Motorad MGC934T Fuel Tank Cap

Motorad Tethered Diesel Fuel Tank Cap

The Motorad MGC934T is a black plastic diesel fuel tank cap built to OE supplier standards for select Mercedes-Benz Sprinter vans. It uses pressure and vacuum relief valves to help control fuel evaporation while maintaining the correct sealing function for the tank neck.

Designed for diesel applications, this tethered fuel cap supports emissions compliance and helps replace a worn or leaking cap on the Mercedes-Benz Sprinter 1500, Sprinter 2500, and Sprinter 3500 where listed below.

Key Features

• Black plastic construction
• Tethered design for the fuel filler neck
• Diesel fuel tank cap
• Non-locking, non-vented design
• 1.85 in neck diameter
• 0.63 in cap depth
• Built to meet state and federal emissions requirements
• Pressure and vacuum relief valves help reduce fuel evaporation

Product Details

Motorad MGC934T is part of the Tethered line, a product line focused on fuel caps with an attached retention design for vehicles that require a tethered cap. This fuel tank cap is manufactured with OEM-quality materials and safety standards by an OE supplier, and it is intended for diesel fuel systems that need a precise seal at the filler neck. This part cross-references Mercedes-Benz OE numbers 0004703205 and 9064700305 for the same application.

Fits 2023 Mercedes-Benz Sprinter 1500, N/A. Fits 2023 Mercedes-Benz Sprinter 2500, N/A. Fits 2016-2018 Mercedes-Benz Sprinter 2500, N/A. Fits 2016-2018 Mercedes-Benz Sprinter 3500, N/A. Fits 2015 Mercedes-Benz Sprinter 2500, N/A. Fits 2015 Mercedes-Benz Sprinter 3500, N/A. The MGC934T is also a direct search match for Mercedes-Benz Sprinter diesel fuel tank cap with tether, black, and Mercedes-Benz Sprinter tethered fuel cap replacement.

Common Issues This Part Addresses

• Fuel odor caused by a leaking or worn cap seal
• Evaporative emissions faults related to a poor tank seal
• Cap retention problems when the original tether is damaged or missing
• Incorrect fitment from using a cap with the wrong neck diameter
• Fuel vapor loss from a cap that no longer holds pressure or vacuum correctly

Installation Notes

Verify the fuel filler neck diameter before installation and confirm the vehicle uses a diesel, tethered cap. Inspect the sealing surface on the tank neck for dirt, damage, or deformation before installing the new cap. After installation, tighten the cap until it seats properly and confirm the tether routes without binding.

Quality Assurance

Motorad manufactures this cap to OE supplier standards and to pass state and federal emissions requirements. The pressure and vacuum relief valve design is intended to support proper fuel system sealing and evaporation control on the listed Mercedes-Benz Sprinter applications.