{"title":"Exhaust Hoses \u0026 Tubes","description":null,"products":[{"product_id":"sierra-shieldsflex-ii-marine-water-exhaust-hose-with-wire-available-in-5-8-to-3-id","title":"Sierra Shieldsflex II Marine Water\/Exhaust Hose - Available in 5\/8\" to 3\" ID","description":"\u003cp\u003eSierra Shieldsflex II is a wire-reinforced marine water and exhaust hose built for runs where bends or long lengths are required. It has a black synthetic rubber tube and cover reinforced with a wire helix embedded between plies of heavy-duty synthetic cord, keeping the hose round and kink-resistant through tight routing. It is used for engine intake, bilge pump intake and discharge, scupper lines, wet exhaust connections, toilet intake and discharge, and holding tank vent or pump-out lines aboard boats. The hose resists exhaust fumes, ozone, mild chemicals, antifreeze, and saltwater, and its cover is abrasion and odor permeation resistant. It handles a continuous temperature range of -20 F to +200 F, with intermittent spikes to +250 F, and meets SAE J2006 Type R2 standards with double the ozone resistance the standard requires. Working pressure is rated at 75 PSI with a 220 PSI burst pressure, and the bend radius is 5 times the hose's inside diameter, letting it curve through tight engine compartments and bilges without collapsing. This line is available in inside diameters from 5\/8 inch up to 3 inches, in lengths from 6 1\/4 feet up to 25 feet on a carton reel for the 1 1\/4 inch size, so it covers everything from short exhaust jumpers to long intake or discharge runs.\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 16-250\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Marine water\/exhaust hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic rubber tube and cover reinforced with wire helix between plies of HD synthetic cord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePly:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter (ID) Options:\u003c\/strong\u003e 5\/8 inch, 3\/4 inch, 1 inch, 1 1\/4 inch, 2 inch, 3 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter (OD) by Size:\u003c\/strong\u003e 5\/8 inch ID: 61\/64 inch OD; 3\/4 inch ID: 1 1\/16 inch OD; 1 inch ID: 1 5\/16 inch OD; 1 1\/4 inch ID: 1 19\/32 inch OD; 2 inch ID: 2 13\/32 inch OD; 3 inch ID: 3.44 inches OD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Options:\u003c\/strong\u003e 6 1\/4 feet, 10 feet, 12 1\/2 feet, 25 feet (carton)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBend Radius:\u003c\/strong\u003e 5 x inside diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurst Pressure:\u003c\/strong\u003e 220 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Pressure:\u003c\/strong\u003e 75 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e -20 F to +200 F continuous, +250 F intermittent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards Compliance:\u003c\/strong\u003e Meets SAE J2006 Type R2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Uses:\u003c\/strong\u003e Engine intake, bilge pump intake\/discharge, scupper lines, wet exhaust connections, toilet intake\/discharge, holding tank vent\/pump-out\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose your inside diameter first to match the fitting, thru-hull, or exhaust outlet the hose connects to, then choose the length needed for the full run, adding extra where the hose will bend. The 1 1\/4 inch size is offered in both a 10 foot length and a 25 foot carton for longer runs; other sizes are offered in a single length as listed. Measure your existing hose or connection before ordering to confirm the correct inside diameter.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra Shieldsflex II hose come in?\u003c\/strong\u003e The Shieldsflex II line spans inside diameters from 5\/8 inch up to 3 inches, so match it to the fitting or thru-hull it will connect to before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which length to order?\u003c\/strong\u003e Lengths run from 6 1\/4 feet up to 25 feet on a carton reel for the 1 1\/4 inch size. Measure the full run of the intake, exhaust, or discharge line and add extra where the hose will bend, since Shieldsflex II is designed for runs that require bends or long lengths.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this hose used for?\u003c\/strong\u003e Sierra Shieldsflex II is used for engine intake, bilge pump intake and discharge, scupper lines, wet exhaust connections, toilet intake and discharge, and holding tank vent or pump-out lines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the hose reinforced or will it collapse on tight bends?\u003c\/strong\u003e A wire helix is embedded between plies of heavy-duty synthetic cord in Shieldsflex II, which keeps the hose round and kink-resistant even when routed through tight bends with a bend radius of 5 times its inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat temperatures can it handle?\u003c\/strong\u003e 20 F to +200 F continuously, with intermittent spikes up to +250 F, which is the rated range for the Sierra Shieldsflex II hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat pressure is the hose rated for?\u003c\/strong\u003e 220 PSI burst pressure and 75 PSI working pressure are the ratings for this Shieldsflex II hose line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the hose made of?\u003c\/strong\u003e A black synthetic rubber tube and cover, resistant to exhaust fumes, ozone, mild chemicals, antifreeze, and saltwater, makes up the Sierra Shieldsflex II hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose meet any industry standards?\u003c\/strong\u003e Yes, Shieldsflex II meets SAE J2006 Type R2 standards, with double the ozone resistance that standard requires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's the difference between the 6 1\/4 foot and 10 foot options?\u003c\/strong\u003e They are the same hose construction cut to different lengths; choose the length based on the total run you need to cover, since Sierra offers Shieldsflex II in multiple lengths per size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used for exhaust runs with bends?\u003c\/strong\u003e Yes, Shieldsflex II is specifically built for wet exhaust connections where bends or long lengths are required, unlike a rigid exhaust hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 3 inch size available in a long length like the smaller sizes?\u003c\/strong\u003e The 3 inch Shieldsflex II hose is offered in a 6 1\/4 foot length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the hose?\u003c\/strong\u003e Sierra Shieldsflex II hose has a black synthetic rubber tube and cover.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"3\/4\" \/ 6 1\/4'","offer_id":48988025749723,"sku":"SIE-16-250-0341","price":42.12,"currency_code":"USD","in_stock":true},{"title":"5\/8\" \/ 10'","offer_id":48988025782491,"sku":"SIE-16-250-0583","price":63.14,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 6 1\/4'","offer_id":48988025815259,"sku":"SIE-16-250-1001","price":45.77,"currency_code":"USD","in_stock":true},{"title":"1 1\/4\" \/ 10'","offer_id":48988025848027,"sku":"SIE-16-250-1143","price":74.84,"currency_code":"USD","in_stock":true},{"title":"1 1\/4\" \/ 25' Carton","offer_id":48988025880795,"sku":"SIE-16-250-1145","price":181.21,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 12 1\/2'","offer_id":48988025913563,"sku":"SIE-16-250-2004","price":131.3,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 6 1\/4'","offer_id":48988025946331,"sku":"SIE-116-250-3001","price":111.