Heavy Duty Aluminum Bar and Plate Hydraulic Oil Cooler for Mobile and Industrial Hydraulics Core Dimensions (Finned area): 13.78" x 5.7" x 1.77" Inlet/Outlet: -12 SAE O-Ring Seal (3/4-16 UNF-2B) Overall Dimensions: 20.43" x 6.7" x 1.77" Replaces: Cool Line C-8, 4UJD3 Max Working Temp: 250F. 100% leak tested from the factory. Guaranteed fit and function.