Protect your Mercury investment with genuine OEM parts that last. This SPRING delivers years of reliable service – not just one season like cheap alternatives.

Built with Mercury Marine’s precision engineering, this seal ensures reliable operation across all engine RPM ranges. Part number 804534 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.

Cut-rate alternatives might look similar, but they’re not engineered to Mercury’s exacting standards. Part 804534 delivers consistent performance because it’s built right — the same way Mercury does it at the factory.

Compatible Mercury Marine Engines

FITS: 110-200HP MARINER, MERCURY, SPORTJET

• Fits MARINER, MERCURY, SPORTJET 110-200HP engines
• Compatible HP: 110HP, 150HP, 175HP, 200HP
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

110HP Models

• 110HP JET (Mercury)

150HP Models

• 150HP OUTBOARD (Mercury)

175HP Models

• 175HP PROXS (Mercury)

200HP Models

• 200HP DFI JET DRIVE (Sportjet): 0E384500-0E435741
• 200HP OUTBOARD (Mariner): 0G760300-0G960499, 0G960500-0T178499, 0T178500-0T598999, 0T599000-0T800999, 0T801000-1B417701, 1B417702-1B504988, 1B504989-1B912785
• 200HP OUTBOARD (Mercury): 0T980000-1B417701, 1B417702-1B504988, 0G760300-0G960499, 0G960500-0T178499, 0T178500-0T598999, 0T599000-0T800999, 0T801000-1B417701, 1B417702-1B504988, 1B504989-1B912785

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

Want to verify compatibility for part 804534? 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

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