Yanmar impeller pump wear plate with part number 119175-42520. This plate is used inside the seawater / impeller pump and gives the impeller a smooth surface to run against. Suitable for Yanmar engines including: 4LHA DTE, 4LHA DTP, 4LHA STE and 4LHA STP. This wear plate is part of the raw water cooling system. It is often checked or replaced when servicing the impeller pump, especially if the surface is scratched, worn or corroded.
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