Extend your Mercury engine’s life with this premium OEM CAM, Throttle (USE WITH BC2B CARBURETOR). Factory-engineered for durability in harsh marine conditions that destroy inferior parts.

Built with Mercury Marine’s precision engineering, this component ensures reliable operation across all engine RPM ranges. Part number 87997A1 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 87997A1 delivers consistent performance because it’s built right — the same way Mercury does it at the factory.

Compatible Mercury Marine Engines

FITS: 18-25HP MERCURY

• Fits MERCURY 18-25HP engines
• Compatible HP: 18HP, 25HP
• Covers 8 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

18HP Models

• 18HP OUTBOARD (Mercury): 5837437-6416712, 7173723-7207857, 9308306-9378115

25HP Models

• 25HP OUTBOARD (Mercury): 5705532-6416712, 7166928-7207857, 9315316-9378115

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

Not sure if part 87997A1 fits your engine? Try our parts finder tool — it’s quick and easy. Need expert help? Contact us using the buttons at the bottom of this page – text, call, or email, whatever works best for you

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