Farm Equipment - Expansion plug for head on B tractor

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Expansion plug for head on B tractor

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=200929
Printed Date: 01 Dec 2024 at 12:40am
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Topic: Expansion plug for head on B tractor

Posted By: kevin LA-CA
Subject: Expansion plug for head on B tractor
Date Posted: 17 Apr 2024 at 10:00am

Does anyone know the dorman number for the plug in the head of a b?

It looks to be 1.225 x 3/8.

Is there a cross over number or application?

Replies:

Posted By: steve(ill)
Date Posted: 17 Apr 2024 at 12:48pm

I dont know... i just took the old plug to NAPA and got one that looked like it..

Your number of 1.225 is 25 thousands under 1-1/4 inch.... that would allow for a little CRUNCH when installing.

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Like them all, but love the "B"s.

Posted By: kevin LA-CA
Date Posted: 17 Apr 2024 at 6:11pm

Remeasured using better attention. Plug is 1.250" in diameter.

For reference dorman 555-023.

No leaks now.

Posted By: kevin LA-CA
Date Posted: 17 Apr 2024 at 6:27pm

Remeasured using better attention. Plug is 1.250" in diameter.

For reference dorman 555-023.

No leaks now.

Posted By: ACinSC
Date Posted: 18 Apr 2024 at 6:16am

On my D 15 I used a expansion plug from Napa, like Steve said. When I had the head redone machine shop put a freeze plug in.