If you call Happ Controls you can get a heavy duty one....it holds up way better than the black ones...we use em at work and I havent had to change one yet...I am in the process of replacing my black rubber ones with the white heavy duty ones as the black ones break...
Dont have an exact part number on hand...but if you tell them what you are looking for and that you want the HEAVY DUTY one, they should know what you are talking about......the one you are lookin for is white with steel belts.....
Lmao, just dont say steel belts to happ...they will deny having them...but when you get the invoice it will clearly say "Urethane/steel" lol