Yanmar seawater pump cover gasket 1GM/1GM10 – 128170-42090

Yanmar gasket 128170-42090 is an original paper gasket for the cover of the seawater pump (impeller pump) of compact Yanmar 1GM and 1GM10 marine diesel engines. This gasket provides a watertight seal between the pump housing and the cover plate, so the cooling water pump maintains sufficient pressure and no cooling water leaks along the cover. A worn or reused gasket can cause pressure loss, leakage and reduced cooling water circulation, which may cause the engine to overheat.

Main features and benefits:

Watertight seal: Prevents leakage between the pump housing and cover plate.
Prevents pressure loss: Helps the seawater pump maintain the correct cooling water output.
For Yanmar 1GM and 1GM10: Suitable for compact single-cylinder Yanmar marine diesel engines.
3 mounting holes: Suitable for the pump cover with three mounting bolts.
Ideal for impeller maintenance: Recommended when inspecting or replacing the impeller.
Original Yanmar part: Guarantees a perfect fit and reliable sealing.