Mopar Diesel Fuel Cap - 5th Gen - Ram 1500/2500/3500

Note (Engine): Designed for Diesel engines only. Not intended for gasoline-powered vehicles.

Protect your Ram 1500/2500/3500's fuel system with the Mopar Diesel Fuel Cap — a factory-engineered non-locking cap built to seal diesel fuel fillers and keep contaminants out between fill-ups.

Diesel-Specific Design: Engineered exclusively for Diesel-powered Ram 1500, Ram 2500, and Ram 3500 trucks — ensuring a precise fit and proper seal on diesel fuel filler necks.

Contaminant Protection: Seals the fuel filler opening to prevent dust, dirt, and debris from entering the fuel system — helping maintain fuel cleanliness and protect downstream components.

Ergonomic On/Off Design: Features an easy on/off ergonomic design that makes removing and replacing the cap quick and effortless — even with gloves on or in cold weather conditions.

Fuel Area Cleanliness: Helps keep the fuel filler area clean and tidy between uses — reducing the chance of debris or moisture migrating into the tank during fueling stops.

OEM Fit & Finish: Built to Mopar factory specifications for a seamless, vehicle-specific fit — no modification or adaptation required for a clean, factory-quality result.

The Mopar Diesel Fuel Cap is the smart upgrade for Ram 1500/2500/3500 Diesel owners who want reliable filler protection, an easy-to-use design, and the confidence of genuine Mopar engineering every time they pull up to the pump.