Why pay dealer markup? Get genuine Mercury Marine quality at discount pricing. This O-RING delivers OEM reliability with savings up to 20% below retail.

Engineered to Mercury’s rigorous OEM standards, this seal ensures reliable operation across all engine RPM ranges. Part number 161771 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 161771 delivers long-term value through superior materials and precision manufacturing.

Compatible Mercury Marine Engines

FITS: 2-3HP MARINER, MERCURY

• Fits MARINER, MERCURY 2-3HP engines
• Compatible HP: 2HP, 3HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

2HP Models

• 2HP OUTBOARD (Mariner): 0G710613-0T894576, 0P017000-0P400999
• 2HP OUTBOARD (Mercury): 0T884302-0T894576, 0G710613-0T894576, 0P017000-0P400999

3HP Models

• 3HP OUTBOARD (Mariner): 0D901217-0G710612, 0G710613-0T894576, 0P017000-0P400999
• 3HP OUTBOARD (Mercury): 0D901217-0G710612, 0G710613-0T894576, 0P017000-0P400999

Need help finding your serial number? Check our serial number location guide for step-by-step instructions on locating it on your Mercury engine.

Verification & Support

Want to verify compatibility for part 161771? Use our parts finder tool for instant confirmation. Still have questions? No problem – use the contact buttons at the bottom of this page to reach us by text, call, or email

Serving boaters for over 40 years. Great prices, quick delivery – your parts ship fast.