Protect your Mercury investment with genuine OEM parts that last. This REPAIR KIT delivers years of reliable service – not just one season like cheap alternatives.

Engineered to Mercury’s rigorous OEM standards, this service 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.

Cut-rate alternatives might look similar, but they’re not engineered to Mercury’s exacting standards. Part 41478A1 delivers consistent performance because it’s built right — the same way Mercury does it at the factory.

Compatible Mercury Marine Engines

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

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

Verification & Support

Not sure if part 41478A1 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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