Steering Arm (LH). PART NO: A-T21518. Dim A (1)Round bore w/ keyway. . MODELS: John Deere INDUSTRIAL/CONSTRUCTION: 300 John Deere INDUSTRIAL/CONSTRUCTION: 301 John Deere INDUSTRIAL/CONSTRUCTION: 400 John Deere INDUSTRIAL/CONSTRUCTION: 401 John Deere TRACTOR: 1020 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 1030 John Deere TRACTOR: 1040 John Deere TRACTOR: 1120 John Deere TRACTOR: 1140 John Deere TRACTOR: 1520 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 1530 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 1630 John Deere TRACTOR: 1641F John Deere TRACTOR: 2020 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 2030 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 2040 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 2120 John Deere TRACTOR: 2150 John Deere TRACTOR: 2155 (W/ SWEPT BACK FRONT AXLE) John Deere TRACTOR: 2240 (W/ SWEPT BACK FRONT AXLE).