Oil Cooler - 2" Diameter, 8" Length, 1-1/4" Hose ConnectionAll oil coolers feature seamless 1 4" tubing and press fit copper baffles greatly increasing the heat transfer ratio. The shells of these coolers are seamless and coupled with a high density cast end cap. You won't find these features in the expensive copies that have no baffling, use seamed tubing, and are guaranteed to either burst or corrode under heat and pressure. Don't risk your engine's life with a poorly constructed cooler, it's what's inside