Farm Equipment - 6 Bolt Hub D17 Series 2

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6 Bolt Hub D17 Series 2

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=210548
Printed Date: 28 Mar 2026 at 11:45am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 6 Bolt Hub D17 Series 2

Posted By: AaronSEIA
Subject: 6 Bolt Hub D17 Series 2
Date Posted: 28 Mar 2026 at 6:38am

What does it take to put 6 bolt hubs on the front of a D17 Series 2? From the 6 times I've read the parts book all the bearings and cones are the same. The only difference is the hub cap and seal. I always thought one bearing was different and guys on Facebook are telling me the same, but the parts book doesn't back that up.

AaronSEIA

Replies:

Posted By: DrAllis
Date Posted: 28 Mar 2026 at 7:44am

It's been too many years ago, but I believe it was always the (larger) inner bearing and cup that were different. The outer bearing/cup remained the same. The six bolt hub design was for more weight carrying capacity. Use the series 4 parts book and then a 170 parts book ( 6-bolt only) and you'll kind of see that. On that larger inside bearing they listed two different bearing cones ( 70047751 and 70209899), but only one cup. I don't know why. Maybe one number was discontinued and it subs up to the other number ?? I also see the original 6 bolt hub was 70236706 and then the later was 70261418. I think old was a screw on cap and the later was a drive on cap.

Posted By: AaronSEIA
Date Posted: 28 Mar 2026 at 10:02am

Interesting. The Series 4 parts book lists the following numbers:

hub 70261418

outer cup 70209983

outer cone 70209926

inner cup 70209987

inner cone 70222214

Oddly that hub number calls for a drive on cap but the aftermarket world seems to have threaded it for the screw on one.

All those part numbers are the same for the 5 bolt hub.

AaronSEIA