Yanmar screw set for water pump cover 6 pieces – 128990-42520-6

Yanmar cover screws 128990-42520-6 is an original set of 6 screws for the cover plate of the seawater pump or impeller pump of various Yanmar marine engines. These screws secure the pump cover firmly to the pump housing and provide even pressure on the seal. This helps prevent cooling water leakage, pressure loss and a poorly sealed pump cover after inspection or replacement of the impeller.

Main features and benefits:

Set of 6 screws: Complete for mounting the water pump cover.
For impeller pump cover: Secures the inspection plate of the seawater pump.
Even sealing: Ensures correct pressure on the O-ring or gasket.
Prevents leakage: Helps prevent cooling water loss and pressure loss in the pump.
Ideal for impeller maintenance: Suitable for inspection, replacement or overhaul of the impeller pump.
Original Yanmar part: Guarantees a perfect fit and reliable installation.