# 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part

🔧 Product Description

  

Genuine Yamaha Lower-Unit Water Pump Housing - Part Number: 688-44311-01

  

A genuine Yamaha water-pump housing for selected 60HP to 90HP two-stroke outboards.

  

The housing surrounds the impeller and directs water from the lower-unit inlet into the engine cooling tube. A smooth, correctly shaped internal chamber is essential for maintaining pump suction and pressure.

  

⚙️ Key Features

  

• Genuine Yamaha OEM water-pump housing

• Correct Yamaha part number 688-44311-01

• Used on Yamaha 60HP to 90HP two-stroke gearcases

• Replaces the earlier 688-44311-00 housing

• Cross-references with Sierra, Recmar and SEI complete-pump alternatives

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 688-44311-01 → Supersedes 688-44311-00

• 688-44311-00 earlier Yamaha water-pump housing reference

  

OEM / Related Numbers:

  

• 688-44311-01

• 688-44311-01-00

• 688443110100

• 688-44311-00

• 688-44352-03 related impeller

• 688-44315-A0 related lower water-pump gasket

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

• 692-W0078-A0 related water-pump kit

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-3171

• Recmar: REC688-44311-01

• SEI Marine: 96-498-01FK complete kit with housing

• PROMT / aftermarket complete housing kits replacing 688-44311-01

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha mid-range two-stroke lower-unit water pumps

  

Typically suits:

  

• Engine models:

• Yamaha 60HP two-stroke

• Yamaha 60F two-stroke

• Yamaha 70HP two-stroke from approximately 2004 onward

• Yamaha 70B two-stroke

• Yamaha C75

• Yamaha E75

• Yamaha P75

• Yamaha C85 - approximately 1992-1995

• Yamaha 85A

• Yamaha 90HP two-stroke

• Yamaha 90A

  

• HP Range: 60HP - 90HP

• Engine Type: Yamaha carburetted two-stroke outboard

• Year Range: Approximately 1984 onward, dependent on gearcase

  

🔌 Function

  

The housing encloses the impeller and forms the pumping chamber needed to draw and pressurise cooling water.

  

Common signs of failure:

  

• Housing interior is scored or melted

• Weak or absent tell-tale stream

• Engine overheats despite a new impeller

• Housing is cracked, corroded or distorted

• Water leaks around the housing outlet or base

  

📦 Condition

  

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 63.95 AUD
- **Vendor:** Yamaha
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 63.95 AUD | In stock |

## Images

- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part
- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part
- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part
- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part
- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part
- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part
- 688-44311-01 Yamaha Water Pump Housing | Genuine OEM Yamaha Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/688-44311-01-water-pump-housing)
> Updated: 2026-07-11