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/ShieldsFlex__82759.1784651535.500.750.jpg?v=1785188900"},{"product_id":"sierra-exhaust-hose-t-bolt-band-clamp-available-in-2-to-6-id-series-200-250","title":"Sierra T-Bolt Band Clamp for Marine Exhaust Hose - Available in 2\" and 6\" ID","description":"\u003cp\u003eThis Sierra T-Bolt Band Clamp is a heavy-duty stainless steel clamp built to secure marine exhaust hose in below-the-waterline applications. It is designed to fit Shields Series 200 and 250 exhaust hose, with the larger size also suited to Series 202 silicone hose. The band is 316 stainless steel,.025 inch thick and.75 inch wide, chosen for its resistance to corrosion in wet, salt-exposed engine and exhaust environments. The bolt, nut, and trunion are 18-8 (304) stainless steel, and each clamp includes an extra-long 1\/4 inch bolt paired with a nylon insert locknut to resist vibration loosening over time. Each clamp carries a maximum torque rating of 75 inch-pounds, which should not be exceeded during installation to avoid damaging the hose or band.\u003c\/p\u003e\u003cp\u003eThis T-Bolt clamp line is sold as a single product family covering two inside-diameter sizes so boat owners can match the clamp to their exhaust hose without hunting through separate listings. Use it anywhere a standard worm-gear clamp is not robust enough, such as securing large-diameter exhaust hose to risers, mufflers, or through-hull fittings below the waterline.\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 18-720\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 316 stainless steel band; 18-8 (304) stainless steel bolt, nut, and trunion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Thickness:\u003c\/strong\u003e 0.025 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand Width:\u003c\/strong\u003e 0.75 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt:\u003c\/strong\u003e Extra-long 1\/4 inch bolt with nylon insert locknut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Torque:\u003c\/strong\u003e 75 inch-pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Shields Series 200 and 250 hose (Series 202 silicone hose for the 6 inch size)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Below-the-waterline marine exhaust hose connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 2 inch ID, 6 inch ID\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the clamp by the inside diameter (ID) of the exhaust hose it will secure. The 2 inch clamp fits a diameter range of 2.27-2.67 inches and is intended for 2 inch ID hose. The 6 inch clamp fits a diameter range of 6.38-7.04 inches and is intended for 6 inch ID hose. Measure the outside diameter of the hose at the clamping point and select the size whose range matches your measurement.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat sizes does the Sierra T-Bolt Band Clamp come in?\u003c\/strong\u003e This clamp line comes in two sizes: a 2 inch ID clamp (Sierra 18-720-2000) that fits a diameter range of 2.27-2.67 inches, and a 6 inch ID clamp (Sierra 18-720-6000) that fits a diameter range of 6.38-7.04 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hose does this clamp fit?\u003c\/strong\u003e The Sierra 18-720 T-Bolt Band Clamp is designed to fit Shields Series 200 and 250 exhaust hose, and the 6 inch size additionally fits Series 202 silicone hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this clamp safe to use below the waterline?\u003c\/strong\u003e Yes, the Sierra 18-720 T-Bolt Band Clamp is specifically designed for below-the-waterline exhaust hose applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the band made of?\u003c\/strong\u003e The band on this Sierra T-Bolt clamp is 316 stainless steel, 0.025 inch thick and 0.75 inch wide, chosen for corrosion resistance in wet marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hardware comes with the clamp?\u003c\/strong\u003e Each Sierra 18-720 clamp includes an extra-long 1\/4 inch bolt and a nylon insert locknut, with the bolt, nut, and trunion made of 18-8 (304) stainless steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much torque should I apply when tightening this clamp?\u003c\/strong\u003e The maximum torque rating for the Sierra 18-720 T-Bolt Band Clamp is 75 inch-pounds; exceeding this can damage the hose or band.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know which size clamp to order?\u003c\/strong\u003e Measure the outside diameter of the exhaust hose at the clamping point: choose the 2 inch clamp (18-720-2000) for a 2.27-2.67 inch diameter, or the 6 inch clamp (18-720-6000) for a 6.38-7.04 inch diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, both the 18-720-2000 and 18-720-6000 clamps are genuine Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the two clamp sizes besides diameter?\u003c\/strong\u003e Beyond the ID and clamping diameter range, the two sizes in the 18-720 line differ in overall band dimension (\"C\" measurement), which is larger on the 6 inch clamp (18-720-6000) than on the 2 inch clamp (18-720-2000) to match the larger hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this clamp be used for anything other than exhaust hose?\u003c\/strong\u003e The Sierra 18-720 T-Bolt Band Clamp is designed as an exhaust hose clamp for below-the-waterline applications, matched to Shields Series 200, 250, and (on the 6 inch size) 202 hose.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"2\" ID","offer_id":48988031189211,"sku":"SIE-18-720-2000","price":9.82,"currency_code":"USD","in_stock":true},{"title":"6\" ID","offer_id":48988031221979,"sku":"SIE-118-720-6000","price":13.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sierra_lg_949__26559__74879.1772547083.500.750.jpg?v=1785189133"},{"product_id":"sierra-18-2760-exhaust-tube-replaces-mercruiser-78458a1-for-mercruiser-1-and-bravo-i-ii-iii-sterndrives","title":"Sierra 18-2760 Exhaust Tube - Replaces Mercruiser 78458A1, Fits Bravo I\/II\/III 1988 \u0026 Newer","description":"\u003cp\u003eThe Sierra 18-2760 Exhaust Tube is a machined replacement exhaust tube built for Mercruiser Bravo I, II, and III sterndrives. It directs exhaust flow through the drive unit and is manufactured to meet or exceed the fit, form, and function of the original equipment part it replaces. The tube ships with an 18-7314 clamp included, so the hardware needed for a proper connection is in the box.\u003c\/p\u003e\u003cp\u003eThis part is designed as a direct interchange for Mercruiser 78458A1 and 78458, as well as GLM 89150 and Mallory 9-72810, giving installers flexibility when sourcing a replacement for aging or corroded exhaust tubes. The exterior finish is machined for a consistent fit against mating exhaust components. At a compact 0.39 x 0.39 x 0.39 inches and 0.38 pounds, it is sized specifically for the Bravo I\/II\/III exhaust bellows connection point.