Weekend coming up? Order this Mercury REPAIR KIT, Water Pump now for fast shipping. Most orders placed by 1pm ship today so you’re fishing, not fixing.

Factory-built to exact Mercury Marine specifications, this pump ensures reliable operation across all engine RPM ranges. Part number 821354A2 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.

Smart boat owners know: buying cheap parts twice costs more than buying genuine Mercury once. Part 821354A2 delivers long-term value through superior materials and precision manufacturing.

Compatible Mercury Marine Engines

FITS: 25-30HP MARINER, MERCURY

• Fits MARINER, MERCURY 25-30HP engines
• Compatible HP: 25HP, 30HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

25HP Models

• 25HP OUTBOARD (Mariner): 0G590000-0G760299, 0P153500-0P388282, 0T409000-1B344298, 9973100-0P016999
• 25HP OUTBOARD (Mercury): 0G590000-0G760299, 0P153500-0P388282, 0T409000-1B344298, 9973100-0P016999

30HP Models

• 30HP OUTBOARD (Mariner): 0G055314-0G760299, 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999, 9854537-0P016999, 0G760300-0T408999
• 30HP OUTBOARD (Mercury): 0G055314-0G760299, 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999, 9854537-0P016999, 0G760300-0T408999

Not sure where to find your engine’s serial number? View our quick reference guide to locate it on your Mercury Marine engine.

Verification & Support

Verify part 821354A2 works with your Mercury using our parts finder tool. Have questions? Reach out using the contact buttons at the bottom of this page — our team is here to help by text, call, or email

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