Mercruiser 4 Cylinder Engine Coupler | Sierra 18-2321
Mercruiser 4 Cylinder Engine Coupler | Sierra 18-2321
Sierra
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Mercruiser 4 Cylinder Engine Coupler | Sierra 18-2321
SIERRA Engine Coupler 18-2321
- This triangular style engine coupler is for GM 4 cylinder engines with late style, small crankshaft bolt pattern
- Fits Mercruiser model 3.0LX engines from 1994 to 1998 with serial number range F000001-L096999
- This is the same as the 18-2195 without the yoke shaft
- Replaces Mercury 12632A6
- Replaces Mallory 9-72506
! 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.