60mm Aluminum Racing Radiator Stop Leak For Jeep Cherokee XJ/Wagoneer 2.5L 4.0L 1991-2001 Silver Inlet Diameter: 1.25 Outlet Diameter: 1.5 Trans Cooler Details: 5/8-18 Straight Thread Full Aluminum High Performance, 30% more Extra Flow Super capacity than your stock cooling, great performance upgrade For Jeep Cherokee XJ / Wagoneer 2.5L 4.0L 1991-2001 Core Size: 10.82&#034; x 30.9&#034; x 2 1/2&#034; Overall Size:12.4&#034; x 35&#034; x 2 3/4&#034; Inlet Diameter: 1.25 Outlet Diameter: 1.5 Trans Cooler Details: 5/8-18 Straight Thread Professional Installation is Highly Recommended (No Instruction Included) Full Aluminum High Performance, 30% more Extra Flow Super capacity than your stock cooling, great performance upgrade