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Power Fluid 821

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=159119
Printed Date: 04 Nov 2025 at 12:14pm
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Topic: Power Fluid 821
Posted By: victoryallis
Subject: Power Fluid 821
Date Posted: 17 Mar 2019 at 3:21pm
Is Power fluid 821 the same as 80W-90 “gear oil”?

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8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760


Replies:
Posted By: JP (nwOH)
Date Posted: 17 Mar 2019 at 3:26pm
No
821 is hydraulic

Posted By: ACinSC
Date Posted: 17 Mar 2019 at 3:45pm
I'm looking at my jug from TSC . It says trans/hydraulic fluid . Has Allis Chalmers 821 on the back . I put it in my D 15 everywhere but the engine . HTH

Posted By: SteveM C/IL
Date Posted: 17 Mar 2019 at 10:13pm
I think the viscosity is closer 20wt on power fluid. That lower number has nothing to do load carrying ability.


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