufactured in stainless steel to hold up to marine conditions, giving a consistent fit and corrosion resistance for propeller nut retention.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162851035,"sku":"SIE-18-3741-9","price":9.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3741-9__29460.1737842263.500.750.jpg?v=1785329183"},{"product_id":"sierra-18-3742-9-marine-cotter-pin-oem-314502-for-evinrude-johnson-omc-prop-nuts-1-8-x-1-1-4in-pack-of-10","title":"Sierra 18-3742-9 Cotter Pin, OEM 314502 Replacement, Pack of 10","description":"\u003cp\u003eThe Sierra 18-3742-9 Cotter Pin is a marine-grade fastener used to secure propeller nuts and other threaded hardware on outboard and stern drive lower units. Sold in a pack of 10, this pin is built to meet or exceed original equipment quality, making it a reliable choice for routine prop maintenance and hardware replacement. Each pin measures 1\/8 x 1-1\/4 inches and is constructed from alloy steel for corrosion resistance and durability in a marine environment.\u003c\/p\u003e\u003cp\u003eThis cotter pin is commonly paired with a prop nut and prop spacer during propeller installation, locking the nut in place to prevent it from backing off under vibration and load. It cross-references directly to OMC and Evinrude\/Johnson part number 314502, so it is a straightforward replacement when servicing older Evinrude and OMC lower units. Keeping a pack on hand is useful for any boat owner who regularly removes and reinstalls a propeller, since cotter pins are a single-use fastener that should be replaced each time.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3742-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1\/8 x 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type:\u003c\/strong\u003e Cotter Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal fit for propeller nuts and hardware calling for a 1\/8 x 1-1\/4 inch cotter pin, including Evinrude\/Johnson and OMC applications using OEM part number 314502.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e314502\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-3742-9 cotter pin?\u003c\/strong\u003e The Sierra 18-3742-9 cotter pin measures 1\/8 x 1-1\/4 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pins come in a pack?\u003c\/strong\u003e The 18-3742-9 is sold in a pack of 10 cotter pins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is this cotter pin made from?\u003c\/strong\u003e It is made from alloy steel, which resists corrosion in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-3742-9 replace?\u003c\/strong\u003e It replaces OEM part number 314502, used on Evinrude\/Johnson and OMC applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-3742-9 is an aftermarket cotter pin manufactured to meet or exceed original equipment quality.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this cotter pin used for?\u003c\/strong\u003e It is used to secure a propeller nut and other threaded lower-unit hardware, preventing the nut from backing off under vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould cotter pins be reused after removing a propeller?\u003c\/strong\u003e No, a cotter pin such as the 18-3742-9 is a single-use fastener and should be replaced each time the propeller is removed and reinstalled.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in a pack of the 18-3742-9?\u003c\/strong\u003e Each pack contains 10 alloy steel cotter pins, part number 18-3742-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3742-9 cotter pin weigh?\u003c\/strong\u003e The pack weighs 0.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3742-9 fit both Evinrude and OMC lower units?\u003c\/strong\u003e Yes, it cross-references to OEM number 314502, which covers Evinrude\/Johnson and OMC applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162883803,"sku":"SIE-18-3742-9","price":9.81,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3742-9__25992.1737858257.500.750.jpg?v=1785188449"},{"product_id":"sierra-18-3744-9-marine-cotter-pin-replaces-volvo-penta-3852255-3-32-x-3-4-pack-of-10-fits-sx-dps-dp-gas-sterndrives","title":"Sierra 18-3744-9 Cotter Pin, 3\/32 x 3\/4 Inch, Replaces 552906, Pack of 10","description":"\u003cp\u003eThe Sierra 18-3744-9 Cotter Pin is a marine-grade cotter pin sized 3\/32 inch x 3\/4 inch, sold in a package of ten. Cotter pins like this one are used to lock a castellated prop nut in place on the propeller shaft, preventing the nut from backing off during operation, and are also used in other fastener and linkage points on an outboard or stern drive that call for this size pin. Because they are inexpensive and take direct load and vibration over time, cotter pins are a routine replacement item any time a prop nut, spacer, or similar hardware is removed and reinstalled -- carrying spares in this size means you are never stuck reusing a bent or fatigued pin.\u003c\/p\u003e\u003cp\u003eEach package contains ten individual pins so you have enough on hand for multiple service jobs or to keep as spares in a toolbox. The 18-3744-9 is interchangeable with several OEM and aftermarket references, making it a straightforward stock replacement across GLM, Johnson\/Evinrude Outboard, OMC Stern Drive, and Volvo Penta applications that call for a cotter pin of this same 3\/32 inch x 3\/4 inch size.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3744-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Type:\u003c\/strong\u003e Cotter Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 3\/32 inch x 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e Pack of 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282164652\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eSized 3\/32 inch x 3\/4 inch for use anywhere a cotter pin of this size is called for, including securing a propeller nut on the shaft.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 22140\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude Outboard 552906\u003c\/li\u003e\n\u003cli\u003eOMC Stern Drive 3852255\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3852255\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-3744-9 cotter pin?\u003c\/strong\u003e It measures 3\/32 inch x 3\/4 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pins come in a package?\u003c\/strong\u003e The 18-3744-9 is sold in a package of ten cotter pins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this cotter pin used for?\u003c\/strong\u003e It is commonly used to lock a castellated prop nut onto the propeller shaft so the nut cannot back off, and it can serve any other fastener location on an outboard or stern drive that calls for a 3\/32 inch x 3\/4 inch cotter pin.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3744-9 interchangeable with other brands' cotter pins?\u003c\/strong\u003e Yes, it is interchangeable with GLM 22140, Johnson\/Evinrude Outboard 552906, OMC Stern Drive 3852255, and Volvo Penta 3852255.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra 18-3744-9 replace Johnson\/Evinrude part 552906?\u003c\/strong\u003e Yes, the 18-3744-9 is a direct interchange for Johnson\/Evinrude Outboard 552906.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The Sierra 18-3744-9 cotter pin package carries UPC 808282164652.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does a package weigh?\u003c\/strong\u003e A package of ten 18-3744-9 cotter pins weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this cotter pin for something other than a propeller nut?\u003c\/strong\u003e Yes, since it is a standard 3\/32 inch x 3\/4 inch cotter pin, the 18-3744-9 can be used anywhere that size pin is specified, not only on a propeller nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre these genuine Sierra parts or generic replacements?\u003c\/strong\u003e They are genuine Sierra 18-3744-9 cotter pins, manufactured to meet or exceed the original equipment part they replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy should I replace the cotter pin instead of reusing the old one?\u003c\/strong\u003e A cotter pin is a single-use locking fastener; once bent open and removed, it should not be reused, so a fresh 18-3744-9 pin should go in whenever the prop nut or other secured hardware is taken off.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3744-9 fit Volvo Penta applications?\u003c\/strong\u003e Yes, it is interchangeable with Volvo Penta 3852255.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this listing?\u003c\/strong\u003e You receive one package containing ten Sierra 18-3744-9 cotter pins sized 3\/32 inch x 3\/4 inch.