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HD7, HD9 and HD11

Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=76409
Printed Date: 28 Jun 2025 at 1:04pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: HD7, HD9 and HD11

Posted By: Gargoyle
Subject: HD7, HD9 and HD11
Date Posted: 05 Sep 2013 at 6:23pm

I'm looking for various undercarriage parts for an HD11E. I'm hearing that HD7 and 9 parts might fit. I'm also hearing the HD11B parts might or might not fit.

Is there a definitive answer?

Replies:

Posted By: gemdozer
Date Posted: 06 Sep 2013 at 4:22am

The hd7-hd9= hd11 use the same chaine but not the same link quantity and the hurly 11b was the same too

Posted By: CAL(KS)
Date Posted: 06 Sep 2013 at 5:23am

dont know where in missouri you are, but Zimmerman Tractor in Versailles Mo, has parts for HD7 and 9. Not sure if they salvage any Hd11. They have helped me on several occasions.

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Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20

Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

Posted By: Lazyts
Date Posted: 06 Sep 2013 at 7:45pm

Gemdozer is right- early HD11B, E, S, G and F, HD9 and HD7G all use the same rollers and track chain, just varied lengths- HD9 and HD11B, 38 links, HD11E 41 links, HD7G 37 links, etc. (Not to be confused with HD7 dozer, which was manufactured much earlier)

(HD11 was basically an upgraded HD9 with Allis Chalmers (Buda) engine)