Quality Made To FSP Specifications Rotary Belt. 5/8" X 53" The 754-0280 belt is used on older 600 series variable speed models. Primary Drive belt, Engine pulley to variable drive pulley. Used on vari-drive MTD made LT’s. This is the primary belt or the belt going from the engine to the variable drive pulley Replaces MTD, Cub Cadet, White, Yard Man, Troy Bilt; belt number 754-0280 and 954-0280. Same as 754-0280A, 954-0280A.  To ensure this part goes with your machine, verify by the model number and serial number, normally found under the seat of your riding mower.