{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3726-brass-prop-nut-for-suzuki-dt75-140-df60-70-v-style-outboards-replaces-09141-18005","provider":"Good Vibes Marina","version":"1.0","type":"link"}