The Murray 37X88 42-inch tractor deck drive belt is an original equipment replacement part. To ensure your outdoor power equipment is running in pristine condition you will want to regularly replace your mower belts. Belt 37X88 was designed to withstand aggressive applications heat oil and back idler pulley systems often found on outdoor power equipment. It delivers high-impact strength capacity and wear resistance. The replacement part will supply you will superior performance handling of heavy shock or pulsating loads. Created to fit mowers labeled as Murray Scotts and some select Craftsman. For belt installation routing and to ensure a proper fit to your outdoor power equipment please reference your owner’s manual.