Oil filters are simple yet necessary. Without one, your truck won’t accelerate as fast or run like it should. That’s why aFe designed the Pro Guard D2 Oil Filter for your Ford Powerstroke. This filter has high flowrates and outstanding filtration, making sure that your trucks engine lasts. This oil filter is constructed with a high strength steel canister and a heavy-duty coil spring. The canister features a 3/8" nut/ratchet drive with a 1" square boss for an easy removal. Also included is a built-in seal for a leak-free installation.