GM Big Block Engine Circulating Pump | Sierra 18-3577-2
GM Big Block Engine Circulating Pump | Sierra 18-3577-2
Sierra
17 in stock
This Product Does Not Ship Free.
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GM Big Block Engine Circulating Pump | Sierra 18-3577-2
GM Big Block Engine Circulating Pump
- For all GM V8 454 & 502 cu. in. marine engines with stamped steel or composite timing covers
- Includes pump mounting gaskets
- Pump is bi-directional
- Replaces Mercury 8504541
- Replaces Crusader RA057019
- Replaces Pleasurecraft Marine RA057019
- Replaces OMC 3855991
- Replaces Volvo Penta 3855991
- Replaces Mallory 9-42604
- Replaces Sierra 18-3577, 18-3577-1
- Replaces Sherwood 1100
!! Not Eligible For Free Shipping !!
! 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.