# 6CJ-44311-00 Yamaha Housing Water Pump | Genuine OEM Yamaha Outboard Part

🔧 Product Description

  

Genuine Yamaha Water Pump Housing - Part Number: 6CJ-44311-00

  

A genuine Yamaha lower-unit water-pump housing for F70 four-stroke outboards.

  

The housing surrounds the flexible impeller and forms the chamber required to draw cooling water through the gearcase inlet and direct it into the engine cooling tube.

  

⚙️ Key Features

  

• Genuine Yamaha OEM water-pump housing

• Correct Yamaha part number 6CJ-44311-00

• Designed for the Yamaha F70 lower-unit water pump

• Precision-moulded impeller chamber and water outlet

• Suitable for scheduled pump servicing and overheating repairs

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 6CJ-44311-00 current Yamaha OEM service reference

  

OEM / Related Numbers:

  

• 6CJ-44311-00

• 6CJ-44311-00-00

• 6CJ443110000

• 6CJ-44315-00 related water-pump gasket

• 6CJ-44324-00 related cartridge gasket

• 6CJ-W0078-00 related water-pump repair kit

• 6CJ-W0078-01 later water-pump repair-kit reference

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha F70A and F70LA four-stroke lower-unit water pumps

  

Typically suits:

  

• Engine models:

• Yamaha F70A

• Yamaha F70AET

• Yamaha F70AETL

• Yamaha F70LA

• Yamaha F70LA2

• Yamaha F70LA production from April 2010 onward

  

• HP Range: 70HP

• Engine Type: Yamaha inline-four EFI four-stroke outboard

• Year Range: Approximately 2010 onward

  

🔌 Function

  

The housing encloses the impeller and maintains the internal clearances required to generate cooling-water suction and pressure.

  

Common signs of failure:

  

• Internal housing surface is scored or melted

• Weak or absent tell-tale stream

• Engine overheats despite installation of a new impeller

• Housing is cracked, distorted or corroded

• Water leaks around the housing outlet or base

  

📦 Condition

  

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 50.6 AUD
- **Vendor:** Yamaha
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 50.60 AUD | In stock |

## Images

- 6CJ-44311-00 Yamaha Housing Water Pump | Genuine OEM Yamaha Outboard Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/6cj-44311-00-housing-water-pump)
> Updated: 2026-07-11