4020 Fuel pump leaking

Indiana Boy · Apr 6, 2009

I have a 66 4020 diesel with the glass bowl type fuel pump. It is leaking both around the gasket that holds the 2 halves of the pump together and also around the primer lever. When I checked a year or so ago, Deere only sold the newer type without the glass bowl as a replacement. I would like to keep mine original. Does anyone make original style pumps still or make rebuild kits for the originals? I may also be interested in a NOS pump if anyone has one. Thanks Jeff

Bob · Apr 6, 2009

Have you checked with your DEERE dealer?

jdparts.com shows 2 different KITS, RE524125 and RE527115. It LOOKS like the the RE527115 would be the more likely choice for diesel apps.

I can't verify FOR SURE that they are kits and don't sub to a complete pump. You might want to check it out.

Anonymous-0 · Apr 6, 2009

I don't think the kits have been available for a decade. I don't like the new pump either. So on my gas 4020, I went to an electric pump.

You might be able to slow the leaks by tightening the screws, but if the diaphragm is broken, its pumping fuel into the crankcase.

Gerald J.

4020 Fuel pump leaking

Indiana Boy

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Bob

Well-known Member

Anonymous-0

Well-known Member

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