\u003c\/p\u003e\u003cp\u003eFitment covers Bravo I, II, and III drives from 1988 and newer with serial number 0B664190 and up, as well as Blackhawk drives from 1994-1995 with serial number 0F18677 and up. Confirm the drive 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 18-2760\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.38 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\u003eIncluded Hardware:\u003c\/strong\u003e 18-7314 clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999313003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e Mercruiser 78458A1, Mercruiser 78458, GLM 89150, Mallory 9-72810\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBravo I\/II\/III, 1988 \u0026amp; Newer, serial number 0B664190 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003eBlackhawk, 1994-1995, serial number 0F18677 \u0026amp; Up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser 78458A1\u003c\/li\u003e\n\u003cli\u003eMercruiser 78458\u003c\/li\u003e\n\u003cli\u003eGLM 89150\u003c\/li\u003e\n\u003cli\u003eMallory 9-72810\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2760 Exhaust Tube fit?\u003c\/strong\u003e It fits Mercruiser Bravo I, II, and III sterndrives built 1988 and newer with serial number 0B664190 and up, and Blackhawk drives from 1994-1995 with serial number 0F18677 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2760 a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-2760 is a Sierra-manufactured replacement part, built to meet or exceed the original equipment exhaust tube it replaces rather than being a Mercruiser-branded OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-2760 replace?\u003c\/strong\u003e The Sierra 18-2760 Exhaust Tube is designed to interchange with Mercruiser 78458A1 and 78458, GLM 89150, and Mallory 9-72810.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2760 exhaust tube come with a clamp?\u003c\/strong\u003e Yes, the Sierra 18-2760 ships with an 18-7314 clamp included, so no separate clamp purchase is needed for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2760 Exhaust Tube weigh?\u003c\/strong\u003e The Sierra 18-2760 Exhaust Tube weighs 0.38 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-2760 exhaust tube?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material or finish does the 18-2760 have?\u003c\/strong\u003e The Sierra 18-2760 has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2760 fit a Bravo drive older than 1988?\u003c\/strong\u003e No, the Sierra 18-2760 is specified for Bravo I\/II\/III drives from 1988 and newer with serial number 0B664190 and up; drives outside that serial range are not confirmed fitments for this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-2760 be used on a Blackhawk drive?\u003c\/strong\u003e Yes, the 18-2760 fits Blackhawk drives from 1994-1995 with serial number 0F18677 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2760 covered by a warranty?\u003c\/strong\u003e The Sierra 18-2760 Exhaust Tube is covered under Sierra's standard customer satisfaction warranty that applies to its parts.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988111798491,"sku":"SIE-18-2760","price":50.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2760_lg__70560.1729092953.500.750.jpg?v=1785188338"},{"product_id":"sierra-18-2759-exhaust-tube-for-mercruiser-120-140-160-165-inline-6-replaces-53114a1","title":"Sierra Exhaust Tube 18-2759, Replaces Mercruiser 53114A1, Fits MCM 120\/140\/160\/165 In-Line 6 Cylinder Engines","description":"\u003cp\u003eThe Sierra 18-2759 Exhaust Tube is a bolt-on replacement exhaust tube built for Mercruiser In-Line 6 Cylinder stern drive engines, including the MCM 120, 140, 160, and 165 models. It routes exhaust gases away from the engine as part of the exhaust water shutter and exhaust tube system, and is manufactured to meet or exceed the specifications of the original equipment part it replaces. The tube has a round shape and a white finish, and is designed for a direct bolt-on installation without modification to surrounding components.\u003c\/p\u003e\u003cp\u003eEach package includes one exhaust tube. Sierra designs this part as a like-for-like replacement for OEM and other aftermarket exhaust tubes used on the same engine applications, and it is cross-referenced to GLM, Mallory, and Mercruiser part numbers for buyers replacing an existing tube. Because fitment is specific to certain MerCruiser In-Line 6 Cylinder engine models, buyers should confirm their engine model against the fitment list below 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 18-2759\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser MCM 120, 140, 160 (In-Line 6 Cylinder), 165 (In-Line 6 Cylinder)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e Mercury Marine 53114A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999312990\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser MCM 120\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM 140\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM 160 (In-Line 6 Cylinder)\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM 165 (In-Line 6 Cylinder)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 89060\u003c\/li\u003e\n\u003cli\u003eMallory 9-72807\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 53114\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 53114A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-2759 exhaust tube fit?\u003c\/strong\u003e The Sierra 18-2759 is built for Mercruiser MCM 120, 140, 160, and 165 engines, with the 160 and 165 specified for the In-Line 6 Cylinder configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2759 a direct OEM replacement or an aftermarket part?\u003c\/strong\u003e It is an aftermarket exhaust tube manufactured by Sierra to meet or exceed the specifications of the original Mercruiser part, and it is designed as a bolt-on replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-2759 exhaust tube replace?\u003c\/strong\u003e The 18-2759 replaces GLM 89060, Mallory 9-72807, and Mercruiser Stern Drive part numbers 53114 and 53114A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2759 exhaust tube weigh?\u003c\/strong\u003e The Sierra 18-2759 exhaust tube weighs 1.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many exhaust tubes come in one package?\u003c\/strong\u003e One exhaust tube is included per package of the Sierra 18-2759.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color and shape is the 18-2759 exhaust tube?\u003c\/strong\u003e The Sierra 18-2759 has a round shape and a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2759 exhaust tube require modification to install?\u003c\/strong\u003e No, the 18-2759 is a bolt-on installation type, designed to fit in place of the original exhaust tube without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2759 fit any Mercruiser stern drive engine?\u003c\/strong\u003e No, fitment is specific to the MCM 120, 140, 160 (In-Line 6 Cylinder), and 165 (In-Line 6 Cylinder) engines, so buyers should confirm their exact engine model before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2759 covered by a warranty?