JOJOY LUX Diesel Fuel Cap & DEF Lid Set for 2019–2024 Ram 1500/2500/3500 — Green Aluminum, Magnetic & Sealed O‑Ring Duo

Durable, anodized aluminum diesel fuel cap and matching DEF lid with a strong magnet and O-ring sealing, made to replace your factory plastic caps on 2019–2024 Ram 1500, 2500, and 3500 trucks.

If you want a longer-lasting, easier-to-handle replacement for your Ram's plastic fuel and DEF caps, this JOJOY LUX duo swaps directly into the factory openings while adding corrosion-resistant aluminum construction, a bright color code for quick identification, and a magnetic hold for convenient placement during refueling. The pair is mill-finished from 6061 billet aluminum, anodized green for the diesel side and blue for the DEF side, and sized to match OEM dimensions so installation is quick and worry-free.

How does this cap pair protect my engine and fuel system?

These caps stop rain, dust, and road grime from entering the fuel tank and DEF reservoir, which helps keep filters and injection components cleaner. The included O-rings improve the seal compared with worn plastic caps, lowering the chance of contamination or warning lights triggered by poor sealing.

• Sealing O-rings included to reduce leaks and vapor intrusion
• Billet 6061 aluminum resists corrosion better than plastic
• Precision 3D-scanned fit to match original cap dimensions

Why choose a magnetic diesel cap instead of the original plastic one?

The diesel cap has an integrated neodymium magnet that lets you attach it to the steel body while filling up, keeping it out of the way and reducing risk of loss. The metal construction also offers a firmer texture and longer lifecycle than stock plastic, so you'll notice easier handling and less wear over time.

• Strong permanent magnet holds cap on vehicle during refueling
• Textured aluminum grip requires less force than brittle plastic
• Brilliant green color prevents confusing diesel cap with gasoline

Will these caps fit my Ram without modification?

Yes — JOJOY LUX designed the caps from 3D-scanned original dimensions and validated them with multiple fit tests to ensure a direct replacement. Installation is a simple twist-on swap; the DEF cap also includes an anti-loss tether for added convenience.

• Compatible with 2019–2024 Ram 1500, 2500, 3500 diesel models
• Same size as original caps, no drilling or adapters required
• Quick installation: remove old caps and twist these into place

How does the finish and durability compare to stock caps?

The lids are machined from 6061 aluminum and anodized — the finish resists chipping and corrosion from road salts, fluids, and sunlight better than injection-molded plastic. That durability translates into longer service life and a consistent appearance as the vehicle ages.

• Green anodized diesel cap and blue anodized DEF cap resist corrosion
• Lightweight metal construction provides toughness without excess weight
• Included O-rings and quality machining help prevent premature wear

Who is this for? This JOJOY LUX diesel + DEF cap set is ideal for Ram owners who want a robust, easy-to-use upgrade to factory plastic caps — especially drivers who work outdoors, haul heavy loads, or simply prefer a durable, color-coded replacement that’s quick to install. It’s also a good pick for anyone who wants magnetic convenience while refueling and a long-lasting finish to match aftermarket styling.