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162916571,"sku":"SIE-18-3744-9","price":7.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3744-9__80893.1722494792.500.750.jpg?v=1785189097"},{"product_id":"sierra-18-3735-9-marine-cotter-pin-pack-of-10-5-32-x-1-3-8-in-stainless-steel-replaces-oem-5030087","title":"Sierra 18-3735-9 Marine Cotter Pin Pack of 10, Replaces Suzuki 09204-03003 - Fits DT9.9\/15C, DF9.9\/15, 8\/9.9C Outboards","description":"\u003cp\u003eThe Sierra 18-3735-9 is a marine-grade cotter pin sold as a package of 10, sized 5\/32 x 1-3\/8 inches. Cotter pins like this are used to lock castellated nuts and clevis pins in place on outboard drive and propeller hardware, preventing the nut from backing off under vibration and load. Each pin is made of stainless steel for corrosion resistance in the marine environment and finished in white.\u003c\/p\u003e\u003cp\u003eThis cotter pin is engineered to meet or exceed the quality of the original equipment part it replaces, and Sierra supplies OEM engine manufacturers and boat builders with parts of this same specification. It fits Suzuki outboards including the DT9.9 \u0026amp; 15C, DF9.9 \u0026amp; 15, and 8 \u0026amp; 9.9C Oil Injected models, and replaces Suzuki OEM numbers 09204-03003 and 09204-03004. Buyers replacing a lower unit, propeller nut, or shift linkage cotter pin on these Suzuki outboards can use this part directly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3735-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 5\/32 x 1-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 10 pieces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.06 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSuzuki DT9.9 \u0026amp; 15C, DF9.9 \u0026amp; 15, 8 \u0026amp; 9.9C Oil Injected\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e09204-03003\u003c\/li\u003e\n\u003cli\u003e09204-03004\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-3735-9 cotter pin?\u003c\/strong\u003e Each pin in the Sierra 18-3735-9 package measures 5\/32 x 1-3\/8 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cotter pins come in the 18-3735-9 package?\u003c\/strong\u003e The Sierra 18-3735-9 is sold as a package of 10 cotter pins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboards does the 18-3735-9 cotter pin fit?\u003c\/strong\u003e This cotter pin fits Suzuki DT9.9 \u0026amp; 15C, DF9.9 \u0026amp; 15, and 8 \u0026amp; 9.9C Oil Injected outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-3735-9 replace?\u003c\/strong\u003e The 18-3735-9 replaces Suzuki OEM numbers 09204-03003 and 09204-03004.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3735-9 cotter pin made of?\u003c\/strong\u003e It is made of stainless steel, which resists corrosion in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-3735-9 cotter pin?\u003c\/strong\u003e The Sierra 18-3735-9 cotter pin is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3735-9 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-3735-9 is a Sierra-manufactured replacement part engineered to meet or exceed the quality of the original Suzuki equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between Sierra 18-3735 and 18-3735-9?\u003c\/strong\u003e 18-3735 is the same cotter pin priced and sold per piece, while 18-3735-9 is the identical part sold as a package of 10.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3735-9 cotter pin package weigh?\u003c\/strong\u003e The Sierra 18-3735-9 package weighs 0.06 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a cotter pin used for on an outboard motor?\u003c\/strong\u003e A cotter pin like the Sierra 18-3735-9 locks a castellated nut or clevis pin in place, such as on a propeller shaft nut or shift linkage, so it cannot back off from vibration.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988164063451,"sku":"SIE-18-3735-9","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3735-9__08470.1722518451.500.750.jpg?v=1785188548"},{"product_id":"retaining-nut-for-mercruiser-stern-drive-shaft-housing-replaces-816811-1-35992-sierra-18-3752","title":"Sierra 18-3752 Stainless Steel Retaining Nut for Mercruiser Stern Drive Shaft Housing - Replaces 816811-1","description":"\u003cp\u003eThe Sierra 18-3752 is a stainless steel retaining nut engineered for the drive shaft housing on Mercruiser stern drive units. This nut secures the drive shaft housing assembly in place, and is manufactured to meet or exceed the specifications of the original equipment part it replaces. Sierra builds this component from stainless steel for corrosion resistance in the marine environment, with a fully threaded, right-hand Unified National Coarse (UNC) thread pattern and an inside thread size of M14. The flat-style head and coarse thread class are designed to provide a secure, reliable hold rated for a maximum shear strength between 1000 and 3000 lbf. Each package includes one retaining nut. As a direct fit for Mercruiser stern drive applications, it is intended as a straightforward replacement during drive shaft housing service or maintenance, and it carries the same fit and function expected from the original hardware it replaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3752\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Thread Size:\u003c\/strong\u003e M14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Coverage:\u003c\/strong\u003e Fully Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Shear Strength:\u003c\/strong\u003e 1000 to 3000 lbf\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.25 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999975959\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercruiser stern drive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 retaining nut per package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser stern drive applications (drive shaft housing)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e816811-1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3752 retaining nut fit?\u003c\/strong\u003e The Sierra 18-3752 is designed for the drive shaft housing on Mercruiser stern drive units.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-3752 replace?\u003c\/strong\u003e It replaces OEM number 816811-1, and Sierra 18-3752 is manufactured to meet or exceed that original part's specifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3752 retaining nut made from?\u003c\/strong\u003e Stainless steel, chosen for corrosion resistance in marine environments where this drive shaft housing hardware operates.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many nuts come in a package?\u003c\/strong\u003e One retaining nut per package is included with the Sierra 18-3752.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the thread size and type on this nut?\u003c\/strong\u003e The 18-3752 has an M14 inside thread size with a fully threaded, right-hand Unified National Coarse (UNC) thread pattern.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-3752 nut?\u003c\/strong\u003e Item dimensions are 0.39 x 0.39 x 0.39 inches for the Sierra 18-3752 retaining nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3752 weigh?\u003c\/strong\u003e The Sierra 18-3752 retaining nut weighs 0.25 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum shear strength rating?\u003c\/strong\u003e This retaining nut is rated between 1000 and 3000 lbf maximum shear strength.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3752 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket replacement manufactured by Sierra to meet or exceed the performance of the original equipment part it replaces, 816811-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat head style and drive type does this nut use?\u003c\/strong\u003e The 18-3752 has a flat screw head style and is configured for stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the 18-3752 have?\u003c\/strong\u003e It has a white color with a stainless steel finish.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165013723,"sku":"SIE-18-3752","price":30.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3752_lg__21167.1558126389.500.750.jpg?v=1785188196"},{"product_id":"sierra-18-3751-spanner-nut-for-mercruiser-alpha-one-gen-ii-bravo-sterndrives-replaces-mercury-14-79447","title":"Sierra Spanner Nut 18-3751, Replaces Mercury Marine 79448, For V-6 Reverse Clutch","description":"\u003cp\u003eThe Sierra 18-3751 Spanner Nut is a stainless steel locknut engineered for V-6 stern drive reverse clutch assemblies. It is machined to precisely thread onto the driveshaft and hold the reverse clutch components in correct alignment and preload during operation. As a direct replacement for Mercury Marine part 79448, it restores original fit and function when the factory nut is worn, corroded, or damaged during a clutch or bearing service.