Why pay dealer markup? Get genuine Mercury Marine quality at discount pricing. This **POPPET VALVE, Spring Length Is 2.00 Inch | Component Of Powerhead** delivers OEM reliability with savings up to 20% below retail.

Factory-built to exact Mercury Marine specifications, this component ensures reliable operation across all engine RPM ranges. Part number 86596 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 86596 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: 70-402HP MARINER, MERCURY

• Fits MARINER, MERCURY 70-402HP engines
• Compatible HP: 70HP, 75HP, 250HP, 300HP, 402HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

70HP Models

• 70HP OUTBOARD (Mariner): 0A996142-0B240450, 0B240451-0C221999, 9483121-9506480, 9506481-9589038
• 70HP OUTBOARD (Mercury): 0A996142-0B240450, 0B240451-0C221999, 9483121-9506480, 9506481-9589038

75HP Models

• 75HP OUTBOARD (Mariner): 0A996142-0B240450, 0B240451-0C221999, 0C222000-0D283221, 9483121-9506480, 9506481-9589038
• 75HP OUTBOARD (Mercury): 0A996142-0B240450, 0B240451-0C221999, 0C222000-0D283221, 9483121-9506480

250HP Models

• 250HP OUTBOARD (Mariner)
• 250HP OUTBOARD (Mercury)

300HP Models

• 300HP OUTBOARD (Mercury)

402HP Models

• 402HP OUTBOARD (Mercury)

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

Not sure if part 86596 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.

Trusted Mercury Marine parts specialist since 1985. Low prices on factory parts with free shipping on orders over $100 (restrictions apply).