\u003c\/strong\u003e Yes, the 18-2759 is covered under Sierra's standard limited warranty as a genuine Sierra manufactured part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2759 exhaust tube?\u003c\/strong\u003e The UPC for the Sierra 18-2759 exhaust tube is 030999312990.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Mallory 9-72807 related to the Sierra 18-2759?\u003c\/strong\u003e Mallory 9-72807 is one of the cross-reference numbers the 18-2759 replaces, meaning the Sierra part is interchangeable with that Mallory exhaust tube.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988111929563,"sku":"SIE-18-2759","price":53.77,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2759_lg__97338.1558124755.500.750.jpg?v=1785188950"},{"product_id":"sierra-18-2761-exhaust-tube-3-i-d-replaces-mercruiser-32-90949t-fits-mercruiser-470-485-185-205-898-228-260","title":"Sierra Exhaust Tube, 3 Inch I.D., Replaces 32-90949T, Fits MerCruiser 470\/485 898 260 Engines","description":"\u003cp\u003eThis Sierra Exhaust Tube is a direct-fit replacement exhaust tube built for MerCruiser stern drive engines that route exhaust through a 3 inch inside diameter tube. It is designed to install in place of the original equipment exhaust tube, carrying hot exhaust gases away from the engine as part of the exhaust and water shutter system. The tube has a round profile and a white finish, and each package contains one exhaust tube.\u003c\/p\u003e\u003cp\u003eThis part is intended for MerCruiser MCM 470\/485, 185, 205, 898, 228, and 260 engines. It is a direct cross-reference for Mercury Marine 32-90949 and 32-90949T exhaust tubes, so it installs using the same mounting points and bolt pattern as the original part it replaces. Sierra manufactures its marine parts to meet or exceed the specifications of the original equipment part, and this exhaust tube is backed by Sierra's standard limited 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 18-2761\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 3 inches (762 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.57 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999313010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 exhaust tube per package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits MerCruiser MCM 470\/485, 185, 205, 898, 228, and 260 engines.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eReplaces Mercury Marine 32-90949 and 32-90949T.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of the Sierra 18-2761 exhaust tube?\u003c\/strong\u003e The Sierra 18-2761 exhaust tube has a 3 inch inside diameter (762 mm).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich MerCruiser engines does this exhaust tube fit?\u003c\/strong\u003e The Sierra 18-2761 is designed for MerCruiser MCM 470\/485, 185, 205, 898, 228, and 260 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes part number 18-2761 replace Mercury Marine 32-90949T?\u003c\/strong\u003e Yes, Sierra 18-2761 is a direct cross-reference for Mercury Marine 32-90949 and 32-90949T exhaust tubes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many exhaust tubes are included in the package?\u003c\/strong\u003e One exhaust tube is included per package with part number 18-2761.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2761 exhaust tube?\u003c\/strong\u003e It is white, with a round cross-section matching the original equipment exhaust tube shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2761 exhaust tube weigh?\u003c\/strong\u003e The Sierra 18-2761 exhaust tube weighs 0.57 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2761 an OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra aftermarket replacement exhaust tube, manufactured to meet or exceed the specifications of the original Mercury Marine 32-90949\/32-90949T part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat installation type does this exhaust tube use?\u003c\/strong\u003e The 18-2761 exhaust tube uses a bolt-on installation type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2761 exhaust tube covered by a warranty?\u003c\/strong\u003e Yes, this Sierra exhaust tube is covered under Sierra's standard limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2761 exhaust tube?\u003c\/strong\u003e The UPC for the Sierra 18-2761 exhaust tube is 030999313010.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2761 exhaust tube fit engines other than the listed MerCruiser models?\u003c\/strong\u003e This exhaust tube is fit-specific to MerCruiser MCM 470\/485, 185, 205, 898, 228, and 260 engines; part numbers should be checked to confirm proper fit before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988112027867,"sku":"SIE-18-2761","price":45.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__36302.1771370439.500.750.jpg?v=1785188351"},{"product_id":"sierra-18-2762-exhaust-tube-replaces-mercury-70981a3-fits-mercruiser-1-alpha-one-bravo-i-ii-iii-sterndrives","title":"Sierra Exhaust Tube 18-2762, Replaces Mercury Marine 70981, 70981A3","description":"\u003cp\u003eThe Sierra 18-2762 is a round, black exhaust tube built as a direct replacement for the original equipment exhaust tube used in Mercury Marine stern drive exhaust systems. It is engineered to Sierra's standard of meeting or exceeding the specifications of the original equipment part it replaces, so it holds up to the sustained heat, saltwater exposure, and vibration found in a marine exhaust path. The tube uses a bolt-on installation type, making it a straightforward swap when an original tube has cracked, corroded, or otherwise failed.\u003c\/p\u003e\u003cp\u003eEach package includes one exhaust tube. The part is manufactured in Taiwan and is sold under the Sierra brand, part number 18-2762, which directly replaces the Mercury Marine 70981 and 70981A3 exhaust tubes.\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 18-2762\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Water Shutter \u0026amp; Exhaust Tubes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.76 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Taiwan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Exhaust Tube (1 per package)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 70981, 70981A3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDirect replacement for Mercury Marine exhaust tubes 70981 and 70981A3.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e70981\u003c\/li\u003e\n\u003cli\u003e70981A3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2762 exhaust tube replace?\u003c\/strong\u003e The Sierra 18-2762 is a direct replacement for Mercury Marine exhaust tubes 70981 and 70981A3.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many exhaust tubes come in the package?\u003c\/strong\u003e One exhaust tube is included per package of the Sierra 18-2762.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-2762 exhaust tube?\u003c\/strong\u003e It is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the Sierra 18-2762 exhaust tube?\u003c\/strong\u003e It has a round shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-2762 exhaust tube installed?