Motorad MGC212KAG Fuel Tank Cap

Fuel Tank Cap for Ford Super Duty Diesel Applications

Motorad MGC212KAG is a keyed-alike fuel tank cap built for diesel fuel systems that require a green cap and vacuum-only venting. It uses OEM-quality materials and is manufactured to meet state and federal emissions requirements.

Key Features

• Locking fuel tank cap with keyed-alike operation for simplified key management.
• Vacuum-only venting with pressure and vacuum relief valves to help control fuel evaporation.
• Plastic construction with a green finish for diesel fuel applications.
• OE supplier manufacturing standards for consistent fit and function.
• Neck diameter: 1.563 in; shell diameter: 2.688 in; cap depth: 2.500 in.

Detailed Description

This Motorad fuel tank cap is engineered for Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, Ford F-550 Super Duty, Ford E-350 Super Duty, Ford E-450 Super Duty, and Ford E-350 Club Wagon diesel applications listed in the fitment data. The keyed-alike design supports vehicles that use the same key pattern, while the locking construction adds a secure closure for the fuel filler opening. Part number MGC212KAG is also referenced by 9MGC212KAG, 703-1881, and 17510D for the same application.

Motorad’s Keyed Alike line focuses on replacement fuel caps that match OE-style requirements for emissions control and secure sealing. The pressure and vacuum relief valves are designed to reduce evaporative loss, which matters on diesel fuel systems where cap condition and sealing performance affect drivability and emissions compliance. Part number MGC212KAG appears across multiple Ford Super Duty diesel fitments, including 2004-2020 model years shown in the application data.

What It Is Used For

• Replacing a damaged or missing locking fuel cap.
• Addressing fuel vapor loss caused by a worn seal or relief valve issue.
• Restoring proper closure on a diesel fuel filler neck.
• Correcting emissions-related concerns tied to a faulty cap.
• Maintaining keyed-alike operation on supported Ford diesel applications.

Installation Notes and Tips

Verify the neck diameter, locking style, and green diesel-cap requirement before ordering. Confirm the application notes for your Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty, or E-Series model, since some fitments note tethered or non-threaded filler neck configurations. Compare the existing cap and filler neck to part number MGC212KAG to ensure the correct replacement.

Quality Assurance

Manufactured by an OE supplier using OEM-quality materials and safety standards. This fuel cap is built to pass state and federal emissions requirements and uses relief-valve engineering to help control evaporation.