We’re on vacation. Orders are still welcome! We’ll return and begin shipping orders on October 12, 2026. Thank you for your patience.
We’re on vacation. Orders are still welcome! We’ll return and begin shipping orders on October 12, 2026. Thank you for your patience.
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Westerbeke 034563 freshwater circulating water pump with 034086 and 033481 gaskets for BTG, TWG, W 41G and W 70G
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Westerbeke 034563 Water Pump & Gasket Set – BTG, TWG, W 41G & W 70G

Regular price $164.99

Replacement freshwater circulating water pump and gasket set for compatible Westerbeke BTG and TWG/WTW marine generators and W 41G and W 70G gasoline engines. Includes the pump, engine-block mounting gasket, and pump-elbow gasket for freshwater circulating pump replacement.

Parts Included

• 034563 — Freshwater circulating water pump
• 034086 — Water pump-to-engine-block gasket
• 033481 — Water pump elbow gasket

Compatible Westerbeke Generator Models

• 8.5 BTG — 60 Hz
• 6.8 BTG — 50 Hz
• 12.5 BTG — 60 Hz
• 10.0 BTG — 50 Hz
• 15.0 BTG — 60 Hz
• 12.0 BTG — 50 Hz
• 6.5 TWG / WTW — 60 Hz
• 4.9 TWG / WTW — 50 Hz
• 8.0 TWG / WTW — 60 Hz
• 6.0 TWG / WTW — 50 Hz
• 11.0 TWG / WTW — 60 Hz

Compatible Westerbeke Engine Models

• W 41G
• W 70G

For the engine’s freshwater cooling circuit. Confirm your complete model designation and compare the pump mounting configuration before ordering.


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