\u003c\/p\u003e\u003cp\u003eConstructed from stainless steel for corrosion resistance in the marine environment, this spanner nut is a small but critical component in the reverse clutch stack, and using the correct part number ensures proper torque retention and clutch engagement. It is sold individually and is priced per package.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3751\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Spanner Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.23 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999316509\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e V-6 reverse clutch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Mercury Marine 79448\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eV-6\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e79448\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3751 Spanner Nut replace?\u003c\/strong\u003e The Sierra 18-3751 Spanner Nut is a direct replacement for Mercury Marine part number 79448.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engine application is the 18-3751 spanner nut designed for?\u003c\/strong\u003e Sierra 18-3751 is designed for V-6 reverse clutch applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3751 spanner nut made from?\u003c\/strong\u003e It is made from stainless steel, which resists corrosion in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3751 Spanner Nut weigh?\u003c\/strong\u003e This spanner nut weighs 0.23 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-3751 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e 18-3751 is a genuine Sierra International part, sold under Sierra's own part number as a replacement for Mercury Marine 79448.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3751 Spanner Nut?\u003c\/strong\u003e The UPC for the Sierra 18-3751 Spanner Nut is 030999316509.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-3751 Spanner Nut sold?\u003c\/strong\u003e The 18-3751 Spanner Nut is priced and sold per package as an individual locknut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat role does the spanner nut play in a reverse clutch assembly?\u003c\/strong\u003e In the V-6 reverse clutch assembly, the 18-3751 spanner nut threads onto the driveshaft to secure and preload the reverse clutch components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Mercury Marine 79448 nut work in place of Sierra 18-3751?\u003c\/strong\u003e Yes, Mercury Marine 79448 and Sierra 18-3751 are the same replacement part, so either part number will fit the same V-6 reverse clutch application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3751 come with washers or other clutch hardware?\u003c\/strong\u003e No, 18-3751 is the spanner nut only; it does not include tab washers or other reverse clutch hardware.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165243099,"sku":"SIE-18-3751","price":24.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3751__38182.1737899487.500.750.jpg?v=1785187981"},{"product_id":"sierra-18-3774-prop-nut-kit-for-suzuki-dt75-140-df60-70-v-style-outboards-replaces-57630-94500","title":"Sierra Prop Nut Kit 18-3774, Replaces Suzuki 57630-94500, Fits DT75\/85\/90\/100\/115\/140 \u0026 DF60\/70 V-Style","description":"\u003cp\u003eThe Sierra 18-3774 Prop Nut Kit is a complete propeller hardware kit for compatible Suzuki outboards, combining the prop nut and cotter pin needed to properly secure the propeller to the propeller shaft. Rather than sourcing the nut and pin as separate items, this kit bundles both components so the correct matched hardware is on hand for a propeller installation or replacement job.\u003c\/p\u003e\u003cp\u003eThe kit contains a Sierra 18-3726 Prop Nut and a Sierra 18-3735 Cotter Pin, and it is interchangeable with the Suzuki 57630-94500 nut. It is built for outboards using the V-Style prop hub configuration, covering Suzuki DT75, DT85, DT90, DT100, DT115, and DT140 models with V-Style, as well as DF60 and DF70 models with V-Style.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3774\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 18-3726 Prop Nut, 18-3735 Cotter Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e Suzuki 57630-94500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 1.61 x 5.98 x 7.09 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282238216\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSuzuki DT75\/85\/90\/100\/115, 140 with V-Style\u003c\/li\u003e\n\u003cli\u003eSuzuki DF60\/70 with V-Style\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e57630-94500\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3774 Prop Nut Kit include?\u003c\/strong\u003e The kit includes a Sierra 18-3726 Prop Nut and a Sierra 18-3735 Cotter Pin, giving you both pieces of hardware needed to secure the propeller in one purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3774 kit interchangeable with a Suzuki part number?\u003c\/strong\u003e Yes, the Sierra 18-3774 Prop Nut Kit is interchangeable with Suzuki part number 57630-94500.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Suzuki outboards is the 18-3774 Prop Nut Kit designed for?\u003c\/strong\u003e It is designed for Suzuki DT75, DT85, DT90, DT100, DT115, and DT140 models with V-Style, as well as DF60 and DF70 models with V-Style.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this kit fit a Suzuki outboard that does not use the V-Style prop hub?\u003c\/strong\u003e The 18-3774 kit is specified for outboards with the V-Style configuration; fitment outside the listed V-Style DT75\/85\/90\/100\/115\/140 and DF60\/70 models is not specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the prop nut kit weigh?\u003c\/strong\u003e The Sierra 18-3774 Prop Nut Kit weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the packaged kit?\u003c\/strong\u003e The 18-3774 kit measures 1.61 x 5.98 x 7.09 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace the cotter pin every time I remove the propeller?\u003c\/strong\u003e The 18-3735 Cotter Pin included in the 18-3774 kit is meant to be replaced whenever the propeller is removed and reinstalled, which is why it is bundled with the prop nut in this kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e This is a Sierra-branded Prop Nut Kit, part number 18-3774, manufactured for compatibility with the listed Suzuki outboard models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy the prop nut and cotter pin separately instead of the kit?\u003c\/strong\u003e The 18-3726 Prop Nut and 18-3735 Cotter Pin are the individual components that make up the 18-3774 kit, so buyers who only need one piece can look for those individual part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number should I search for to confirm this fits my Suzuki outboard?\u003c\/strong\u003e Suzuki 57630-94500 is the OEM number this Sierra 18-3774 kit replaces, so matching that number against your outboard's parts diagram confirms fitment.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165374171,"sku":"SIE-18-3774","price":28.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3774_lg__85253.1558127223.500.750.jpg?v=1785188987"},{"product_id":"sierra-18-3785-prop-nut-for-mercruiser-bravo-ii-sterndrive-replaces-oem-11-82671127","title":"Sierra Prop Nut 18-3785 for Mercruiser Prop Hardware","description":"\u003cp\u003eThe Sierra Prop Nut 18-3785 is a replacement propeller nut engineered for Mercruiser prop hardware applications. It secures the propeller onto the propeller shaft, keeping the prop properly seated and preventing it from working loose under the vibration and load of normal running conditions. As a dedicated hardware component, it is a simple, purpose-built part meant to restore the original clamping function at the shaft when an old nut is worn, corroded, or lost during a prop change.\u003c\/p\u003e\u003cp\u003eThis prop nut is sold as a standalone hardware item, making it a straightforward, low-cost way to complete a propeller installation or keep a spare on hand for routine prop swaps and maintenance. Because it is categorized specifically under Mercruiser prop hardware, it is intended for use with compatible Mercruiser propeller shaft setups.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3785\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Prop Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Prop Hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.31 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Mercruiser prop hardware applications.