14 Row Transmission Oil Cooler Universal 11"x4.2"x0.75" (280x107x19mm) inlet/outlet 9.6mm 3/8" Barb Tube & fin Aluminum. oil cooler kit. 19mm Plate & Fin Transmission Cooler. The dimple plates re-direct the oil flow, and in conjunction with the unique louvered fin design provide highly efficient cooling with low-pressure drop.