Yanmar SVE8 - 1974-76 Horizontal
Yanmar SB8 - 1976-80 Vertical
Yanmar YSE8 - 1974-76 Horizontal
Yanmar YSB8 - 1976-77 Vertical
Commercial parts to repair the Yanmar water pump can be purchased from most bearing supply shops. Note the steel springs on the lip seals need to be replaced before fitting by replacing with an O ring 10-25-7
Seal TC12382 2 off
Bearing 620022 2 off
O Ring 1300-30 1 off
O Ring 10-25-7 2 off (ID-OD-Wall Diameter)
Impeller Yanmar 104211 - 42070
Johnson 09-806B-1
Bukh 610G0092
Volvo 803729 875807-8
Drofin 300210
Renault Same as Drofin
All the above impellers are 3/8" Jabsco and are interchangeable. A small supply is available from
Geoff Raebel at $35 each plus postage raebel.g@iinet.net.au
Yanmar 2GM/3GM commercial water pump parts
I noticed in the "Maintenance" section of the website there are details of aftermarket parts for the Yanmar 8hp engine water pumps. I thought it might be useful to someone to know the details for the 2GM/3GM series (so they spend about $15 instead of several times that on OEM bits).[These parts are from the likes of CBC Bearings]
The bearings are: NSK 6200ZZCM NS7S 605
The seal is : NOK AEO279A
And of course you need to replace the seal spring with an O-ring - the bearing shop will do that for next to nothing.
Cheers, Graeme