Why pay dealer markup? Get genuine Mercury Marine quality at discount pricing. This DIAPHRAGM delivers OEM reliability with savings up to 20% below retail.

Built with Mercury Marine’s precision engineering, this component ensures reliable operation across all engine RPM ranges. Part number 648771 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.

Aftermarket parts might save a few dollars upfront, but genuine Mercury Marine part 648771 saves you money long-term by lasting years instead of months. Factory precision means perfect fit — no modifications, no surprises.

Compatible Mercury Marine Engines

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

Looking for your Mercury engine serial number? Our helpful guide shows you exactly where serial numbers are located on different engines.

Verification & Support

Verify part 648771 works with your Mercury using our parts finder tool. Have questions? Reach out using the contact buttons at the bottom of this page — our team is here to help by text, call, or email

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