\u003c\/strong\u003e The Sierra 18-2762 uses a bolt-on installation type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2762 exhaust tube weigh?\u003c\/strong\u003e The Sierra 18-2762 exhaust tube weighs 0.76 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-2762 exhaust tube manufactured?\u003c\/strong\u003e The country of origin for the Sierra 18-2762 exhaust tube is Taiwan.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2762 a genuine Mercury Marine part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-branded aftermarket exhaust tube engineered to meet or exceed the specifications of the original Mercury Marine 70981 and 70981A3 exhaust tubes it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2762 the same part as the Sierra 18-2761 or 18-2770 exhaust tubes?\u003c\/strong\u003e No, 18-2761 and 18-2770 are separate Sierra part numbers with their own OEM cross-references; the 18-2762 is a distinct exhaust tube that replaces Mercury Marine 70981 and 70981A3 specifically.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of Mercruiser part is the 18-2762?\u003c\/strong\u003e The Sierra 18-2762 is categorized under Mercruiser water shutter and exhaust tubes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2762 exhaust tube hold up in a marine exhaust environment?\u003c\/strong\u003e Yes, Sierra designs the 18-2762 exhaust tube to meet or exceed the original equipment part's performance under the heat and saltwater exposure typical of marine exhaust systems.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988112093403,"sku":"SIE-18-2762","price":39.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2762_lg__59502.1558124947.500.750.jpg?v=1785188136"},{"product_id":"sierra-18-2766-marine-exhaust-hose-replaces-volvo-834751-95mm-id-x-160mm-fits-volvo-penta-v-8","title":"Sierra Exhaust Hose, Replaces Volvo Penta 834751, 95mm ID x 160mm Length, V-8 Engines","description":"\u003cp\u003eThe Sierra 18-2766 exhaust hose is a marine exhaust hose section built to fit Volvo Penta V-8 engine exhaust systems. It measures 95mm inside diameter by 160mm in length and is engineered to directly replace Volvo Penta OEM exhaust hose part number 834751. This hose is used to route exhaust gases away from the engine as part of the marine exhaust system, and its dimensions are matched to the OEM specification so it installs in place of the original hose without modification. At 1.05 pounds, it is a straightforward, compact replacement part suited to routine maintenance or repair of a Volvo Penta V-8 exhaust run. Order using Sierra part number 18-2766 or by cross-referencing OEM number 834751 to confirm fitment for your engine.\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 18-2766\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 95 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 160 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e V-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.05 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 834751\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eVolvo Penta V-8 marine engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e834751\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of the Sierra 18-2766 exhaust hose?\u003c\/strong\u003e The Sierra 18-2766 exhaust hose has a 95mm inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the Sierra 18-2766 exhaust hose?\u003c\/strong\u003e This hose section measures 160mm in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2766 replace Volvo Penta part 834751?\u003c\/strong\u003e Yes, Sierra 18-2766 is a direct replacement for Volvo Penta OEM part number 834751.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is this exhaust hose designed for?\u003c\/strong\u003e It is specified for Volvo Penta V-8 marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the exhaust hose weigh?\u003c\/strong\u003e The Sierra 18-2766 exhaust hose weighs 1.05 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2766 still in production?\u003c\/strong\u003e Yes, this exhaust hose is not discontinued and remains currently available from Sierra.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket replacement?\u003c\/strong\u003e The 18-2766 is a Sierra-branded replacement hose built to match the dimensions of Volvo Penta OEM part 834751.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes with an order of part 18-2766?\u003c\/strong\u003e Ordering Sierra 18-2766 gets you one exhaust hose section measuring 95mm ID by 160mm in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat part number should I search for to find this hose?\u003c\/strong\u003e Look up Sierra 18-2766 or cross-reference Volvo Penta OEM number 834751 to locate this exhaust hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose fit engines other than a Volvo Penta V-8?\u003c\/strong\u003e Sierra 18-2766 is specified for Volvo Penta V-8 engines; confirm against OEM number 834751 before using it on any other application.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988112224475,"sku":"SIE-18-2766","price":70.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2766_lg__85025.1558125244.500.750.jpg?v=1785188479"},{"product_id":"sierra-18-2770-exhaust-tube-for-mercruiser-replaces-oem-32-807458t-mallory-9-72804","title":"Sierra 18-2770 Exhaust Tube - Replaces Mercury Marine 32-807458T","description":"\u003cp\u003eThe Sierra 18-2770 Exhaust Tube is a direct-fit replacement exhaust tube built to meet or exceed original equipment quality. It is manufactured to function as a drop-in equivalent for the original Mercury Marine exhaust tube it replaces, giving boat owners a reliable way to restore proper exhaust routing without sourcing a discontinued OEM part. The tube is round in shape with a white finish and uses a bolt-on installation, so it mounts using the existing hardware and mating surfaces on the engine's exhaust system. Each unit ships as a single tube, ready to install in place of the original component.\u003c\/p\u003e\u003cp\u003eSierra manufactures its marine parts to consistent quality standards so that fit, form, and function match what the boat came with from the factory. The 18-2770 Exhaust Tube carries the Sierra part number 18-2770 and is cross-referenced to Mercury Marine part 32-807458T, making it easy to identify as the correct replacement when the OEM number is all you have to go on. It is a straightforward maintenance item for boat owners replacing a cracked, corroded, or leaking exhaust tube.\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 18-2770\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.99 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282101084\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-807458T\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 32-807458T\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2770 Exhaust Tube replace?\u003c\/strong\u003e It replaces Mercury Marine part number 32-807458T, so any boat calling for that original equipment exhaust tube can use the Sierra 18-2770 instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2770 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-2770 is an aftermarket part manufactured by Sierra to meet or exceed the quality of the original Mercury Marine 32-807458T exhaust tube it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2770 Exhaust Tube weigh?