Farm Equipment - Lift Pump for WD45D

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Lift Pump for WD45D

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=211283
Printed Date: 07 Oct 2026 at 9:35pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Lift Pump for WD45D

Posted By: pdh
Subject: Lift Pump for WD45D
Date Posted: 05 Jun 2026 at 9:41pm

About 10 years ago a member of this forum was good enough to sell back to my father a WD45D that my father traded off at his grandfather's dealership back in 1970 or so. That WD45D was "my" tractor when I was growing up. I inherited it when Dad died a few years back and it is finally setting in my shop. The tractor ran very well when Dad got first got it back, but Dad's health failed soon after and it sat without running for more than 5 years. When I drained the oil i found fuel in the pan. Research leads me to suspect that the lift/supply pump is a probable source of the leak. Anybody know where i can find a replacement?

Replies:

Posted By: Bud(WI)
Date Posted: 12 Jun 2026 at 5:52am

Have you seen Tom's site? https://www.allis01.com/" rel="nofollow - https://www.allis01.com/

He has a lot of pictures and info on these injector pumps, including a suspect o-ring that can let fuel into the oil. https://www.allis01.com/fossto/56WD45D/ac-wd45d-PSB.html" rel="nofollow - https://www.allis01.com/fossto/56WD45D/ac-wd45d-PSB.html

Posted By: pdh
Date Posted: 12 Jun 2026 at 6:25am

Thanks for that link. I sent the pump off on Monday to a shop my dealer recommended.