Protect your Mercury investment with genuine OEM parts that last. This **SEAL, Oil | COMPONENT OF LOWER UNIT GASKET SET [27-804908A00] or [27-803728A99]** delivers years of reliable service – not just one season like cheap alternatives.

Factory-built to exact Mercury Marine specifications, this gasket ensures reliable operation across all engine RPM ranges. Part number 161622 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 161622 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

FITS: 10-30HP MARINER, MERCURY (EFI)

• Fits MARINER, MERCURY 10-30HP engines
• Compatible HP: 10HP, 15HP, 18HP, 20HP, 25HP, 30HP
• Model types: EFI
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

10HP Models

• 10HP OUTBOARD (Mercury)

15HP Models

• 15HP OUTBOARD (Mariner): 0N001590-0N055284
• 15HP OUTBOARD (Mercury): 0N001590-0N055284
• 15HP SEAPRO (Mercury): 0R051685-0R123564

18HP Models

• 18HP OUTBOARD (Mercury): 0N001590-0N055284

20HP Models

• 20HP OUTBOARD (Mariner)
• 20HP OUTBOARD (Mercury)

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 OUTBOARD (Mariner): 0N001875-0N055504

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

Double-check compatibility for part 161622 using our parts finder tool. Still need assistance? No worries – contact us via the buttons at the bottom of this page (text, call, or email).

Trusted by boaters since 1985. Get Mercury OEM quality at discounted prices – exceptional savings on genuine parts.