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ANOTHER WD/WD45 hydraulic pump question
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AC WD45 View Drop Down
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Joined: 28 Sep 2009
Location: Mid Michigan
Points: 2077 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC WD45 Quote  Post ReplyReply Direct Link To This Post Topic: ANOTHER WD/WD45 hydraulic pump question
    Posted: 27 Oct 2025 at 7:49pm
I was given a pump off what I believe was a WD. Looking at the two they appear to be the same pump. This pump is known good, and I believe mine on my WD45 is starting to get weak/noisy. However I have read somewhere that WD lacks the traction booster system. I assume this would be alleviated by swapping the valve body on the top of the pump. Am I correct in my assumption? Or is there something totally different abojt the two that I am missing?

Edited by AC WD45 - 27 Oct 2025 at 7:50pm
German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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HudCo View Drop Down
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3948 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2025 at 7:58pm
does it have a control rod going down to the hitch on the wd pump?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22140 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2025 at 7:58pm
A true model "WD" tractor doesn't have the Traction Booster GAUGE. In order for operators to better utilize the TBoost system, the WD45's all had a pressure gauge so you could see what was going on.
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AC WD45 View Drop Down
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Joined: 28 Sep 2009
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Points: 2077 		Post Options Post Options   Thanks (0) Thanks(0)   Quote AC WD45 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2025 at 7:59pm
Originally posted by DrAllis DrAllis wrote:

A true model "WD" tractor doesn't have the Traction Booster GAUGE. In order for operators to better utilize the TBoost system, the WD45's all had a pressure gauge so you could see what was going on.
so with that, it should be the same pump i suppose that will be a spring project before I put the loader back on.
German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Joined: 12 Sep 2009
Points: 22140 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 27 Oct 2025 at 8:07pm
Pumps interchange, yes.
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8678 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 28 Oct 2025 at 8:19am
They made a different TB cam lever for the 45's. Different profile? I forget what dad said the deal was. Interchangeable but not the same. 
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