Extend your Mercury engine’s life with this premium OEM PROPSHAFT. Factory-engineered for durability in harsh marine conditions that destroy inferior parts.

Designed and manufactured to Mercury Marine OEM standards, this propeller component ensures reliable operation across all engine RPM ranges. Part number 8166231 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 8166231 delivers long-term value through superior materials and precision manufacturing.

Compatible Mercury Marine Engines

FITS: 13-20HP MARINER, MERCURY (SEA PRO)

• Fits MARINER, MERCURY 13-20HP engines
• Compatible HP: 13HP, 15HP, 20HP
• Model types: SEA PRO
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

13HP Models

• 13HP OUTBOARD (Mariner): 0P134638-0P400999
• 13HP OUTBOARD (Mercury): 0P134638-0P400999

15HP Models

• 15HP MARATHON XD (Mariner): 0P017000-0P325499, 9927000-0P016999
• 15HP OUTBOARD (Mariner): 0G590000-0G760299, 0G760300-1B226999, 0P075166-0P400999, 1B227000-1B727495, 9973100-0P016999
• 15HP OUTBOARD (Mercury): 0G590000-0G760299, 0G760300-1B226999, 0P075166-0P400999, 1B227000-1B727495, 9973100-0P016999
• 15HP SEA PRO (Mercury): 0P017000-0P325499, 9927000-0P016999

20HP Models

• 20HP OUTBOARD (Mariner): 0G044027-0G760299, 0G760300-0T979999
• 20HP OUTBOARD (Mercury): 0G044027-0G760299, 0G760300-0T979999

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

Not sure if part 8166231 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

Serving boaters for over 40 years. Discount pricing with expert service – shipping daily.