{"product_id":"sierra-18-21753-engine-coupler-for-volvo-penta-5-0l-5-8l-1989-96-replaces-oem-3853862","title":"Sierra 18-21753 Engine Coupler, White, Replaces OMC 3853862 \/ Volvo 3853862-5, Fits Volvo Penta 50L \u0026 58L (1989-1996)","description":"\u003cp\u003eThe Sierra 18-21753 is a white engine coupler engineered as a direct-fit replacement for Volvo Penta 50L and 58L engines built between 1989 and 1996. The coupler connects the engine output to the drive system, transmitting rotational power while accommodating the slight misalignment inherent in the coupling joint. It is built to Sierra's OEM specification standard, so it installs the same way as the original coupler it replaces and restores proper power transfer between the engine and drive unit.\u003c\/p\u003e\u003cp\u003eThis coupler is a direct cross-reference match for the OMC 3853862, Volvo 3853862-5, and 985727 part numbers, making it a straightforward swap for boat owners and marine technicians replacing a worn, cracked, or failed original coupler. Because a coupler is a wear item subject to constant torque and vibration loads, replacing it with a part built to OEM spec helps ensure reliable engine-to-drive power transmission and reduces the risk of premature failure from an ill-fitting substitute.\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 18-21753\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.57 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Volvo Penta 50L \u0026amp; 58L (1989-1996)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e OMC 3853862, Volvo 3853862-5, 985727\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282186388\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta 50L (1989-1996)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 58L (1989-1996)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 3853862\u003c\/li\u003e\n\u003cli\u003eVolvo 3853862-5\u003c\/li\u003e\n\u003cli\u003e985727\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-21753 engine coupler fit?\u003c\/strong\u003e The Sierra 18-21753 fits Volvo Penta 50L and 58L engines built from 1989 to 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-21753 replace?\u003c\/strong\u003e It cross-references to OMC 3853862, Volvo 3853862-5, and 985727, so any of those OEM numbers point to this same coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-21753 engine coupler?\u003c\/strong\u003e It is finished in white, matching the original equipment coupler it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-21753 engine coupler weigh?\u003c\/strong\u003e The Sierra 18-21753 weighs 6.57 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-21753 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-manufactured replacement built to OEM specification, sold under the Sierra 18-21753 part number rather than under the original OMC or Volvo part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this coupler work if my engine data plate lists OMC 3853862?\u003c\/strong\u003e Yes, the Sierra 18-21753 is the direct cross-reference replacement for OMC 3853862.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-21753 also replace Volvo Penta part 985727?\u003c\/strong\u003e Yes, 985727 is one of the OEM numbers this Sierra coupler replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the engine coupler do?\u003c\/strong\u003e The 18-21753 connects the engine output to the drive system, transferring rotational power while accommodating minor misalignment at the coupling joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-21753 the same as the original coupler?\u003c\/strong\u003e Yes, since it is built to OEM specification and matches the original OMC 3853862 \/ Volvo 3853862-5 coupler, it installs using the same mounting arrangement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-21753?\u003c\/strong\u003e The order includes one Sierra 18-21753 white engine coupler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this coupler fit engines outside the 1989-1996 range?\u003c\/strong\u003e The Sierra 18-21753 is specified for Volvo Penta 50L and 58L engines from 1989 to 1996; fitment outside that range is not confirmed.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105638107,"sku":"SIE-18-21753","price":444.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-21753__79046.1729786508.500.750.jpg?v=1785188911","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-21753-engine-coupler-for-volvo-penta-5-0l-5-8l-1989-96-replaces-oem-3853862","provider":"Good Vibes Marina","version":"1.0","type":"link"}