Take control of your Mercury maintenance with this genuine GEAR ASSEMBLY, Pinion/Forward (29 Teeth). Straightforward replacement that delivers factory results without shop labor costs.

Built with Mercury Marine’s precision engineering, this component ensures reliable operation across all engine RPM ranges. Part number 881260A5 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.

Why risk your Mercury engine with questionable aftermarket parts? Genuine part 881260A5 is built to last, backed by Mercury Marine’s decades of marine engineering expertise and proven reliability.

Compatible Mercury Marine Engines

FITS: 65-90HP MARINER, MERCURY

• Fits MARINER, MERCURY 65-90HP engines
• Compatible HP: 65HP, 75HP, 90HP
• Covers 18 serial number ranges
• Configurations: Jet Drive, Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

65HP Models

• 65HP JET (Mariner): 0G760300-0T979999, 0P017000-0P325499
• 65HP JET (Mercury): 0G760300-0T979999, 0P017000-0P325499

75HP Models

• 75HP OUTBOARD (Mariner): 0G760300-0T979999, 0P017000-0P325499, 0G960500-0T800999, 0G960500-0T800999
• 75HP OUTBOARD (Mercury): 0G760300-0T979999, 0P017000-0P325499, 0G960500-0T800999, 0G960500-0T800999

90HP Models

• 90HP OUTBOARD (Mariner): 0G760300-0T979999, 0P017000-0P325499, 0G960500-0T800999
• 90HP OUTBOARD (Mercury): 0G760300-0T979999, 0P017000-0P325499, 0G960500-0T800999

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

Verify part 881260A5 works with your Mercury using our parts finder tool. Have questions? Reach out using the contact buttons at the bottom of this page — our team is here to help by text, call, or email

Family-owned and operated since 1985. Best prices guaranteed – free shipping on orders over $100.