Track Assembly, Extreme Duty U7 - 71.1 cm (28 in) Single Grouser 0132 Drive Sprockets, Chains & Shoes 903MH Tracked Harvester (PIN: 1T0903MH_ _C271505 - 317981)(PIN: 1T0903MH_ _D271505 - 317981) PC11274 in HARVESTER 903MH