Farm Equipment - 80r mower belt

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80r mower belt

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=129168
Printed Date: 24 Oct 2025 at 3:08pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com

Topic: 80r mower belt

Posted By: rustyorange45
Subject: 80r mower belt
Date Posted: 24 Sep 2016 at 2:36pm

I broke the belt on my mower. Agco part number on belt is 70804201 this crosses over to a c103 belt (7/8 x 107). I ordered a c103 belt but it is too loose. Has anyone had this problem before and what size belt did you use.

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1953 WD45 WF/Model 90 Loader, Oxnard Rear Blade, 80R Mower, Model 209 Disc, WD Rear Mounted Scoop, Model 184 & 160 Rotary Mowers, 1952 CA NF/L306CA mower, 1953 CA WF/Model 8 Loader.

Replies:

Posted By: shameless (ne)
Date Posted: 24 Sep 2016 at 3:44pm

if you have a belt idler pulley, replace it with a larger one!

Posted By: Clay
Date Posted: 24 Sep 2016 at 6:44pm

Never had a problem with the C103 belts I have installed on 80R mowers.

Are your pulleys worn out?

Posted By: shameless (ne)
Date Posted: 24 Sep 2016 at 6:51pm

I've found that different belt maker companies belts aren't always the same! even tho they say they are! (maybe they use china made measures too)? lol

Posted By: Gary Burnett
Date Posted: 24 Sep 2016 at 7:02pm

Think I was using C102 belts on my 80R mowers