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are listed for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra Prop Nut 18-3785 used for?\u003c\/strong\u003e It secures a propeller onto the propeller shaft on compatible Mercruiser prop hardware setups, holding the prop firmly in place during operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3785 prop nut sold individually?\u003c\/strong\u003e Yes, Sierra part number 18-3785 is sold as a single Prop Nut, not as part of a kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3785 prop nut weigh?\u003c\/strong\u003e It weighs 0.31 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of hardware does part 18-3785 belong to?\u003c\/strong\u003e The Sierra 18-3785 is listed under Mercruiser Prop Hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3785 prop nut fit all Mercruiser drives?\u003c\/strong\u003e Specific engine, drive, or year fitment is not specified for the 18-3785; confirm compatibility with your particular Mercruiser prop hardware setup before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e Part number 18-3785 is a genuine Sierra part, sold under the Sierra brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace my propeller nut?\u003c\/strong\u003e A prop nut like the Sierra 18-3785 should be replaced if it is worn, corroded, or removed and damaged during a propeller change, since a compromised nut cannot reliably retain the prop on the shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat else do I need besides the 18-3785 prop nut to install a propeller?\u003c\/strong\u003e The 18-3785 Prop Nut is the retaining nut only; other hardware such as washers, tab washers, or cotter pins used in your specific prop assembly are separate components not included with this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-3785 prop nut made of?\u003c\/strong\u003e Material composition is not specified for the Sierra 18-3785 Prop Nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3785 prop nut?\u003c\/strong\u003e The Sierra Prop Nut 18-3785 is identified by UPC 808282185510.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165406939,"sku":"SIE-18-3785","price":11.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3785_lg__60535.1558127708.500.750.jpg?v=1785329180"},{"product_id":"prop-nut-kit-for-yamaha-4-hp-and-5-hp-outboards-1984-1991-replaces-647-45616-02-sierra-18-3782","title":"Sierra 18-3782 Prop Nut Kit, White - Stainless Steel M14 Prop Nut, Spacer, Cotter Pin","description":"\u003cp\u003eThe Sierra 18-3782 Prop Nut Kit is a complete stainless steel hardware set for securing an outboard propeller to the shaft. The kit is finished in white and includes a machined prop nut, a spacer, and a cotter pin, giving you every fastener needed to reinstall or replace worn prop hardware in one purchase rather than sourcing each piece separately. The prop nut uses an M14 thread with a Class 2A right-hand Unified National Coarse (UNC) thread and a hex head\/hex fastener design for a secure, wrench-ready fit. Built from stainless steel, the kit resists the corrosion and salt exposure common in marine environments, helping the nut, spacer, and cotter pin hold up over repeated prop removal and reinstallation. The individual components are packaged together as a 4-piece set, so boaters performing routine propeller maintenance, prop swaps, or shear-pin\/hub service have matched hardware on hand. The Sierra 18-3782 is interchangeable with GLM 21251, Mallory 9-73992, and Yamaha 6G5-W4599-00-00, making it a straightforward replacement option when those cross-reference numbers are called out on an existing setup.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3782\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Unified National Coarse (UNC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Style:\u003c\/strong\u003e Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Class:\u003c\/strong\u003e Class 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.56 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282240622\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 18-3726 Prop Nut, 18-3735 Cotter Pin, 18-4274 Prop Spacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Reference \/ Interchange Numbers:\u003c\/strong\u003e GLM 21251, Mallory 9-73992, Yamaha 6G5-W4599-00-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 21251\u003c\/li\u003e\n\u003cli\u003eMallory 9-73992\u003c\/li\u003e\n\u003cli\u003eYamaha 6G5-W4599-00-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-3782 Prop Nut Kit?\u003c\/strong\u003e The kit contains three components: an 18-3726 prop nut, an 18-3735 cotter pin, and an 18-4274 prop spacer, packaged together as a 4-piece set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-3782 prop nut use?\u003c\/strong\u003e The prop nut in the Sierra 18-3782 kit has an M14 thread with a Class 2A right-hand Unified National Coarse (UNC) thread pattern.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-3782 Prop Nut Kit made from?\u003c\/strong\u003e It is made from stainless steel, which resists corrosion from saltwater and freshwater exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3782 kit interchangeable with other brands?\u003c\/strong\u003e Yes, the Sierra 18-3782 Prop Nut Kit is interchangeable with GLM 21251, Mallory 9-73992, and Yamaha 6G5-W4599-00-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-3782 Prop Nut Kit?\u003c\/strong\u003e The Sierra 18-3782 Prop Nut Kit is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3782 Prop Nut Kit weigh?\u003c\/strong\u003e The kit weighs 0.56 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the components in the 18-3782 kit?\u003c\/strong\u003e The individual components measure approximately 0.39 x 0.39 x 0.39 inches each.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3782 kit include a cotter pin?\u003c\/strong\u003e Yes, an 18-3735 cotter pin is included along with the 18-3726 prop nut and 18-4274 prop spacer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat style of nut is used in the Sierra 18-3782 kit?\u003c\/strong\u003e The prop nut has a hex head with a hex fastener design for use with a standard wrench or socket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3782 Prop Nut Kit a genuine Sierra part?\u003c\/strong\u003e Yes, 18-3782 is the Sierra part number for this Prop Nut Kit, sold as a matched 4-piece hardware set.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165439707,"sku":"SIE-18-3782","price":41.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3782_lg__20961.1558127526.500.750.jpg?v=1785187990"},{"product_id":"sierra-18-3773-prop-nut-for-yamaha-6-20-hp-outboards-replaces-oem-90171-10m01","title":"Sierra 18-3773 Prop Nut - Replaces 90171-16011-00, 95307-16900-00 - Fits Yamaha 20-30 hp (1980 \u0026 Up)","description":"\u003cp\u003eThe Sierra 18-3773 Prop Nut is a replacement propeller nut engineered for Yamaha outboard motors. It secures the propeller onto the propeller shaft, keeping it correctly seated and preventing it from working loose under load. This prop nut is built as a direct replacement for the Yamaha OEM parts it corresponds to, so it installs using the same fit and thread engagement as the original hardware it is replacing.\u003c\/p\u003e\u003cp\u003eThis part is designated for Yamaha outboards in the 20-30 hp range, covering motors from 1980 and up. Because prop nuts are a wear item that can loosen or corrode over time from constant water exposure and vibration, keeping a correct-fit replacement on hand or in your spares kit helps avoid losing a propeller on the water. The 18-3773 ships as a single prop nut, ready to thread onto the propeller shaft during a routine propeller swap or hardware replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3773\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Prop Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 90171-16011-00, 95307-16900-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Yamaha 20-30 hp (1980 \u0026amp; Up)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282312107\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 8 x 6 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 prop nut per pack\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eYamaha 20-30 hp outboards (1980 \u0026amp; Up)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90171-16011-00\u003c\/li\u003e\n\u003cli\u003e95307-16900-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3773 prop nut fit?