ULTRA COOL TRANSMISSION OIL COOLER, UNIVERSAL -- 3/4" Thick, 10" Height, 15 7/8" Length, 3/8" Push-on Fitting Size, Ideal For Vehicles Up To "A" Class Motor Homes, Towing Up To 5000 Lbs., Effective And Economical Way To Keep The Transmission At Its Optimal Operating Temperature, High Efficiency Turbulators In Each Tube Direct The Fluid For Superior Heat Transfer.