Restore factory performance to your Mercury engine with this OEM **GASKET, PUMP COVER**. Engineered to exact specifications for reliable operation in fresh and saltwater conditions.

Engineered specifically for Mercury Marine engines, this water pump assembly ensures reliable operation across all engine RPM ranges. Part number 91749M 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 91749M saves you money long-term by lasting years instead of months. Factory precision means perfect installation – no modifications, no surprises.

FITS: 4-5HP MARINER

• Fits MARINER 4-5HP engines
• Compatible HP: 4HP, 5HP
• Covers 4 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

4HP Models

• 4HP OUTBOARD (Mariner)

5HP Models

• 5HP OUTBOARD (Mariner)

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

Verify part 91749M 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.

Trusted Mercury Marine parts specialist since 1985. Low prices, fast shipping – most orders placed by 1pm ship today.