\u003c\/strong\u003e The Sierra 18-3773 prop nut fits Yamaha outboard motors in the 20-30 hp range, covering models from 1980 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM Yamaha part numbers does the 18-3773 replace?\u003c\/strong\u003e It replaces Yamaha part numbers 90171-16011-00 and 95307-16900-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3773 prop nut weigh?\u003c\/strong\u003e The Sierra 18-3773 prop nut weighs 1 pound.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3773 a genuine Yamaha part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-brand aftermarket replacement made to match the fit of Yamaha part numbers 90171-16011-00 and 95307-16900-00, not a Yamaha-branded OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many prop nuts come in one package?\u003c\/strong\u003e The 18-3773 is supplied as a single prop nut per pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3773 prop nut?\u003c\/strong\u003e The UPC listed for the Sierra 18-3773 prop nut is 808282312107.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this prop nut work on a 25 hp Yamaha outboard from 1985?\u003c\/strong\u003e Yes, the 18-3773 covers the Yamaha 20-30 hp range for motors from 1980 and up, which includes a 1985 25 hp model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the shipped dimensions of the 18-3773 prop nut?\u003c\/strong\u003e The item dimensions listed for the Sierra 18-3773 prop nut are 8 x 6 x 4 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any special tools to install the 18-3773 prop nut?\u003c\/strong\u003e Installation involves threading the prop nut onto the propeller shaft in place of the original Yamaha nut, the same way the OEM 90171-16011-00 or 95307-16900-00 nut installs; no special part-specific tooling is called out for the 18-3773 beyond standard prop-removal tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3773 the same part as Sierra 18-3709?\u003c\/strong\u003e No, the 18-3773 and 18-3709 are different Sierra prop nut part numbers with different OEM cross-references and different Yamaha fitment, so they are not interchangeable.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165505243,"sku":"SIE-18-3773","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3773__73858.1558184988.500.750.jpg?v=1785188705"},{"product_id":"sierra-18-3777-prop-nut-kit-for-suzuki-dt40-dt55-dt65-outboards-replaces-57630-94300","title":"Sierra 18-3777 Prop Nut Kit for Suzuki Outboard, Replaces Suzuki 57630-94300","description":"\u003cp\u003eThe Sierra 18-3777 Prop Nut Kit is a complete propeller hardware set built for Suzuki outboard motors. This kit bundles the four pieces needed to properly mount and secure your propeller in one package: a prop nut, a cotter pin, a washer, and a spacer, so you are not hunting down individual hardware pieces separately. The nut is manufactured from metal with a polished gold finish and a hexagonal shape, sized to an M14 thread with a 14 millimeter compatible groove diameter, and rated to an industrial grade standard for durability in continuous marine use.\u003c\/p\u003e\u003cp\u003eSierra engineers this hardware to meet or exceed the performance of the original equipment it replaces, and the company supplies parts to OEM engine manufacturers and boat builders. The kit is designed as a direct cross-reference for Suzuki outboard prop nut assemblies, making it a straightforward replacement when your existing prop hardware is worn, corroded, or missing pieces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3777\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Prop Nut Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Prop Nut, Cotter Pin, Washer, Spacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Shape:\u003c\/strong\u003e Hexagonal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type:\u003c\/strong\u003e Hex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Head Style:\u003c\/strong\u003e Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e M14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Groove Diameter:\u003c\/strong\u003e 14 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Rating:\u003c\/strong\u003e Industrial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 8 x 6 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.54 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282258887\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eSuzuki outboard motors.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e57630-92E00\u003c\/li\u003e\n\u003cli\u003e57630-94300\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-3777 Prop Nut Kit?\u003c\/strong\u003e The kit contains four pieces: a prop nut, a cotter pin, a washer, and a spacer, giving you everything needed to mount a propeller on a compatible Suzuki outboard in one purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3777 kit fit my Suzuki outboard?\u003c\/strong\u003e This kit is built for Suzuki outboard motors and cross-references directly to Suzuki OEM prop nut part numbers 57630-92E00 and 57630-94300.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-3777 replace?\u003c\/strong\u003e It replaces Suzuki OEM numbers 57630-92E00 and 57630-94300, so either of those original part numbers can be matched to this kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the prop nut made from?\u003c\/strong\u003e The prop nut in kit 18-3777 is machined from metal with a polished gold finish, giving it corrosion resistance for saltwater and freshwater use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the 18-3777 prop nut use?\u003c\/strong\u003e The nut has an M14 thread size with a compatible groove diameter of 14 millimeters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e Sierra 18-3777 is a genuine Sierra-manufactured product engineered to meet or exceed the performance of the original equipment part it replaces, not a generic aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the prop nut kit weigh?\u003c\/strong\u003e The Sierra 18-3777 Prop Nut Kit weighs 0.54 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and fastener type is the prop nut?\u003c\/strong\u003e The 18-3777 nut is hexagonal in shape and uses a hex fastener type with a flat screw head style.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-3777 kit different from buying individual hardware pieces?\u003c\/strong\u003e Instead of sourcing a prop nut, cotter pin, washer, and spacer separately, the 18-3777 kit bundles all four matched components together in one package sized for Suzuki outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3777 prop nut kit rated for industrial-grade durability?\u003c\/strong\u003e Yes, the kit carries an industrial grade rating, and Sierra builds it to withstand demanding marine environments and high horsepower outboard use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does the 18-3777 nut have?\u003c\/strong\u003e It has a gold color with a polished finish.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988165538011,"sku":"SIE-18-3777","price":29.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3777_lg__21000.1692043892.500.750.jpg?v=1785188022"},{"product_id":"prop-spacer-for-johnson-evinrude-omc-outboards-replaces-omc-314502-sierra-18-4228","title":"Sierra 18-4228 Prop Spacer, Replaces OMC 315810, for Johnson\/Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-4228 Prop Spacer is a metal spacer designed to fit on the propeller shaft of Johnson\/Evinrude outboard motors, positioning the propeller correctly between the shaft components. It is manufactured from metal for durability and is built to withstand the salt water and fresh water conditions typical of outboard motor use. This spacer is a direct replacement for OMC part number 315810, making it a straightforward swap when rebuilding or servicing a propeller assembly. As a small but essential hardware component, the prop spacer helps maintain proper spacing and alignment along the propeller shaft, supporting correct thrust washer and prop nut engagement during reassembly. It ships as a single unit and is commonly replaced alongside other prop hardware such as the prop nut and cotter pin during routine propeller maintenance. Because propeller hardware is exposed to constant water contact and mechanical load from the spinning propeller, using a correctly sized, corrosion-resistant spacer like the 18-4228 helps ensure the propeller stays properly seated and the shaft assembly performs reliably. This part is intended for Johnson\/Evinrude outboard motors and is sold as a genuine Sierra replacement part identified by OEM equivalent number OMC 315810.