Fuel Filters | Filters | NAPA Filters Improved economy and tightened emission standards require increased cylinder combustion pressures, which demand cleaner fuel intake. Look to NAPA fuel filters for new ways to filter out even the smallest particles of rust, scale, dirt and water that can compromise the life and performance of your engine.Heavy-Duty Fuel Filters · Filter Lookup · Light-Duty Fuel Filters · Oil Filters NAPA Gold Fuel Pump Filter Spin-On Enhanced Cellulose Buy NAPA Gold Fuel Pump Filter Spin-On Enhanced Cellulose - FIL 4348 online from NAPA Auto Parts Stores. Get deals on automotive parts, truck parts and more.Filter Style: Spin-on Fuel FilterGasket I.D. (mm): 61 mmGasket I.D. (Inches): 2 in.Gasket O.D. (Inches): 2 in.