jackcobb 11 Posted September 27, 2015 I have two mower deck belts, one is for a 720 and the other a 5020. I didn't mark which one goes with what. And both decks are off the tractors. Does anyone know the part numbers of either of these belts?? Thanks Share this post Link to post Share on other sites
isetta 50 Posted September 27, 2015 It has been awhile since I replaced the deck drive belt on my Powermax / 720. My official rotary mower parts catalog shows "V" belt 172420 and at some point after that book was printed it shows 1657044. The blade drive belt under the covers on the deck shows as a 172444. I have been using a NAPA A114 which is listed as 1/2" x 116" and it fits very well. I am on my second season of mowing so time will tell how long it lasts. Share this post Link to post Share on other sites