Don’t gamble with your Mercury’s reliability. This genuine BASE ASSEMBLY, Water Pump COMPONENT OF WATER PUMP REPAIR KIT [46-812966A12] ensures long-term performance and protects your investment in quality marine power.

Built with Mercury Marine’s precision engineering, this pump ensures reliable operation across all engine RPM ranges. Part number 812966A7 is manufactured to exact Mercury Marine factory specifications for precision installation and optimal performance. Constructed from premium marine-grade materials designed to withstand harsh saltwater and freshwater environments.

Factory parts exist for a reason — they work. Part 812966A7 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

Compatible Mercury Marine Engines

FITS: 30-40HP MARINER, MERCURY (EFI)

• Fits MARINER, MERCURY 30-40HP engines
• Compatible HP: 30HP, 40HP
• Model types: EFI
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

30HP Models

• 30HP EFI (Mariner)
• 30HP EFI (Mercury)

40HP Models

• 40HP CARB (Mariner): 1B227000-1B344306, 1C000001-1C018825
• 40HP CARB (Mercury): 1B227000-1B344306, 1C000001-1C018825
• 40HP EFI (Mariner): 0P401000-0P515896, 1B227000-1B344398, 1C000001-1C049738, 0P153500-0P400999
• 40HP EFI (Mercury): 0P401000-0P515896, 1B227000-1B344398, 1C000001-1C049738, 0P153500-0P400999
• 40HP OUTBOARD (Mariner): 0P094500-0P206999, 0T178500-0T598999
• 40HP OUTBOARD (Mercury): 0P094500-0P206999, 0T178500-0T598999

Looking for your Mercury engine serial number? Our helpful guide shows you exactly where serial numbers are located on different engines.

Verification & Support

Not sure if part 812966A7 fits your engine? Try our parts finder tool — it’s quick and easy. Need expert help? Contact us using the buttons at the bottom of this page – text, call, or email, whatever works best for you

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