Don’t gamble with your Mercury’s reliability. This genuine **TAB WASHER | Component Of Powerhead** ensures long-term performance and protects your investment in quality marine power.

Engineered specifically for Mercury Marine engines, this component ensures reliable operation across all engine RPM ranges. Part number 429821 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.

Genuine Mercury Marine part 429821 isn’t just a replacement – it’s an investment in your engine’s longevity. Factory engineering ensures optimal performance while cheap alternatives lead to repeated repairs.

FITS: 100-125HP MARINER, MERCURY

• Fits MARINER, MERCURY 100-125HP engines
• Compatible HP: 100HP, 115HP, 125HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

100HP Models

• 100HP OUTBOARD (Mariner): 0G760300-0G965520, 0P017000-0P058999
• 100HP OUTBOARD (Mercury): 0G760300-0G965520, 0P017000-0P058999

115HP Models

• 115HP OUTBOARD (Mariner): 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999
• 115HP OUTBOARD (Mercury): 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999

125HP Models

• 125HP OUTBOARD (Mariner): 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999
• 125HP OUTBOARD (Mercury): 0G760300-0T979999, 0P017000-0P325499, 0T980000-0T999999

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

Questions about part 429821? Use our parts finder tool to verify fitment yourself. Prefer to talk to an expert? Use the contact buttons at the bottom of this page to reach our team by text, call, or email.

40+ years of marine expertise. Free shipping on most orders over $100 (restrictions apply).