DOP75-999 MTD Forward Drive Belt No. 754-0434. Aftermarket (OEM Quality) replacement Drive belt. Fits MTD built Rear Tine Tillers (1997 and later) model series 430, 440, 450. Size: 1/2" x 58 1/4". Replaces MTD part # 754-0434 or 7540434, 954-0434 or 9540434.