ricksrj58 274 #1 Posted 6 hours ago what size drive belt do i need ? Share this post Link to post Share on other sites
Sparky-(Admin) 26,195 #2 Posted 4 hours ago It’s the standard drive belt that all the 300 & 400 series 8 speeds use…WH Part#7473. I don’t know the actual size though. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 12,418 #3 Posted 4 hours ago Tractor drive belt 107939 replaced by 93-9809 - (HB x 83.5" or 5/8" x 83-1/2") Gates replacement 6983 Share this post Link to post Share on other sites
Ed Kennell 46,816 #4 Posted 1 hour ago This belt works great on my 310-8. I don't know if the 520 requires the 83 1/2 ", but the belts from TSC are returnable for a 100% refund. 1 Share this post Link to post Share on other sites
953 nut 68,207 #5 Posted 46 minutes ago 31 minutes ago, Ed Kennell said: belt works great on my 310-8. @Ed Kennell, the Hydros have a much larger drive pulley on the engine than on an 8 speed requiring an inch longer belt, 5/8" X 82" for 8 speeds and 5/8" X 83" for a Hydro. 1 Share this post Link to post Share on other sites
Ed Kennell 46,816 #6 Posted 12 minutes ago 30 minutes ago, 953 nut said: @Ed Kennell, the Hydros have a much larger drive pulley on the engine than on an 8 speed requiring an inch longer belt, 5/8" X 82" for 8 speeds and 5/8" X 83" for a Hydro. Good to know Richard. But does his 520-8 use the same 82" belt as a 310-8 ? Share this post Link to post Share on other sites
