Farm Equipment - d 12 manifold

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d 12 manifold

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=191170
Printed Date: 01 Apr 2026 at 3:27pm
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Topic: d 12 manifold

Posted By: NNYACAL
Subject: d 12 manifold
Date Posted: 10 Oct 2022 at 7:45am

does anyone have a reasonable source for a d 12 exhaust manifold here on the forum

Thanks

NNYACAL

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G,IB,B,C,CA,RC,WC,WF,WD,WD45,D14,D17SERIES 1,2,4

Replies:

Posted By: TramwayGuy
Date Posted: 10 Oct 2022 at 10:07am

I’m curious why it a D-14 manifold wouldn’t work? Carburetor size?

Posted By: PaulB
Date Posted: 10 Oct 2022 at 10:26am

The D10/12 manifold are pricey no matter where they are from. The D10/12 manifold sets very close to the head much like the B,C,CA manifold. The D14/15 manifold sets out from the head much further and won't allow the holes in the hood to line up with the exhaust and the air cleaner won't fit.

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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY

Posted By: Acdiesel
Date Posted: 10 Oct 2022 at 10:41am

Here's a guy on Facebook market place that's parting out a series 3 D12.

see link:

https://www.facebook.com/marketplace/item/503899421526734/%20" rel="nofollow - https://www.facebook.com/marketplace/item/503899421526734/

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D19 Diesel,D17 Diesel SER.3
2-D14, 2-D15 SER.II WF/NF
D15 SER.2 DIESEL
D12 SER.I, D10 Ser.II
2-720'S D21 Ser. II

Gmc,caterpillar
I'm a pharmacist (farm assist) with a PHD (post hole digger)

Posted By: Bill Deppe/AC Salvag
Date Posted: 10 Oct 2022 at 10:50pm

Have a couple new units, $275 + s&h

Posted By: Larry in NC
Date Posted: 11 Oct 2022 at 4:27pm

I have a couple of used ones, one would be an easy repair. One port would need to be built up with weld. $50 shipped to you if you are interested in going that route. I can send pictures.

Posted By: allis1221G
Date Posted: 11 Oct 2022 at 5:08pm

A manafold on 14 will work, but the air cleaner tube will not line up with the hole on hood.