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4228\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Prop Spacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Mode:\u003c\/strong\u003e Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e For Salt Water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Engine Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e OMC 315810\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude Outboard Motors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 315810\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-4228 prop spacer used for?\u003c\/strong\u003e The Sierra 18-4228 is a metal spacer that fits on the propeller shaft of Johnson\/Evinrude outboard motors to position the propeller correctly during reassembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-4228 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-4228 is Sierra's own manufacturer part number for this prop spacer, not a generic aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the Sierra 18-4228 replace?\u003c\/strong\u003e It replaces OMC 315810, so it is a direct equivalent for that OEM prop spacer number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-4228 spacer made of?\u003c\/strong\u003e It is made of metal, providing the durability needed to hold up under the constant water exposure and mechanical load of the propeller assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-4228 fit any outboard motor?\u003c\/strong\u003e The 18-4228 prop spacer is designed for Johnson\/Evinrude outboard motors specifically.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-4228 prop spacer weigh?\u003c\/strong\u003e The Sierra 18-4228 weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace other prop hardware along with the spacer?\u003c\/strong\u003e Many installers replace the prop nut and cotter pin at the same time as the 18-4228 spacer since all three are part of the same propeller hardware assembly, though each is a separate Sierra part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spacers come in a package of the 18-4228?\u003c\/strong\u003e The 18-4228 is sold as a single prop spacer, with a unit count of one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-4228 spacer compatible with saltwater use?\u003c\/strong\u003e Yes, the Sierra 18-4228 is recommended for use in salt water conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-4228 prop spacer installed?\u003c\/strong\u003e It is installed on the propeller shaft as part of the standard propeller reassembly sequence, positioned per the outboard's propeller hardware stack.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988171862235,"sku":"SIE-18-4228","price":4.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4228_lg__89515.1558126973.500.750.jpg?v=1785188978"},{"product_id":"sierra-18-4232-prop-spacer-for-johnson-evinrude-omc-outboards-replaces-omc-319890","title":"Sierra Prop Spacer 18-4232, Replaces OMC 323943, for Johnson\/Evinrude Outboard Motors","description":"\u003cp\u003eThe Sierra 18-4232 Prop Spacer is a replacement propeller spacer engineered for Johnson\/Evinrude outboard motors. It is installed on the propeller shaft to properly position the propeller and hub against the thrust washer, ensuring correct spacing and alignment for reliable propeller operation. Built to meet or exceed original equipment quality, this spacer is a direct replacement for the OMC 323943 spacer, making it a straightforward swap when replacing a worn, corroded, or missing prop spacer during propeller service or hardware replacement.\u003c\/p\u003e\u003cp\u003eThis is a small, purpose-built hardware component rather than a multi-piece kit, and it ships as a single spacer per unit. It is intended for buyers who already know their propeller hardware needs replacing and are matching parts by OEM number to ensure correct fitment on Johnson and Evinrude outboards.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4232\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Prop Spacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Prop Nuts \u0026amp; Washers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999237262\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude outboard motors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 323943\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-4232 prop spacer fit?\u003c\/strong\u003e The Sierra 18-4232 prop spacer is designed for Johnson\/Evinrude outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-4232 replace?\u003c\/strong\u003e It replaces OMC 323943, so it is a direct swap for that original equipment prop spacer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4232 prop spacer weigh?\u003c\/strong\u003e This prop spacer weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spacers come in a package?\u003c\/strong\u003e The Sierra 18-4232 is sold as a single spacer, with a unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4232 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket replacement built by Sierra to meet or exceed original equipment quality, cross-referenced to OMC 323943.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the prop spacer installed on an outboard?\u003c\/strong\u003e The 18-4232 is installed on the propeller shaft, positioning the propeller and hub correctly for proper spacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a similar Sierra prop spacer for other applications?\u003c\/strong\u003e Yes, Sierra 18-4231 is a related prop spacer that replaces a different OEM number (320570), so buyers should confirm the correct part number for their application before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-4232 prop spacer?\u003c\/strong\u003e The UPC for this prop spacer is 030999237262.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-4232 spacer fit any outboard brand?\u003c\/strong\u003e No, the Sierra 18-4232 is specifically intended for Johnson\/Evinrude outboard motors, so it should be matched against the OMC 323943 cross-reference before purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace a prop spacer instead of reusing the old one?\u003c\/strong\u003e A worn, corroded, or damaged prop spacer can allow improper propeller positioning, so replacing it with the Sierra 18-4232 restores correct fit against the thrust washer.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988172091611,"sku":"SIE-18-4232","price":5.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4232_lg__68860.1558127219.500.750.jpg?v=1785188161"},{"product_id":"sierra-18-4274-prop-spacer-for-yamaha-outboards-replaces-oem-688-45997-01-00","title":"Sierra 18-4274 Prop Spacer for Yamaha Outboard Motors, Replaces 688-45997-01","description":"\u003cp\u003eThe Sierra 18-4274 Prop Spacer is a machined replacement spacer designed for Yamaha outboard motors, installed on the propeller shaft between the propeller hub and the thrust hub or prop nut hardware. Its role is to maintain correct axial spacing and alignment on the shaft so the propeller seats properly and hardware such as the prop nut and cotter pin can be torqued and secured as intended. Each package includes one prop spacer.\u003c\/p\u003e\u003cp\u003eThis spacer corresponds to Yamaha O.E. Part number 688-45997-01 and is built to meet or exceed the fit and performance of the original equipment part it replaces. The compact, precision-machined design measures 0.39 x 0.39 x 0.39 inches and weighs 0.39 pounds, matching the footprint of the original Yamaha component so it drops into place during routine propeller service or hub replacement.\u003c\/p\u003e\u003cp\u003eSierra is a long-established manufacturer of outboard and sterndrive replacement parts, and this spacer is sold as an individual service part for technicians and boat owners performing propeller maintenance on compatible Yamaha outboard motors.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4274\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Prop Spacer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.39 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Included:\u003c\/strong\u003e 1 spacer per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999976536\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eYamaha outboard motors\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e688-45997-01\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-4274 prop spacer fit?\u003c\/strong\u003e The Sierra 18-4274 prop spacer is designed for Yamaha outboard motors, fitting on the propeller shaft as part of the propeller hub hardware stack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-4274 replace?