6D8-WS443-00 Yamaha Housing Water Pump | Genuine OEM Yamaha Outboard Part

🔧 Product Description

Genuine Yamaha Lower Water Pump Housing Set - Part Number: 6D8-WS443-00

A genuine Yamaha lower water-pump base and seal-housing set for selected 60HP to 100HP outboards.

The assembly fits beneath the impeller and wear plate, supporting the driveshaft seals while forming the lower portion of the water-pump chamber.

⚙️ Key Features

• Genuine Yamaha OEM lower water-pump housing set

• Correct Yamaha part number 6D8-WS443-00

• Includes the lower pump base and installed sealing components

• Used on selected two-stroke and four-stroke gearcases

• Cross-references with Recmar and Outboard Spares replacements

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 6D8-WS443-00 → Supersedes 6D8-44341-00-94

• 6D8-44341-00-94 → Supersedes / replaces 688-44341-01-94

• 688-44341-01-94 → Related to 688-44341-00-94

• 688-44341-00-94 earlier Yamaha lower pump-housing reference

OEM / Related Numbers:

• 6D8-WS443-00

• 6D8-WS443-00-00

• 6D8WS4430000

• 6D8-44341-00-94

• 6D8-44341-01

• 688-44341-01-94

• 688-44341-00-94

• 688-44341-01 related lower pump base

Aftermarket / Verified Equivalents:

• Recmar: REC688-44341-01

• Outboard Spares: OSBH6D8

• Direct replacement: 6D8-44341 / 688-44341 lower housing set

• Aftermarket housing and seal set: 6D8-WS443-00

🚤 Compatibility

Commonly used on:

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

Typically suits:

• Engine models:

• Yamaha 60F two-stroke - approximately 2004-2018

• Yamaha E60H two-stroke

• Yamaha 70B two-stroke - approximately 2004-2018

• Yamaha 75A and 75C two-stroke

• Yamaha 80A two-stroke - approximately 1985-1996

• Yamaha 85A two-stroke - approximately 1995-1997

• Yamaha 90A two-stroke - approximately 1985-2018

• Yamaha F80A and F80B four-stroke - approximately 2001-2009

• Yamaha F100A, F100C and F100D four-stroke - approximately 2000-2009

• HP Range: 60HP - 100HP

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

• Year Range: Approximately 1985 - 2018, dependent on gearcase design

🔌 Function

The housing forms the lower water-pump base and supports the driveshaft oil seals. It separates the cooling-water pump chamber from the lubricated gearcase.

Common signs of failure:

• Gear oil appears beneath the water-pump base

• Lower-unit lubricant becomes milky

• Engine overheats because the pump base is distorted

• Seal bore is corroded or damaged

• Gearcase fails pressure or vacuum testing

📦 Condition

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging