Radiator. PART NO: A-AL37566. Our new radiator is designed and built to precise dimensional specifications to ensure an exact fit. Each radiator has a stamped brass tank, undergoes a rigorous quality inspection, and is 100% leak tested. The radiator has 10 fins per inch and 4 rows of tubes. It is 24.312" tall and the core size is 18.5" wide. This radiator fits multiple John Deere Tractor models. (NOTE: Replaces AL31238) Dim A (1)Core Size: 18.500" Wide Dim B (2)24.312" High Dim C (3)4 Rows of Tubes Dim D (4)10 Fins per Inch. . MODELS: John Deere TRACTOR: 2940 John Deere TRACTOR: 2950 John Deere TRACTOR: 3040 John Deere TRACTOR: 3140.