Stop wasting money on aftermarket parts that fail. Invest in genuine Mercury Marine quality once – this SEAL, Oil outlasts cheap alternatives by years.

Designed and manufactured to Mercury Marine OEM standards, this seal ensures reliable operation across all engine RPM ranges. Part number 821928 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 821928 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

Compatible Mercury Marine Engines

FITS: 10HP MARINER, MERCURY (MAGNUM, MARATHON, SEA PRO)

• Fits MARINER, MERCURY 10HP engines
• Compatible HP: 10HP
• Model types: MAGNUM, MARATHON, SEA PRO
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

10HP Models

• 10HP MAGNUM (Mariner): 0D038000-0D279999, 0D281000-0G760299, 0G760300-0T979999, 0P017000-0P325499, 9596000-9792199, 9792200-0P016999
• 10HP MARATHON (Mariner): 0D038000-0D279999, 0D281000-0G760299, 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999, 9596000-9792199, 9792200-0P016999
• 10HP SEA PRO (Mercury): 0D038000-0D279999, 0D281000-0G760299, 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999, 9596000-9792199, 9792200-0P016999

Don’t know where your serial number is? Our quick reference guide shows exactly where to find it on Mercury Marine engines.

Verification & Support

Questions about part 821928? Use our parts finder tool to verify fitment yourself. Prefer to talk to an expert? Use the contact buttons at the bottom of this page to reach our team by text, call, or email

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