Radiator. PART NO: A-AR61881. 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 3 rows of tubes. It is 24.75" tall and the core size is 19" wide. This radiator fits the John Deere Tractor 4030. Dim A (1)Core Size : 19.00" Wide Dim B (2)24.750" High Dim C (3)3 Rows of Tubes Dim D (4)10 Fins per Inch. . MODELS: John Deere TRACTOR: 4030.