Very popular with original equipment manufacturers for use on their towing applications, our Plate and Fin coolers feature strong furnace-brazed construction embossed turbulators which maximize heat transfer while also minimizing pressure drop. This unit is perfect for light to medium duty use and occasional towing. It greatly extends transmission life by preventing heat-related transmission failures, and improve shifting performance. Built with 5/8″ Inverted Flare Inlets and includes 3/8″ hose barb adapters. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16″ transmission cooler lines. All Derale coolers are rated at 250psi working pressure and 300psi burst strength Specifications Cooler style: Plate & Fin Construction: Aluminum GVW: 34000 BTU: 33000 Inlet size: 5/8″ inverted flare female inlets Fitting size: 3/8″ barb Width: 22-3/4″ Height: 8″ Overall Height (with brackets and inlets): 9-1/4″ Depth: 1-1/4″ Inlet to Inlet dim: 21-3/8″ Mounting: 15-3/4″, 17-3/4″, 8-1/2″ Hose size: 3/8″ Hose length: 4′ All Derale coolers are rated at 250psi working pressure and 300psi burst strength Turbulators maximize cooling & minimize pressure drop