1568 14M 55 D&D Powerdrive 14M Single Replacement Timing Belt model SCZ72V 34FX One New Aftermarket Replacement Spindle One New Aftermarket Replacement Spindle Repair Kit for Murray Lawn Tractors (1982 and Older Models) This 12 volt direct drive starter motor is an aftermarket replacement for the Bosch Iskra Letrika MAHLE unit used on Case IH Because of their round teeth HTD timing belts mesh accurately with their associated pulley grooves to eliminate belt slippage and speed variations Round curvilinear tooth profile increases the distribution of tension on the timing belt allowing significantly higher horesepower ratings