\u003c\/strong\u003e The Sierra 18-2770 Exhaust Tube weighs 0.99 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2770 Exhaust Tube?\u003c\/strong\u003e It is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is this exhaust tube?\u003c\/strong\u003e The Sierra 18-2770 has a round shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the Sierra 18-2770 Exhaust Tube installed?\u003c\/strong\u003e It uses a bolt-on installation type, mounting in place of the original Mercury Marine 32-807458T tube using the existing engine hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many exhaust tubes come in the package?\u003c\/strong\u003e One Sierra 18-2770 Exhaust Tube is included per unit purchased.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-2770 perform the same as the original Mercury Marine part?\u003c\/strong\u003e Yes. Sierra builds the 18-2770 to meet or exceed the quality of the original equipment part it replaces, so it is designed to fit and function the same as Mercury Marine 32-807458T.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2770 Exhaust Tube?\u003c\/strong\u003e The UPC for the Sierra 18-2770 Exhaust Tube is 808282101084.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this exhaust tube?\u003c\/strong\u003e A cracked, corroded, or leaking exhaust tube on a system that originally used Mercury Marine part 32-807458T is the typical reason to install a Sierra 18-2770.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988112715995,"sku":"SIE-18-2770","price":77.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2770__99794.1722488183.500.750.jpg?v=1785188446"},{"product_id":"sierra-18-2779-marine-exhaust-hose-4-inch-i-d-replaces-volvo-penta-omc-3852696-fits-volvo-penta-4-3l-8-2l-stern-drives","title":"Sierra 18-2779 Exhaust Hose, 4 Inch I.D., Replaces Volvo Penta\/OMC 3852696, for Volvo Penta Stern Drives","description":"\u003cp\u003eThe Sierra 18-2779 Exhaust Hose is a marine exhaust hose built for Volvo Penta stern drive engines, carrying exhaust gases and cooling water away from the engine through the exhaust system. It has a 4 inch inner diameter and is engineered to meet or exceed the performance of the original equipment part it replaces. Each package includes one exhaust hose.\u003c\/p\u003e\u003cp\u003eThis hose is designed for use with Volvo Penta 4.3L GL, GS, GI, GXI, OSI; 5.0L FI, GL, FL, GXI, OSI; 5.7L GL, GI, GIL, OSI, GXI, OSXI; 5.8L FL, FI, FSI; 7.4L GL, GI; 8.1L GI, GXI, OSI; and 8.2L GL stern drives, and it directly replaces the OEM Volvo Penta\/OMC exhaust hose part number 3852696. Because exhaust hose fitment is engine and model specific, buyers should confirm their engine model and cross-reference part numbers before ordering to ensure proper 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 18-2779\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 3852696\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.58 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\u003eUPC:\u003c\/strong\u003e 808282124694\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 exhaust hose per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Volvo Penta 4.3L GL, GS, GI, GXI, OSI; 5.0L FI, GL, FL, GXI, OSI; 5.7L GL, GI, GIL, OSI, GXI, OSXI; 5.8L FL, FI, FSI; 7.4L GL, GI; 8.1L GI, GXI, OSI; 8.2L GL stern drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eVolvo Penta 4.3L GL, GS, GI, GXI, OSI; 5.0L FI, GL, FL, GXI, OSI; 5.7L GL, GI, GIL, OSI, GXI, OSXI; 5.8L FL, FI, FSI; 7.4L GL, GI; 8.1L GI, GXI, OSI; and 8.2L GL stern drives.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3852696\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inner diameter of the Sierra 18-2779 exhaust hose?\u003c\/strong\u003e The Sierra 18-2779 has a 4 inch inner diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part does this hose replace?\u003c\/strong\u003e Part number 18-2779 replaces OEM Volvo Penta\/OMC part number 3852696.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-2779 exhaust hose designed for?\u003c\/strong\u003e It is designed for Volvo Penta 4.3L GL, GS, GI, GXI, OSI; 5.0L FI, GL, FL, GXI, OSI; 5.7L GL, GI, GIL, OSI, GXI, OSXI; 5.8L FL, FI, FSI; 7.4L GL, GI; 8.1L GI, GXI, OSI; and 8.2L GL stern drive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in one package of the Sierra 18-2779?\u003c\/strong\u003e One exhaust hose is included per package of part 18-2779.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2779 exhaust hose weigh?\u003c\/strong\u003e It weighs 0.58 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2779 a genuine Volvo Penta part or an aftermarket equivalent?\u003c\/strong\u003e The 18-2779 is a Sierra aftermarket exhaust hose engineered to meet or exceed the performance of the original Volvo Penta\/OMC part 3852696 that it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2779 fit any 4 inch marine exhaust hose application?\u003c\/strong\u003e No, exhaust hose fitment is engine and model specific, so buyers should confirm their engine model and cross-reference part numbers before ordering the 18-2779 to ensure proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2779 include any mounting hardware or clamps?\u003c\/strong\u003e The package for part 18-2779 includes one exhaust hose only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the part number for reordering this exhaust hose?\u003c\/strong\u003e The part number is Sierra 18-2779.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2779 exhaust hose suitable for both raw water and exhaust flow?\u003c\/strong\u003e The 18-2779 is an exhaust hose used in the stern drive exhaust system of the listed Volvo Penta engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113174747,"sku":"SIE-18-2779","price":38.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2779_lg__42829.1558123171.500.750.jpg?v=1785188495"},{"product_id":"sierra-18-2781-exhaust-hose-replaces-volvo-penta-omc-3852742-marine-wet-exhaust","title":"Sierra Exhaust Hose 18-2781, Replaces 3852742, 4 Inch I.D., Fits 5.0L-8.2L Marine Engines","description":"\u003cp\u003eThe Sierra 18-2781 Exhaust Hose is a 4 inch inside diameter marine exhaust hose designed as a direct replacement for engine exhaust system service. It is built to move exhaust and cooling water discharge away from the engine through the boat's exhaust manifold and riser assembly, and it is engineered to meet or exceed the quality of the original equipment part it replaces. The hose carries a white finish and is sized specifically for a 4 inch I.D. Connection.\u003c\/p\u003e\u003cp\u003eThis exhaust hose is designated for a broad range of marine engines, including 5.0L, 5.7L, 5.8L, 7.4L, 8.1L, and 8.2L configurations across FL, GL, GI, GXI, GIL, GXIL, OSI, OSXI, FSI, and GSI variants. It directly replaces OEM part number 3852742, making it a straightforward drop-in solution for engines originally fitted with that hose. Whether servicing a routine exhaust hose replacement or repairing a cracked or deteriorated section, the Sierra 18-2781 restores proper exhaust routing and helps maintain a secure, leak-free connection at the manifold or riser fitting.