BobR 1 #1 Posted 3 hours ago I have tried searching for an answer to my question on this site, but struggling. My question is this - what drive belt (engine to 8-speed transmission) do I need for my 1979 C121 (91-12K801) tractor? I want to order one without taking the old one off and measuring it (it's summer here and everything is growing fast). I have read that it's a 7478, but I have also seen 7473, which is correct? 1 Share this post Link to post Share on other sites
nylyon-(Admin) 8,964 #2 Posted 2 hours ago Welcome to the forum, it looks like the 7478 is the correct belt 1 Share this post Link to post Share on other sites
pfrederi 20,653 #3 Posted 2 hours ago I think you nay have misread the diagram The 7478 is for a hydro (see the top pulley picture) Parts diagram coverdmore than on etracto. Gear drives are 7473 the bottom # 6 2 Share this post Link to post Share on other sites
DLF 70 #4 Posted 2 hours ago (edited) I buy my 7473 Belts. from Tractor Supply ( 5/8" x 82" ) .Aramid Blue Belt. Lee1977 Edited 1 hour ago by DLF 2 1 Share this post Link to post Share on other sites
nylyon-(Admin) 8,964 #5 Posted 2 hours ago 7 minutes ago, pfrederi said: I think you nay have misread the diagram The 7478 is for a hydro (see the top pulley picture) Parts diagram coverdmore than on etracto. Gear drives are 7473 the bottom # 6 This is why we have the pro’s here, thank you for the correction 2 Share this post Link to post Share on other sites
953 nut 66,527 #6 Posted 2 hours ago We are here to help. If you have the time please introduce yourself and tell us a bity about your Wheel Horse story. https://www.wheelhorseforum.com/forum/77-euro-introductions/ Share this post Link to post Share on other sites
