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What's the difference

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=119859
Printed Date: 25 Aug 2025 at 11:04pm
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Topic: What's the difference
Posted By: bobkyllo
Subject: What's the difference
Date Posted: 03 Mar 2016 at 5:07pm
What's the difference between an allis d14 and the allis d15? I can find all kinds of parts for the 15 but struggling to find anything for the 14. I haven't given up on the guy that offered me his used fenders. I just hate to buy that far away the shipping will eat up my budget



Replies:
Posted By: Acdiesel
Date Posted: 03 Mar 2016 at 6:03pm
If your talking sheet metal the fenders on the D14,D15 series I and II are the same size. I never put a tape measure on mine but I think the frames a little wider on the D15.
the D14 and D15 series I both had the 149 CI engines, but the d15 had a higher compression ratio: 7.75 to 1 and the rated engine RPM was increased to 2000 instead of 1650.
I'm really on sure on the transmissions.

Dan

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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: Calvin Schmidt
Date Posted: 03 Mar 2016 at 7:30pm
A D-14 and D-15 Series l do not share any sheet metal except for the fenders and the panels under the gas tank. D-15 l and D-15 ll do not share hood panels and the fenders on the Series ll has holes for headlights and the rad shell does not. The D-14 transmission  is the same as the D-15.  Part numbers for some of the gears in the D-14 are updated to the D-15 part number. I have a D-15 Series l diesel with a D-14 transmission.

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Nothing is impossible if it is properly financed


Posted By: bobkyllo
Date Posted: 03 Mar 2016 at 8:11pm
Thanks guys that helps a lot


Posted By: jiminnd
Date Posted: 04 Mar 2016 at 10:14am
I don't know if this would interest you but I have a D14 that is complete but stuck I would sell, it is not perfect but maybe you could use for parts.

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1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner)



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