Farm Equipment - Need Help-D-21 hydralic pump

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Need Help-D-21 hydralic pump

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=49735
Printed Date: 21 Aug 2025 at 11:08am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: Need Help-D-21 hydralic pump

Posted By: b170dr
Subject: Need Help-D-21 hydralic pump
Date Posted: 28 Apr 2012 at 5:56pm

The bottom driven gear with the spines. Gear 11/16 wide. Is it the same gear as 190. The gear that it splins into has same parts number as 190. But the bottom driven gear has a differnt parts number. I need the driven gear. If anyone can help, would sure appriate. Thank you, Roger

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'64 B-10, '58 D-14, '60 D-15D, '58 D-17D, D-19, 170, 2-185D, 190, 68 D-21 11, 72-220, 7000,7030, F-2 G,w/5 Heads,L-2 G, 330 No-Till

Replies:

Posted By: DrAllis
Date Posted: 28 Apr 2012 at 7:42pm

Not sure I understand your description. If this is a triple section pump (3-point hitch and Traction Booster) the front pump gears top and bottom (lifting section) are different (wider) than a 190. The middle section gears top and bottom (traction booster section) are the same as a 190. The rear section top and bottom (power steering section) are the same as a 190.