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 5 rows of tubes. It is 30.125″ tall and the core size is 26.375″ wide. This radiator fits the John Deere Tractor 4840. (NOTE: replaces AR79458 or AR90472)nDim A (1) Core Size: 26.375″ WidenDim B (2) 30.125″ HighnDim C (3) 5 Rows of TubesnDim D (4) 10 Fins per InchnReplaces AR79458, AR90472 mega-cross: (1 to 8 of 8) nReplaces: AR79458 JOHN DEEREnAR90472 JOHN DEEREnCrossed From: AR5578 A & I MEGA-CROSSnAR90742 JOHN DEEREnNR9563 A & I MEGA-CROSSnTP-RE21895 A & I MEGA-CROSSnWN-RE21895 A & I MEGA-CROSSnWN-RE21895 A & I MEGA-CROSS sections and models: (1 to 1 of 1) nCooling Systems > Radiators and Related PartsnJohn Deere TRACTOR: 4840 available manuals: (1 to 2 of 2) nItem Number DescriptionnJohn Deere TRACTOR: 4840nA-JD-O-OMR65463 JD Operator Manual (Diesel)nA-SMJD202 John Deere Shop Manual Manufactured by D&D Power Drive