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Add to CartSierra high-quality engine parts are designed to meet OEM specifications. This Water Pump Base fits MR & Alpha One Drives (1985-1990).
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Sierra 18-3414 Mercury Water Pump Base Sierra high-quality engine parts are designed to meet OEM specifications. For Mercury Marine applications. Interchangeable...
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Sierra 18-3417 Mercruiser Water Pump Base Drive Serial Number Range 2763442 - 6854392 Models which have been retro fitted with an Alpha style ( no preload pin on top of driveshaft) must use Part#...
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Sierra 18-3322 Water Pump Kit for Mercury Marine Sierra high-quality engine parts are designed to meet OEM specifications. Fits various Mercury 35/40/50/65 HP outboard engines prior to...
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Sierra 18-3116 Water Pump Housing for Mercury, Mercruiser Sierra high-quality replacement engine parts are designed to meet OEM specifications. For use with 18-3109 Water Tube Guide and...
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