Doc's Auto Parts Fuel Filter DG3739 Cummins Reapply with each DEF fill-up

Reapply with each DEF fill-up for best results

A clean transmission filter means less heat

Jersey-lined hood

and EcoDiesel Engines

Doc’s Diesel Powerstroke ULV keeps your transmission running clean

Doc's Auto Parts Fuel Filter DG3739 Cummins Reapply with each DEF fill-upDocs Auto Parts Fuel Filters: Doc's Auto Parts Fuel Filters remove contaminants like dirt, rust, and debris, protecting fuel system components and ensuring peak engine performance. They optimize fuel flow and pressure, enhancing acceleration, fuel economy, and vehicle performance. With a focus on maximizing filtration media surface area, our high quality filters come complete with o rings as needed. Product Details: Designed with high efficiency media