688-44315-A0 Yamaha Gasket Water Pump | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Lower Water Pump Plate Gasket - Part Number: 688-44315-A0

A genuine Yamaha lower water-pump gasket fitted beneath the wear plate or outer cartridge plate on selected mid-range outboard gearcases.

The gasket seals the pump plate against the lower-unit housing, preventing water from bypassing beneath the impeller chamber.

⚙️ Key Features

• Genuine Yamaha OEM water-pump gasket

• Correct Yamaha part number 688-44315-A0

• Lower wear-plate sealing position

• Used in Yamaha 60HP to 130HP water-pump and gearcase service kits

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

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 688-44315-A0 current Yamaha OEM service reference

OEM / Related Numbers:

• 688-44315-A0

• 688-44315-A0-00

• 68844315A000

• 688-44316-A0 related upper water-pump gasket

• 688-44324-A0 related cartridge gasket

• 688-44323-00 related outer plate

• 67F-W0078-00 related four-stroke pump kit

• 692-W0078-00 related two-stroke pump kit

Aftermarket / Verified Equivalents:

• Sierra: 18-0239

• Recmar: REC688-44315-00

• Mallory: 9-60378

• SEI Marine: 95-499-07C

• Paragon: 688-44315-00 replacement gasket

🚤 Compatibility

Commonly used on:

• Yamaha mid-range two-stroke and four-stroke water-pump assemblies

• Yamaha 67F and 688 / 692-series pump kits

Typically suits:

• Engine models:

• 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

• Yamaha 115HP and 130HP gearcases using the 688-series water-pump base

• HP Range: 60HP - 130HP

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

• Year Range: Approximately 1980s onward, dependent on lower-unit design

🔌 Function

The gasket seals beneath the water-pump plate so cooling water cannot bypass the impeller chamber.

Common signs of failure:

• Weak cooling-water flow after pump servicing

• Engine overheats despite a serviceable impeller

• Water leaks beneath the wear plate

• Gasket tears during disassembly

• Corrosion or gasket residue prevents the plate from sitting flat

📦 Condition

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging