# 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

## Details

- **Price:** 5.25 AUD
- **Vendor:** Yamaha
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 5.25 AUD | In stock |

## Images

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

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/688-44315-a0-00-gasket-water-pump)
> Updated: 2026-07-11