VARIATOR BELT, SELF-PROPELLED, TRANSMISSION, GEARBOX RIDE-ON MOWER MTD 600 WITH SINGLE-BLADE DECK 30" (8-BLADE DISC) FIRST SERIES WITH 38" DOUBLE-BLADE DECK FIRST SERIES 600 DOUBLE BASKET, DOUBLE PIPE AND SIDE DISCHARGE 40" LAWN TRACTOR 600 DOUBLE-BLADE RIDE-ON MOWER 42", SIDE DISCHARGE SECTION: 5/8" x 48" Code: 520159 Original code: 7540370 MTD (COLUMBIA - WHITE - YARDMAN)