Stop wasting money on aftermarket parts that fail. Invest in genuine Mercury Marine quality once – this **REPAIR KIT** outlasts cheap alternatives by years.

Built to Mercury’s exacting factory standards, this repair kit ensures reliable operation across all engine RPM ranges. Part number 41478A1 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 41478A1 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: 35-115HP MARINER, MERCURY

• Fits MARINER, MERCURY 35-115HP engines
• Compatible HP: 35HP, 45HP, 50HP, 100HP, 115HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

35HP Models

• 35HP OUTBOARD (Mercury)

45HP Models

• 45HP OUTBOARD (Mariner)
• 45HP OUTBOARD (Mercury)

50HP Models

• 50HP OUTBOARD (Mariner): 0B122930-0D000749
• 50HP OUTBOARD (Mercury): 0B122930-0D000749

100HP Models

• 100HP OUTBOARD (Mariner): 0A722297-0D283221, 9523034-9793576
• 100HP OUTBOARD (Mercury): 0B209468-0D283221, 9523034-9793576

115HP Models

• 115HP OUTBOARD (Mariner): 0C100000-0D283221, 9559771-9793576
• 115HP OUTBOARD (Mercury): 0C100000-0D283221, 9559771-9793576

Looking for your engine serial number? Our helpful guide shows you exactly where Mercury places serial numbers on different models.

Double-check compatibility for part 41478A1 using our parts finder tool. Still need assistance? No worries – contact us via the buttons at the bottom of this page (text, call, or email).

Trusted by boaters since 1985. Save up to 20% below retail on factory Mercury Marine parts.