Item Type: Fuel Cap Lock Material: Aluminum alloy Reference Part Number: K071 385 1234, 572.1036, SNV431089 Application: Fit for a diesel fuel tank with a 3 1/2in male pipe fill tube Fit for a special threaded TPI 5.5 fuel tank port Fit for Freightliner before 1984 Fit for Kenworth after 1984 Fit for Peterbilt Semi Truck before 1980 Fit for Western Star before 1983 Replacement for Peterbilt Semi Truck Models1Fitment: Fuel cap lock is replacement for Peterbilt Semi Truck Models, fit for diesel fuel tank with a 3 1/2in male pipe fill tube, fit for special threaded TPI 5. 5 fuel tank port. 2Part Number: Fuel tank filler cap lock replace part number are K071 385 1234, 572. 1036, SNV431089 for reference. 3Function: The fuel cap lock keeps your vehicle's fuel tank closed, providing a tight seal, improving fuel economy and reduces vapor emissions. 4Leak Proof: The fuel cap is equipped with a rubber seal to ensure no leakage, bringing you a reliable and safe use experience. 5Precise Material: Fuel tank cover lock is made of premium aluminum alloy, precise, strong, anti oxidation, long service life. 1 xFuelCapLock 2 x Keys