D-17 Muffler
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=165917
Printed Date: 29 Aug 2025 at 1:37am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D-17 Muffler
Posted By: JD-Ohio
Subject: D-17 Muffler
Date Posted: 17 Nov 2019 at 2:25pm
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D-17 gas serial number 33833. DJ.s and Steiner.s list a muffler for serial numbers less than 32000, and one for serial numbers greater than 42000. But nothing for the numbers in between. What gives?
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Replies:
Posted By: DrAllis
Date Posted: 17 Nov 2019 at 2:56pm
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There are only THREE mufflers for a D-17 gas. The original muffler was the exact same as a WD45, was round, and attached with 2 bolts and was about 3 inches in diameter and this was prior to s/n 32000. The next muffler clamped to a pipe coming out of the exhaust manifold, and was round and about 4 inches in diameter and was prior to s/n 42000. The last muffler from s/n 42,001 and up were the OVAL muffler and is considered a series 3 or 4 muffler. This all being said doesn't mean someone hasn't changed manifolds or cut larger holes in the hood to accept something different.
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Posted By: SteveM C/IL
Date Posted: 17 Nov 2019 at 7:00pm
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The oval factory muffler was the nicest. Quiet power.
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Posted By: AllisFreak MN
Date Posted: 18 Nov 2019 at 7:31pm
Would sure like to find an oval Nelson muffler for a D17 series III. Nearly impossible though. They sounded so nice.
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'49 A-C WD, '51 A-C WD, '63 A-C D17 Series III, 1968 A-C One-Seventy, '82 A-C 6060, '75 A-C 7040, A-C #3 sickle mower, 2 A-C 701 wagons, '78 Gleaner M2
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Posted By: DrAllis
Date Posted: 19 Nov 2019 at 7:49am
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If you find a Nelson to a 180/185, graft that onto a D-17 gasser and you'll love the sound it has with less back pressure. The body is the same size. You just have to make a pipe adapter to slide over the pipe on the exhaust manifold to get things to match up.
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Posted By: AllisFreak MN
Date Posted: 20 Nov 2019 at 6:44pm
Thanks Doc, good to know. I really miss that Nelson sound.
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'49 A-C WD, '51 A-C WD, '63 A-C D17 Series III, 1968 A-C One-Seventy, '82 A-C 6060, '75 A-C 7040, A-C #3 sickle mower, 2 A-C 701 wagons, '78 Gleaner M2
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Posted By: Charlie175
Date Posted: 21 Nov 2019 at 5:45am
I see Steiner carries the Ovals, how do these sound?
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Charlie
'48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD
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Posted By: Joe(OH)
Date Posted: 21 Nov 2019 at 8:22am
Here is what I did. https://www.allischalmers.com/forum/topic157965.html" rel="nofollow - https://www.allischalmers.com/forum/topic157965.html
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Life is simpler when you plow around the stump.
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Posted By: Gary
Date Posted: 21 Nov 2019 at 8:48am
JD
Check out Nelson 18202T.
They cross reference it to Allis 70261975.
Gary
https://www.simplyfilter.com/18202t-nelson-global-products-muffler-p/18202t.htm" rel="nofollow - https://www.simplyfilter.com/18202t-nelson-global-products-muffler-p/18202t.htm
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or this one 05388t
https://www.simplyfilter.com/05388t-nelson-global-products-muffler-p/05388t.htm
https://www.simplyfilter.com/05388t-nelson-global-products-muffler-p/05388t.htm
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Posted By: AllisFreak MN
Date Posted: 21 Nov 2019 at 4:53pm
Thanks for the ideas guys. I'd love to find an oem oval Nelson with the offset outlet like they came with back in '63.
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'49 A-C WD, '51 A-C WD, '63 A-C D17 Series III, 1968 A-C One-Seventy, '82 A-C 6060, '75 A-C 7040, A-C #3 sickle mower, 2 A-C 701 wagons, '78 Gleaner M2
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