Extend your Mercury engine’s life with this premium OEM PUMP ASSEMBLY, Fuel-Complete Only Design-II. Factory-engineered for durability in harsh marine conditions that destroy inferior parts.

Designed and manufactured to Mercury Marine OEM standards, this pump ensures reliable operation across all engine RPM ranges. Part number 803529T07 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 803529T07 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: 8-9HP MARINER, MERCURY

• Fits MARINER, MERCURY 8-9HP engines
• Compatible HP: 8HP, 9HP
• Covers 8 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

8HP Models

• 8HP OUTBOARD (Mariner)
• 8HP OUTBOARD (Mercury)

9HP Models

• 9HP OUTBOARD (Mariner)
• 9HP OUTBOARD (Mercury)

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

Verification & Support

Verify part 803529T07 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

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