Just send an email to Hydro-Gear with the part number on the sticker attached with the transmission and they'll send you the exact replacement part number. I had to replace the fan on my Troy-Bilt zero turn a couple of years ago. The replacement part for my mower was also 72134, but there are...
I use a tie down strap around the idler to pull the spring. Then when the belt is on, I slide the strap from under the belt. It's even easier if you have two people.
I need an electrical diagram for a Troy-Bilt Zero turn. Here is the info. Does anyone have one that you email me?
Thanks.
Troy Bilt 17AF2ACP011 MUSTANG RZT 50 (2008)
Harness part number 725-04621
New Harness part number 925-04621A