Fuel Pump Mercruiser GM Big Block | Sierra 18-8860
Fuel Pump Mercruiser GM Big Block | Sierra 18-8860
Sierra
13 in stock
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Fuel Pump Mercruiser GM Big Block | Sierra 18-8860
Fuel Pump Mercruiser GM Big Block | Sierra 18-8860
Mercruiser GM Big Block Fuel Pump | 18-8860
Mechanical fuel pump for Mercruiser 7.4L & 8.2L marine engines.
- Fits Mercruiser GM V8 454 & 502 cu. in. engines
- Includes mounting gasket
- Replaces Mercrusier 861677T, 818383T
! 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.