688-44316-A0 Yamaha Water Pump Gasket | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Water Pump Base Gasket - Part Number: 688-44316-A0

A genuine Yamaha water-pump gasket fitted between the pump base and lower-unit housing on selected mid-range outboards.

The gasket seals the pump base to the gearcase, maintaining cooling-water suction and preventing leakage around the base assembly.

⚙️ Key Features

• Genuine Yamaha OEM water-pump base gasket

• Correct Yamaha part number 688-44316-A0

• Upper or base sealing position in the pump assembly

• Used across Yamaha 50HP to 100HP water-pump systems

• Cross-references with Sierra, Recmar, Mallory, SEI and Paragon replacements

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 688-44316-A0 current Yamaha OEM service reference

OEM / Related Numbers:

• 688-44316-A0

• 688-44316-A0-00

• 68844316A000

• 688-44315-A0 related lower pump gasket

• 688-44324-A0 related cartridge gasket

• 688-44341-01 related pump base

• 67F-W0078-00 related water-pump kit

• 692-W0078-00 related water-pump kit

Aftermarket / Verified Equivalents:

• Sierra: 18-0240

• Recmar: REC688-44316-00

• Mallory: 9-60382

• SEI Marine: 96-499-22F

• Paragon: 688-44316-00 replacement gasket

• SeaStar Solutions: 118-0240

🚤 Compatibility

Commonly used on:

• Yamaha mid-range lower-unit water-pump bases

• Yamaha 688, 692 and 67F-series pump assemblies

Typically suits:

• Engine models:

• Yamaha 50HP two-stroke gearcases using the 688 pump base

• Yamaha 60HP two-stroke

• Yamaha 70HP and 70B two-stroke

• Yamaha 75HP, C75, E75 and P75

• Yamaha 80HP and C80

• Yamaha 85HP and C85

• Yamaha 90HP and C90

• Yamaha F75 four-stroke

• Yamaha F80 four-stroke

• Yamaha F90 four-stroke

• Yamaha F100 four-stroke

• HP Range: 50HP - 100HP

• Engine Type: Yamaha two-stroke and four-stroke outboard

• Year Range: Approximately 1980s onward, dependent on pump-base design

🔌 Function

The gasket seals the water-pump base against the gearcase so the impeller can draw water without air or pressure leakage.

Common signs of failure:

• Reduced tell-tale flow

• Engine overheats after pump installation

• Water leaks around the pump base

• Gasket is torn or incorrectly aligned

• Pump base does not sit flat against the gearcase

📦 Condition

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging