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

🚤 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

🔄 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

📦 Condition

• Genuine Yamaha part
• Brand new
• Supplied in original or equivalent packaging