Water pump kit for Yanmar 2GMF 3GMF 124223-42092 128296-42070 for 121575-42000

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High-quality marine engine spare parts.  

Water pump repair kit for Yanmar:

  • 2GMF , 3GMF , 3GMDF , 1980-83
  • 2GM20F , 3GM30F , 1983-2005 freshwater cooled (antifreeze) models made in Japan.
  • 3HM , 3HMF , 1980-83
  • 3HM35 , 3HM35F , 1983-1992

For pumps with 70mm (2 3/4") water pump cover

Will not fit 1997 and later European made. (E prefix before serial number on the European models)

Will not fit raw water cooled engines (engines without radiator/heat exchanger)

Available both Major (With Impeller) and minor (Without Impeller)

You can also purchase impeller kit separately which you may find in our store with part number:


Known pumps: 121575-42000, 721575-42700, 721575-42701, 721575-42702

Repair kit consists of:

  • Impeller kit RO: 124223-42092 128296-42070 (ONLY MAJOR)
  • Gasket RO: 124223-42110
  • Bearings RO: 24107-062024
  • Seal S.S. spring RO: 124223-42080
  • Snapring, bearing retainer RO: 22252-000350
  • Snapring shaft S.S. RO: 22242-000150
  • Bolts S.S. RO: 26554-040082

Buy this kit if:

  1. Your impeller dimensions (Dshaft X Dexternal X Height) are (12.75 X 50.80 X 22.10)mm
  2. Your pump cover measures exactly 70mm (2 3/4"). Otherwise not correct part for you.
  3. The impeller secures onto the shaft with a keystone.
  4. Your engine is equipped with heat exchanger (radiator)

The references that are listed here are trademarks that apply to the respective trademark owners. The references are used only for a reference purpose. Our product is compatible with these reference numbers. Please note that our product is an aftermarket product (non-OEM), unless otherwise stated.