Cobra SX Engine Coupler | Sierra 18-21752-1
Cobra SX Engine Coupler | Sierra 18-21752-1
Sierra
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Cobra SX Engine Coupler | Sierra 18-21752-1
Coupler connects OMC & Volvo Penta GM V6 & V8 engines to stern drives.
- Fits OMC and Volvo 4.3L V6 engines from 1986 to present
- Fits OMC and Volvo 5.0L engines from 1986 to1988 and 1998 to present
- Fits OMC and Volvo 5.7L engines from 1986 to1992, 1994, 1996 to present
- Replaces OMC 984290, 986120, 3853917, and 3858437
- Replaces Volvo Penta 3853917 and 3858437
- Replaces Sierra 18-21752
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.