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Engineered to Mercury’s rigorous OEM standards, this component ensures reliable operation across all engine RPM ranges. Part number 85899A1 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 85899A1 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

Compatible Mercury Marine Engines

FITS: 4-30HP MARINER, MERCURY

• Fits MARINER, MERCURY 4-30HP engines
• Compatible HP: 4HP, 15HP, 18HP, 25HP, 30HP
• Covers 24 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

4HP Models

• 4HP OUTBOARD (Mariner): 0P073456-0P400999, 0P401000-0R411837, 0R000001-0R067089, 0R067090-0R411837
• 4HP OUTBOARD (Mercury): 0P073456-0P400999, 0P401000-0R411837, 0R000001-0R067089, 0R067090-0R411837

15HP Models

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

18HP Models

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

25HP Models

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

30HP Models

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

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 85899A1? 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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