\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 18-2781\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 3852742\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 5.0L FL, GL, GXI, OSI; 5.7L GL, GI, GXI, GIL, GXIL, OSI, OSXI; 5.8L FL, FSI; 7.4L GL, GI, GSI; 8.1L; 8.2L GL, GSI\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e5.0L FL, GL, GXI, OSI\u003c\/li\u003e\n\u003cli\u003e5.7L GL, GI, GXI, GIL, GXIL, OSI, OSXI\u003c\/li\u003e\n\u003cli\u003e5.8L FL, FSI\u003c\/li\u003e\n\u003cli\u003e7.4L GL, GI, GSI\u003c\/li\u003e\n\u003cli\u003e8.1L\u003c\/li\u003e\n\u003cli\u003e8.2L GL, GSI\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e3852742\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2781 exhaust hose replace?\u003c\/strong\u003e The Sierra 18-2781 exhaust hose directly replaces OEM part number 3852742.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of this exhaust hose?\u003c\/strong\u003e The Sierra 18-2781 has a 4 inch inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-2781 exhaust hose designed for?\u003c\/strong\u003e It is designated for 5.0L FL, GL, GXI, OSI; 5.7L GL, GI, GXI, GIL, GXIL, OSI, OSXI; 5.8L FL, FSI; 7.4L GL, GI, GSI; 8.1L; and 8.2L GL, GSI engine configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2781 exhaust hose weigh?\u003c\/strong\u003e The Sierra 18-2781 exhaust hose weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2781 exhaust hose?\u003c\/strong\u003e This exhaust hose has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2781 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-2781 is a Sierra aftermarket replacement hose, manufactured to meet or exceed the quality of the original equipment part it replaces, OEM number 3852742.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose fit my 5.7L GXI engine?\u003c\/strong\u003e Yes, the Sierra 18-2781 is designated for 5.7L GL, GI, GXI, GIL, GXIL, OSI, and OSXI engine configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2781 fit 8.1L engines?\u003c\/strong\u003e Yes, the 18-2781 exhaust hose is designated for 8.1L engines, along with 8.2L GL and GSI configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes with the Sierra 18-2781?\u003c\/strong\u003e The Sierra 18-2781 is supplied as a single exhaust hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2781 the correct hose for a 7.4L GSI engine?\u003c\/strong\u003e Yes, the Sierra 18-2781 exhaust hose is designated for 7.4L GL, GI, and GSI engine configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number should I cross-reference to confirm fit for the 18-2781?\u003c\/strong\u003e Cross-reference OEM number 3852742 to confirm the Sierra 18-2781 is the correct exhaust hose for your engine.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113240283,"sku":"SIE-18-2781","price":39.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2781_lg__74120.1558123226.500.750.jpg?v=1785188818"},{"product_id":"sierra-18-2780-1-marine-exhaust-hose-4-i-d-volvo-penta-stern-drive-replaces-oem-3852741-3863450-fits-3-0l-8-2l","title":"Sierra Exhaust Hose 4 Inch I.D., Replaces Volvo Penta 3852741 and 3863450, Part 18-2780-1","description":"\u003cp\u003eThe Sierra 18-2780-1 Exhaust Hose is a 4 inch inside diameter exhaust hose built for Volvo Penta stern drive exhaust systems. It carries hot exhaust gas and cooling water away from the engine through the stern drive exhaust path, and is constructed of plastic and rubber materials with a nominal wall thickness of 0.125 inches to withstand the heat and flexing found in a marine exhaust run. The hose is finished in black and is sold as one exhaust hose per package.\u003c\/p\u003e\u003cp\u003eThis exhaust hose is designed for a broad range of Volvo Penta stern drive engines, including 3.0L GL, GS, GI, GLM, GLP, GSM, GSP, and GS; 4.3L GL, GS, GI, GXI, and OSI; 5.0L FL, FI, GL, GXI, and OSI; 5.7L GL, GI, GXI, OSI, OSXI, GIL, and GXIL; 5.8L FL, FI, and FSI; 7.4L GL, GI, and GSI; and 8.2L GSI models. It directly replaces OEM exhaust hoses 3852741 and 3863450, and each Sierra part is built to meet or exceed the original equipment part 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 18-2780-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Wall Thickness:\u003c\/strong\u003e 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic, Rubber\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 0.76 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One exhaust hose per package\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta 3.0L GL, GS, GI, GLM, GLP, GSM, GSP, GS\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 4.3L GL, GS, GI, GXI, OSI\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 5.0L FL, FI, GL, GXI, OSI\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 5.7L GL, GI, GXI, OSI, OSXI, GIL, GXIL\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 5.8L FL, FI, FSI\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 7.4L GL, GI, GSI\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 8.2L GSI\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e3852741\u003c\/li\u003e\n\u003cli\u003e3863450\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of the Sierra 18-2780-1 exhaust hose?\u003c\/strong\u003e The Sierra 18-2780-1 exhaust hose has a 4 inch inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Volvo Penta engines does the 18-2780-1 exhaust hose fit?\u003c\/strong\u003e Part 18-2780-1 fits Volvo Penta 3.0L (GL, GS, GI, GLM, GLP, GSM, GSP, GS), 4.3L (GL, GS, GI, GXI, OSI), 5.0L (FL, FI, GL, GXI, OSI), 5.7L (GL, GI, GXI, OSI, OSXI, GIL, GXIL), 5.8L (FL, FI, FSI), 7.4L (GL, GI, GSI), and 8.2L (GSI) stern drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this exhaust hose replace?\u003c\/strong\u003e Yes, the Sierra 18-2780-1 directly replaces OEM exhaust hoses 3852741 and 3863450.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in a package?\u003c\/strong\u003e One exhaust hose is included per package of the Sierra 18-2780-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the exhaust hose made of?\u003c\/strong\u003e The 18-2780-1 exhaust hose is constructed of plastic and rubber materials, finished in black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow thick is the hose wall?\u003c\/strong\u003e The nominal wall thickness of the Sierra 18-2780-1 exhaust hose is 0.125 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2780-1 exhaust hose weigh?\u003c\/strong\u003e This exhaust hose weighs 0.76 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2780-1 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-2780-1 is a Sierra aftermarket exhaust hose engineered to meet or exceed the original equipment part it replaces, specifically OEM numbers 3852741 and 3863450.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used for the raw water side of the exhaust system?\u003c\/strong\u003e The Sierra 18-2780-1 is designed as an exhaust hose for the exhaust path on the Volvo Penta stern drive engines listed in its fitment, carrying exhaust gas away from the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2780-1 exhaust hose come with clamps?