\u003c\/strong\u003e It replaces Yamaha O.E. Part number 688-45997-01, and is built to meet or exceed the original part's fit and function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spacers come in one package?\u003c\/strong\u003e Each package of the Sierra 18-4274 includes one prop spacer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this prop spacer?\u003c\/strong\u003e The Sierra 18-4274 measures 0.39 x 0.39 x 0.39 inches, a compact size that matches the original Yamaha component it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-4274 prop spacer weigh?\u003c\/strong\u003e This spacer weighs 0.39 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4274 a genuine Yamaha part or an aftermarket part?\u003c\/strong\u003e The 18-4274 is a Sierra-manufactured aftermarket replacement, made to meet or exceed the performance of the original Yamaha 688-45997-01 spacer it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-4274 spacer have?\u003c\/strong\u003e It has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does the prop spacer install on the outboard?\u003c\/strong\u003e The 18-4274 installs on the propeller shaft of a Yamaha outboard, positioned as part of the hub hardware alongside the propeller nut and related fasteners.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-4274 include the prop nut or cotter pin?\u003c\/strong\u003e No, the 18-4274 package contains only the prop spacer itself; the prop nut and cotter pin are separate Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-4274 prop spacer?\u003c\/strong\u003e The UPC for this Sierra prop spacer is 030999976536.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988178350299,"sku":"SIE-18-4274","price":32.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4274_lg__82726.1558127191.500.750.jpg?v=1785188975"},{"product_id":"t-h-marine-g-force-eliminator-trolling-motor-prop-nut-fits-minn-kota-80-101-and-112-series-black-gfel-mk-bk","title":"T-H Marine G-Force Eliminator Prop Nut GFEL-MK-BK, Black, for Minn Kota and MotorGuide Trolling Motors","description":"\u003cp\u003eThe T-H Marine G-Force Eliminator Prop Nut (GFEL-MK-BK) is a billet aluminum replacement prop nut built to make a trolling motor run quieter, cooler, and steadier. It is machined from 6061 billet aluminum with an anodized protective finish, and it uses a specific-durometer O-ring to dampen prop noise and vibration while helping secure the nut in place. A wider contact area stabilizes the prop for a firmer, more consistent mount, and built-in cooling ports aid heat dissipation, which helps extend the operating life of the trolling motor and battery.\u003c\/p\u003e\u003cp\u003eInstallation requires no tools: the factory prop nut and washer are removed first, and if the motor has an anode installed, that must be removed as well before the Eliminator is fitted. The Eliminator is made to fit most Minn Kota and MotorGuide trolling motors and is finished in black to match other G-Force Equalizer trolling motor stabilizer components. Minn Kota Maxxum and Terrova motors require a Weedless Wedge 2 or 3 prop to use this Eliminator. It is not compatible with Kipawa or Hydrilla Hacker props. The G-Force Eliminator is designed and made in the U.S.A.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e T-H Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e GFEL-MK-BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061 Billet Aluminum, Anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5625 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Bow Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Motor Type:\u003c\/strong\u003e Electric Trolling Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign Feature:\u003c\/strong\u003e O-Ring Noise\/Vibration Dampener\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign Feature:\u003c\/strong\u003e Built-In Cooling Ports\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e No Tools Required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMost Minn Kota trolling motors (Maxxum and Terrova require a Weedless Wedge 2 or 3 prop)\u003c\/li\u003e\n\u003cli\u003eMost MotorGuide trolling motors\u003c\/li\u003e\n\u003cli\u003eNot compatible with Kipawa or Hydrilla Hacker props\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the G-Force Eliminator Prop Nut made of?\u003c\/strong\u003e The GFEL-MK-BK is machined from 6061 billet aluminum with an anodized protective finish, which resists corrosion in marine use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this prop nut fit Minn Kota trolling motors?\u003c\/strong\u003e Yes, the GFEL-MK-BK G-Force Eliminator Prop Nut is made to fit most Minn Kota and MotorGuide trolling motors. Minn Kota Maxxum and Terrova motors will need a Weedless Wedge 2 or 3 prop to use it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Eliminator work with a Weedless Wedge prop on a Terrova motor?\u003c\/strong\u003e Yes, but Minn Kota Maxxum and Terrova trolling motors require a Weedless Wedge 2 or 3 prop for the GFEL-MK-BK Eliminator Prop Nut to install correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the prop nut weigh?\u003c\/strong\u003e The G-Force Eliminator Prop Nut (GFEL-MK-BK) weighs 0.5625 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need tools to install the Eliminator Prop Nut?\u003c\/strong\u003e No tools are needed to install the GFEL-MK-BK; it is designed for hand installation once the factory nut and washer are removed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to remove the factory prop nut first?\u003c\/strong\u003e Yes, the factory nut and washer must be removed before installing the GFEL-MK-BK, and any existing anode must also be removed to fit the Eliminator.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this prop nut available in?\u003c\/strong\u003e The GFEL-MK-BK is finished in black, matching other G-Force Equalizer trolling motor stabilizer components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this prop nut compatible with all trolling motor props?\u003c\/strong\u003e The G-Force Eliminator is not compatible with Kipawa or Hydrilla Hacker props, though it fits most standard Minn Kota and MotorGuide props.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the Eliminator Prop Nut reduce noise and vibration?\u003c\/strong\u003e A specific-durometer O-ring inside the GFEL-MK-BK dampens prop noise and vibration while helping secure the nut, and a wider contact area gives the prop a more stable mount.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the prop nut help with trolling motor heat?\u003c\/strong\u003e Yes, the GFEL-MK-BK has built-in cooling ports that act as a heat sink, helping dissipate heat for longer battery and trolling motor life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with this part?\u003c\/strong\u003e The GFEL-MK-BK ships as a single G-Force Eliminator Prop Nut, ready to replace the factory prop nut and washer on a compatible trolling motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the G-Force Eliminator made in the USA?\u003c\/strong\u003e Yes, the GFEL-MK-BK G-Force Eliminator Prop Nut is designed and made in the U.S.A.\u003c\/p\u003e","brand":"T-H Marine","offers":[{"title":"Default Title","offer_id":48991263129819,"sku":"T-H-GFEL-MK-BK-DP","price":71.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/g-force-eliminator-trolling-motor-prop-nut-minn-kota-28507106738219.png?v=1784498543"},{"product_id":"t-h-marine-g-force-eliminator-prop-nut-for-standard-minn-kota-motorguide-trolling-motors-black-billet-aluminum-gfel-mks-bk","title":"T-H Marine G-Force Eliminator Prop Nut GFEL-MKS-BK, Black, for Standard Minn Kota Trolling Motors","description":"\u003cp\u003eThe T-H Marine G-Force Eliminator Prop Nut (GFEL-MKS-BK) replaces the factory prop nut and washer on standard Minn Kota trolling motors to reduce prop noise and vibration while improving cooling. Machined from 6061 billet aluminum and finished with an anodized protective coating, the Eliminator provides a wider contact area than a stock nut, stabilizing the prop for a smoother, quieter ride. A durometer O-ring seated in the nut dampens noise and vibration and helps secure the nut in place, while built-in cooling ports act as a heat sink, drawing heat away from the motor to help extend battery and trolling motor life.\u003c\/p\u003e\u003cp\u003eInstallation requires no tools: simply remove the factory nut and washer (and the anode, if your motor has one) before threading on the Eliminator. It is designed to fit most Minn Kota and Motorguide trolling motors. Note that Minn Kota Maxxum and Terrova trolling motors require a Weedless Wedge 2 or 3 prop in order to use this Eliminator prop nut. This unit is finished in black and is designed and made in the U.S.A.