Locking Diesel Fuel Cap 3.5" 5.5 TPI Vented for Kenworth Peterbilt Semi Truck

Locking Diesel Fuel Cap – 3.5 Inch, 5.5 TPI

Secure your compatible semi-truck diesel fuel tank with this locking fuel cap. Designed for selected heavy-duty truck fuel tanks with a 3 1/2-inch filler opening and 5.5 TPI coarse thread, it provides a locking closure and a vented design for compatible applications.

Features

• Locking design helps restrict unauthorized access to the fuel tank.
• Designed for compatible 3 1/2-inch fuel tank filler openings.
• 5.5 TPI coarse thread specification.
• Vented design for compatible diesel fuel tank systems.
• Suitable for selected heavy-duty semi-truck applications.
• Replacement reference numbers: 572.1036 and SNV431089, where applicable.

Applications

• Selected Kenworth trucks
• Selected Peterbilt trucks
• Selected Freightliner trucks
• Selected Western Star trucks
• Compatible diesel fuel tanks with a 3 1/2-inch, 5.5 TPI filler neck

Package Includes

• 1 x Locking Diesel Fuel Cap
• Keys and other accessories only as supplied with the selected package

Note: Please measure your existing fuel cap and filler neck and verify the thread specification before ordering. Fitment varies by truck model, year, and fuel tank design. Confirm whether your tank requires a vented cap. Do not force the cap onto the filler neck. Check the seal and locking mechanism after installation to help prevent fuel leakage.