\u003c\/strong\u003e The package for the Sierra 18-2780-1 includes one exhaust hose; no additional components are listed as included.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113273051,"sku":"SIE-18-2780-1","price":37.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-2780_lg__56082.1558140482.500.750.jpg?v=1785189129"},{"product_id":"t-500-mk2-marine-exhaust-hose-3-1-2-inch-aer-st-double-clamp-style-5640dc-1","title":"T-500 MK2 Marine Exhaust Hose 3-1\/2 Inch AER ST Double Clamp Style 5640DC-1","description":"\u003cp\u003eThe T-500 MK2 AER ST 3-1\/2 DC, part number 5640DC-1, is a 3-1\/2 inch marine exhaust hose built for wet exhaust routing on inboard and sterndrive engines. It is identified by its MK2 revision and AER ST style designation, indicating an Aeroquip-style hose construction intended to handle the flex demands of a marine exhaust run, and its DC configuration marks it for double-clamp installation at each hose connection for a secure, leak-resistant seal. At 3-1\/2 inches, it is sized for exhaust systems specifying that diameter, and the hose weighs 0.5917 pounds. This part carries UPC 022697025982 for easy verification when ordering. Boat owners replacing a cracked, hardened, or leaking exhaust hose in this diameter can use the 5640DC-1 as a direct-size replacement, provided the existing hose is also 3-1\/2 inches in diameter. As with any wet exhaust hose, proper double-clamping at both ends of each connection point is recommended to prevent water intrusion and exhaust leaks.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e T-500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 5640DC-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Designation:\u003c\/strong\u003e MK2 AER ST 3-1\/2 DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Diameter:\u003c\/strong\u003e 3-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamp Configuration:\u003c\/strong\u003e Double clamp (DC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5917 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 022697025982\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the 5640DC-1 exhaust hose?\u003c\/strong\u003e The T-500 MK2 5640DC-1 measures 3-1\/2 inches in diameter, matching the 3-1\/2 designation in its model name.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does DC mean on the T-500 MK2 AER ST 3-1\/2 DC?\u003c\/strong\u003e DC on part number 5640DC-1 refers to the double-clamp configuration, meaning each hose connection is designed to be secured with two clamps rather than one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this exhaust hose weigh?\u003c\/strong\u003e The 5640DC-1 weighs 0.5917 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the T-500 MK2 AER ST 3-1\/2 DC?\u003c\/strong\u003e The UPC for part number 5640DC-1 is 022697025982, which can be used to confirm you are ordering the correct hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose a direct replacement for my old exhaust hose?\u003c\/strong\u003e The 5640DC-1 is sized at 3-1\/2 inches in diameter, so it can replace an existing exhaust hose of the same 3-1\/2 inch diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does MK2 mean for this part?\u003c\/strong\u003e MK2 indicates this is the second revision of the T-500 hose line, part number 5640DC-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does AER ST stand for on this hose?\u003c\/strong\u003e AER ST is the style designation used in the T-500 MK2 5640DC-1 model name, denoting an Aeroquip-style hose construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many clamps do I need to install the 5640DC-1?\u003c\/strong\u003e Because the 5640DC-1 is a DC, or double-clamp, hose, two clamps per connection point are recommended for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the part number for the T-500 MK2 AER ST 3-1\/2 DC hose?\u003c\/strong\u003e The part number is 5640DC-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 5640DC-1 be used on both port and starboard exhaust runs?\u003c\/strong\u003e The 5640DC-1 is a 3-1\/2 inch exhaust hose with no side-specific designation, so it is suited for exhaust runs sized to that diameter regardless of side.\u003c\/p\u003e","brand":"- None -","offers":[{"title":"Default Title","offer_id":49031624163547,"sku":"ATT-5640DC-1","price":32.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/ATT-5640DC-1__06534.1780061517.500.750.jpg?v=1785329068"},{"product_id":"mpi-hardwall-marine-exhaust-hose-sae-j2006-available-in-3-x-6-to-4-x-6-1-4","title":"MPI Hardwall Marine Exhaust Hose, SAE J2006 - Available in 3\" x 6' to 4\" x 6-1\/4'","description":"\u003cp\u003eMPI Hardwall Marine Exhaust Hose is a reinforced, rigid-wall exhaust hose built to carry hot engine exhaust gas and cooling water from the manifold or riser to the transom or muffler on inboard and sterndrive boats. Unlike soft corrugated exhaust tubing, this hardwall construction holds its shape under vacuum and back pressure, resists collapsing on tight bends, and is molded to meet SAE J2006 marine exhaust hose standards. Each length is finished in black rubber with a blue identification stripe for quick tracing during installation or service, and it is rated for continuous operating temperatures up to 220 degrees F, covering the ongoing heat load of a running engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: MPI\u003c\/li\u003e\n\u003cli\u003eConstruction: Hardwall, reinforced rubber\u003c\/li\u003e\n\u003cli\u003eStandard Compliance: SAE J2006\u003c\/li\u003e\n\u003cli\u003eMaximum Continuous Operating Temperature: 220 degrees F\u003c\/li\u003e\n\u003cli\u003eColor: Black with blue identification stripe\u003c\/li\u003e\n\u003cli\u003eSizes: 3 inch ID x 6 foot and 4 inch ID x 6-1\/4 foot\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eThis hose line is sold by inside diameter and length, matched to your engine's exhaust outlet or riser fitting. Measure the inside diameter of the existing hose or fitting before ordering, since hardwall exhaust hose is not designed to stretch over a mismatched fitting size. The 3 inch x 6 foot length suits smaller inboard and sterndrive exhaust runs, while the 4 inch ID x 6-1\/4 foot length is intended for larger displacement engines with bigger exhaust outlets. If your run is longer than the supplied length, sections can be coupled with an appropriately sized fitting and additional hose clamps.\u003c\/p\u003e","brand":"MPI Products","offers":[{"title":"3\" ID x 6'","offer_id":49049221824731,"sku":"MPI-250-3001","price":125.91,"currency_code":"USD","in_stock":false},{"title":"4\" ID x 6-1\/4'","offer_id":49049221857499,"sku":"MPI-250-4001","price":174.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/MPI-250-3001_lg__74375.1558117626.500.750_57602ba0-7d26-41b5-97fb-1d1d65a61590.jpg?v=1785456181"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/ATT-5640DC-1__06534.1780061517.500.750_b2dd6547-a44d-49b6-9cf2-6421977429c1.jpg?v=1785356507","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-engine-parts-systems-exhaust-system-exhaust-hoses-tubes.oembed","provider":"Good Vibes Marina","version":"1.0","type":"link"}