Don’t gamble with your Mercury’s reliability. This genuine NUT, Carburetor Mounting Stud ensures long-term performance and protects your investment in quality marine power.

Engineered to Mercury’s rigorous OEM standards, this component ensures reliable operation across all engine RPM ranges. Part number 64809 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 64809 delivers consistent performance because it’s built right — the same way Mercury does it at the factory.

Compatible Mercury Marine Engines

FITS: 115-140HP MARINER, MERCURY

• Fits MARINER, MERCURY 115-140HP engines
• Compatible HP: 115HP, 140HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

115HP Models

• 115HP OUTBOARD (Mariner): 4865178-5430526, 5430527-5738890, 5738891-6436122, 7191308-7208847, 8057045-8062459, 8062460-8062634
• 115HP OUTBOARD (Mercury): 5314656-5600966, 5600967-6436122, 7131213-7147987, 7147988-7208847, 8061120-8061269, 3525441-4855152, 7010763-7112248, 8008665-8051949, 4855153-5314655, 7112248-7131212, 8051950-8061119

140HP Models

• 140HP OUTBOARD (Mariner): 5088444-5443029
• 140HP OUTBOARD (Mercury): 5327663-5625107

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 64809 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

Serving boaters for over 40 years. Low prices, fast shipping – most orders placed by 1pm ship today.