Farm Equipment - D21 muffler ideas

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D21 muffler ideas

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=45188
Printed Date: 11 Sep 2025 at 11:44pm
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Topic: D21 muffler ideas

Posted By: Bryan
Subject: D21 muffler ideas
Date Posted: 08 Feb 2012 at 6:17am

Anybody have any ideas for an under hood replacement muffler for a series 1 D21. Open to suggestions.
Thanks, Bryan

Replies:

Posted By: DougG
Date Posted: 08 Feb 2012 at 8:32am

Would a 190, [ no xt ] muffler work ?

Posted By: Bryan
Date Posted: 08 Feb 2012 at 9:48am

I think the 190 muffler is to short. I'm hoping somebody on here has tried some mufflers and came up with a solution.

Posted By: ALinIL
Date Posted: 08 Feb 2012 at 10:16am

Bryan - Try looking thru the catalog here. You might find a unit. I got a muffler thru my auto parts supplier who orderedit from their supplier.

http://www.walkerheavyduty.com/catalog/catalog_default.asp" rel="nofollow - http://www.walkerheavyduty.com/catalog/catalog_default.asp

Posted By: dpower
Date Posted: 08 Feb 2012 at 10:29am

MIne had a muffler on it it, not sure if it was original or not but it had been patched alot. IT even at one time sprung a leak and got my decal burned on the one side. I took it off and andy gubbels is making me a pipe to eliminate it. Darryl on here used a nelson muffler andhad to make the intake and outake tubes bigger on it but it work. Let me know if you find one that just bolts on cuz that would be pretty neat.

Posted By: 427435
Date Posted: 08 Feb 2012 at 12:23pm

Put a turbo and a straight pipe on it, but don't mess with the fuel pump!!!

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Mark

B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel,
GTH-L Simplicity

Ignorance is curable-----stupidity is not.

Posted By: nevans
Date Posted: 08 Feb 2012 at 9:04pm

Brtan ask darryl in washington he is putting one on that we got for him he can probably give yuo some help niel

Posted By: DarrylinWA
Date Posted: 09 Feb 2012 at 12:05am

Its a bunch of work, I will send you some photos if you give me your email address. But it is going out the correct spot in the hood !!!

Thanks Darryl

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B 10 Custom. Serial # 1001 D21, First D21 built 69 #4498 and Last D 21 Built #4609. 1946 MM UTU. And 2000, 2005 Pete's. AC custom Hauling.

Posted By: Bryan
Date Posted: 09 Feb 2012 at 6:08am

Darryl, Dpower sent me a picture of your muffler. Very nicely done. I see you modified the inlet and outlet. Did you have to modify anything else?
Thanks, Bryan