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e T-H Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e GFEL-MKS-BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061 billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.31 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Required for Installation:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits most Minn Kota and Motorguide trolling motors\u003c\/li\u003e\n\u003cli\u003eMinn Kota Maxxum and Terrova trolling motors require a Weedless Wedge 2 or 3 prop to use this Eliminator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the T-H Marine G-Force Eliminator Prop Nut used for?\u003c\/strong\u003e The GFEL-MKS-BK replaces the factory prop nut and washer on a trolling motor to reduce prop noise and vibration while improving heat dissipation around the prop shaft.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat trolling motors does the GFEL-MKS-BK fit?\u003c\/strong\u003e It is designed to fit most Minn Kota and Motorguide trolling motors. Minn Kota Maxxum and Terrova models require a Weedless Wedge 2 or 3 prop to use this Eliminator.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any tools to install this prop nut?\u003c\/strong\u003e No tools are needed to install the G-Force Eliminator; you simply remove the factory nut and washer (and the anode, if equipped) and thread the Eliminator on by hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the anode need to be removed before installing the Eliminator?\u003c\/strong\u003e Yes, if your trolling motor has an anode installed, it must be removed before you can install the GFEL-MKS-BK Eliminator prop nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Eliminator prop nut made from?\u003c\/strong\u003e It is machined from 6061 billet aluminum and finished with an anodized protective coating for corrosion resistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the GFEL-MKS-BK weigh?\u003c\/strong\u003e The T-H Marine G-Force Eliminator Prop Nut weighs 0.31 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the Eliminator reduce prop noise and vibration?\u003c\/strong\u003e A durometer O-ring inside the nut dampens noise and vibration while also helping to secure the nut in place, and the wider contact area stabilizes the prop compared to a stock nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Eliminator help keep the trolling motor cooler?\u003c\/strong\u003e Yes, built-in cooling ports on the GFEL-MKS-BK act as a heat sink, helping draw heat away to support longer battery and trolling motor life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this prop nut available in?\u003c\/strong\u003e The GFEL-MKS-BK is finished in black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace the factory prop nut and washer to install this?\u003c\/strong\u003e Yes, the factory nut and washer must be removed before installing the T-H Marine G-Force Eliminator Prop Nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the Eliminator on a Minn Kota Terrova trolling motor?\u003c\/strong\u003e Yes, but Minn Kota Terrova (along with Maxxum) trolling motors require a Weedless Wedge 2 or 3 prop in order to use the GFEL-MKS-BK Eliminator.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the G-Force Eliminator prop nut made?\u003c\/strong\u003e The T-H Marine G-Force Eliminator Prop Nut is designed and made in the U.S.A.\u003c\/p\u003e","brand":"T-H Marine","offers":[{"title":"Default Title","offer_id":48991263326427,"sku":"T-H-GFEL-MKS-BK-DP","price":71.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/g-force-eliminator-trolling-motor-prop-nut-minn-kota-28507106738219_8225b9d0-5349-41f2-877c-4f3c9439787c.png?v=1784498558"},{"product_id":"bobs-machine-trolling-motor-prop-nut-for-minnkota-motors-80-lbs-and-up-gloss-black","title":"Bob's Machine Trolling Motor Prop Nut for Minnkota Motors 80 lbs. And Up, Gloss Black","description":"\u003cp\u003eThe Bob's Machine Trolling Motor Prop Nut is a balanced, durable replacement prop nut engineered to reduce noise and vibration on trolling motors. It is designed to fit Minnkota trolling motors rated 80 lbs. Thrust and up. Each nut is machined for precision and balance, and carries over 25% more mass than other units on the market, which translates into a noticeably quieter troll.\u003c\/p\u003e\u003cp\u003eA key convenience feature is the tool-free design: the prop nut can be removed by hand, making it fast to clear tangled fishing line or weeds from the propeller while on the water, or to swap propellers without carrying tools. The nut also includes a center hole that gives access to the shaft in the event of shear-pin failure, so troubleshooting a stalled prop does not require full disassembly.\u003c\/p\u003e\u003cp\u003eThe finish is a gloss black powder coat that is bright and durable, standing up to on-water use while keeping a clean look on the lower unit. This prop nut is made in the USA and is sold exclusively under the Bob's Machine brand.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Bob's Machine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 312-000001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gloss Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Powder Coat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Minnkota trolling motors 80 lbs. And up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Required for Removal:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 818377010597\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMinnkota trolling motors, 80 lbs. Thrust and up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat trolling motors does the Bob's Machine 312-000001 prop nut fit?\u003c\/strong\u003e The 312-000001 prop nut is designed to fit Minnkota trolling motors rated 80 lbs. Of thrust and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need tools to remove this prop nut?\u003c\/strong\u003e No tools are required. The Bob's Machine Trolling Motor Prop Nut is designed to be removed by hand, making it easy to clear fishing line or weeds, or to swap propellers while on the water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and finish does this prop nut have?\u003c\/strong\u003e It has a gloss black powder coat finish that is bright and durable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this prop nut made of?\u003c\/strong\u003e The Bob's Machine 312-000001 prop nut is made of alloy steel and stainless steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Bob's Machine 312-000001 prop nut weigh?\u003c\/strong\u003e This prop nut weighs 2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does this prop nut have a center hole?\u003c\/strong\u003e The center hole in the Bob's Machine prop nut allows access to the propeller shaft in the event of shear-pin failure, so the shaft can be reached without full disassembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this prop nut louder or quieter than other trolling motor prop nuts?\u003c\/strong\u003e The Bob's Machine 312-000001 has over 25% more mass than other units on the market, which results in quieter trolling compared to lighter-mass prop nuts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is this prop nut manufactured?\u003c\/strong\u003e The Bob's Machine Trolling Motor Prop Nut is made in the USA.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this prop nut balanced for smooth operation?\u003c\/strong\u003e Yes, the 312-000001 prop nut is balanced and durable, engineered to reduce noise and vibration from the trolling motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this prop nut on any trolling motor?\u003c\/strong\u003e This prop nut is specifically designed for Minnkota trolling motors with 80 lbs. Of thrust or more; it is not intended for lower-thrust motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes with the Bob's Machine 312-000001 prop nut?\u003c\/strong\u003e The product is the prop nut itself, sold individually with its gloss black powder coat finish.\u003c\/p\u003e","brand":"Bob's Machine Shop","offers":[{"title":"Default Title","offer_id":49027466330331,"sku":"BOB-312-000001","price":48.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Prop-Nut__95600.1722517659.500.750.jpg?v=1785163493"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/SIE-18-3741-9__29460.1737842263.500.750.jpg?v=1785356958","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-propellers-drive-lower-unit-propellers-prop-nuts-washers-spacers.oembed?page=2","provider":"Good Vibes Marina","version":"1.0","type":"link"}