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Description
Sierra 18-3506-1 Circulating Pump
Sierra replacement circulating pump for V6 Sterndrives. All Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements.
- For V6 MCM (s/n 1A063240 & up); Newer 4.3L w/o water bypass hole
Interchangeable with:
- Mercruiser Stern Drive
- 46-879194366
- 46-879194401
- 46-8M0094406
- 46-8M6005225
- Volvo Penta
- 21124846
California Residents: 
WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
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