This will not fit Closed Cooling ( antifreeze ) Models

If your model has fresh water cooling (antifreeze) add F to the end of your model number.

This fits a 6 bolt cover with a 2-1/4" (58mm) diameter and uses a gasket.

Will not fit fresh water cooled or European built models.

If you do not have a press or think you may need a shaft, here is a link that has the shaft assy with the bearings pressed on. Major Repair Kit with Shaft 124070-42061 for Yanmar Sea Water Pump 128270-42000  eBay item number: 114677504412

https://www.ebay.com/itm/114677504412?hash=item1ab34fd99c:g:PioAAOSwbdxgJXEM

Major pump repair kit similar to Yanmar K28270-42000

Replaces:

Cam   104211-42050

Cover  104211-42080

Lip Seal  104211-42100

Slinger   104211-42110

Plate  104211-42120  ( bearing cover )

Bearing (2)  24107-062004  ( A press is required to properly replace )

Spacer   104211-42130  ( bearing spacer may be steel or copper )

Retaining Ring   22252-000300

Impeller  104211-42070  ,  104211-42071  , Sierra 18-8952

Gasket   104211-42090

Stainless Screws  6 cover , 1 cam

If you do not need the complete kit, send me a message with your needs and I will send an offer for a custom kit.

104211-42071 < 104211-42070 water pump impeller (has drive pin that fits slotted shaft) fits all YS series, all Japanese built raw water cooled 2/3GM's, 2GM20's, 3GM30's up to 1996 & 2QM15. 

Fits Yanmar: 

2GM , 3GM , 3GMD , 1980-83

2GM20 , 3GM30, 83-05 raw water cooled (no antifreeze), made in Japan. Will not fit 1997 and later  European made. ( the serial number will start with E on the European models)

2QM15 , 1977-80

Pump numbers: 128270-42000 , 128270-42001 , 128270-42002 , 728270-42000 , 728270-42001 , 728270-42002

Contains aftermarket parts.

Impeller Specifications

Diameter: 40mm (1.58") 

Width: 19mm (3/4")

Shaft: 9.5mm (3/8")

6 Blades

1st Class mail may be delayed. So I am not offering it on this listing.