Radiator Core (SN: H1000 > ). PART NO: A-AH536R. Our new radiator core is designed and built to precise dimensional specifications to ensure an exact fit. Each core is made of copper fins and a brass lockseam tube. The radiator core has 5 fins per inch and 3 rows of tubes. It is 15.55" tall and 14.17" wide. This radiator core fits multiple John Deere Tractor models. Dim A (1)A: 15.55" Core Height Dim B (2)B: 14.17" Core Width Dim C (3)3 Rows of Tubes Dim D (4)5 Fins per Inch. . MODELS: John Deere TRACTOR: H (SN: H1000 > ) John Deere TRACTOR: HN (SN: H1000 > ) John Deere TRACTOR: HNH (SN: H1000 > ) John Deere TRACTOR: HWH (SN: H1000 > ).