Radiator. PART NO: A-RE21897. 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. This radiator has 10 fins per inch and 4 rows of tubes. It is 29.125" tall and the core size is 21.5" wide. This radiator fits the John Deere Tractor 4440. Dim A (1)Core Size: 21.50" Wide Dim B (2)29.125" High Dim C (3)4 Rows of Tubes Dim D (4)10 Fins per Inch. . MODELS: John Deere TRACTOR: 4440.