Maintain peak Mercury Marine performance with this factory-engineered SEAL, Oil SN# 0N188716 & Below COMPONENT OF GEAR HOUSING SEAL KIT [27- 95220A 1] or [27-8M0089639]. Designed for precision installation and built to handle demanding marine environments season after season.

Built with Mercury Marine’s precision engineering, this seal ensures reliable operation across all engine RPM ranges. Part number 161301 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 161301 delivers long-term value through superior materials and precision manufacturing.

Compatible Mercury Marine Engines

FITS: 25-30HP MARINER, MERCURY (EFI)

• Fits MARINER, MERCURY 25-30HP engines
• Compatible HP: 25HP, 30HP
• Model types: EFI
• Covers 16 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

25HP Models

• 25HP EFI (Mariner)
• 25HP EFI (Mercury)
• 25HP JET (Mercury)
• 25HP OUTBOARD (Mariner): 0N018456-0N055504
• 25HP OUTBOARD (Mercury): 0N018456-0N055504
• 25HP SEAPRO (Mercury)

30HP Models

• 30HP EFI (Mariner)
• 30HP EFI (Mercury)
• 30HP OUTBOARD (Mariner): 0N001875-0N055504
• 30HP OUTBOARD (Mercury): 0N001875-0N055504

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

Verification & Support

Questions about part 161301? 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

Serving boaters for over 40 years. Low prices, fast shipping – most orders placed by 1pm ship today.