1997 to 2005 years have two pumps available. Please verify that your pump has a cover diameter of 2.75" and uses a gasket.  If your pump has a 3" cover sealed with an o-ring use eBay item number 123901257689 or 123279555775

2.75" Cover Pump Major Repair Kit

This uses a 6 bolt cover with a 2-3/4" (70mm) diameter.

124223-42092 water pump impeller (has keyway groove to fit shaft drive key)
fits all Japanese built fresh water cooled ( anti freeze ) 2/3GMF's, 2GM20F's 3GM30F's up to 2005, all 3HM's

Will NOT fit 1997 and later  European made YEU Models. ( the serial number will start with E) 

Fits pumps 121575-42000 , 721575-42700 , 721575-42701 , 721575-42702

Fits Yanmar models: 2GM , 2GMF , 2GMFL , 2GM20F , 2GM20FVE , 2GMFY-E , 2GMFYE-E

3GM , 3GMF , 3GMFLE , 3GMFY-E , 3GMFYE-E , 3GMFYE-HE , 3GM30F , 3GM30FVE

3HM , 3HMF , 3HM35 , 3HM35C , 3HM35F

Replaces:

Yanmar Impeller Numbers  128296-42070 , 124223-42091 , 124223-42092 

Shaft   721575-42500  >  721575-42501  >  721575-42502

Nut   129579-42590

Washer (2) 124070-42420

Gasket   124223-42110

Bearing (2)  24107-062024

Lip Seal  124223-42080

Slinger  124223-42070

Retaining Ring  22242-000150

Retaining Ring  22252-000350

Cover Screw (6)  26203-04088

End Cover  121575-42150

Key   124223-42040

Cam   124323-42100

Cam screw / washer

Kit contains aftermarket parts.

Fits the following Yanmar Marine engines:

2GMF , 3GMF , 3GMDF  , 1980-83

2GM20F , 3GM30F , 1983-2005 freshwater cooled (antifreeze) models made in Japan. Will not fit 1997 and later  European made. ( the serial number will start with E on the European models)

3HM , 3HMF , 1980-83

3HM35 , 3HM35F , 1983-1992

Diameter: 50.8mm (2") 

Width: 22.1mm (7/8")

Shaft , keyed: 12.7mm (1/2")

6 Blades