Mercruiser Inline Fuel Filter | Sierra 18-7721
Mercruiser Inline Fuel Filter | Sierra 18-7721
Sierra
49 in stock
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Mercruiser Inline Fuel Filter | Sierra 18-7721
Sierra fuel filter fits Mercruiser MPI & EFI marine engines with boost pump.
- Mercruiser fuel filter
- Fits all MPI and EFI Mercruiser engines with boost pump
- 8.1L 496 cu. in.
- For 3/8 in. ID fuel lines
- Replaces Mercury 35-864572
! 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.