RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip vs Aluminum Diesel Cap for 2019-2021 Dodge Ram 6.7L

Overall winner: RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip

Key Differences

Ronin Factory's combo (A) offers a magnetic attachment and an easy-grip DEF cap with broader model years (2013–2018) and a larger review base, while XJDAMZ's aluminum cap (B) targets 2019–2021 Dodge Ram 6.7L models with a precision, airtight fit and more polished appearance but has mixed feedback on magnet strength and removal ease

RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip

RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip

Ronin Factory • ★ 4.2/5 • Budget

Combo pack with a magnetic RAM diesel fuel cap and DEF cap. Keeps dirt and water out of the fill, with a smooth, easy-to-grip DEF cap and durable aluminum construction. Customers note secure magnetic attachment and OEM-like fit

Pros

  • magnetic attachment to metal surface
  • diesel-cap dirt and water protection
  • easy-grip DEF cap with smooth operation
  • aircraft-grade aluminum construction

Cons

  • may not fit 2019 models
  • some claims rely on compatibility with EVAP system
  • requires proper O-ring sizing for fit
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Aluminum Diesel Cap for 2019-2021 Dodge Ram 6.7L

Aluminum Diesel Cap for 2019-2021 Dodge Ram 6.7L

XJDAMZ • ★ 3.9/5 • Budget

Diesel fuel cap with precise seal to keep dust, water, and debris out. Notable for fit on 2019-2021 Ram diesel models; customer notes strong appearance and secure fit with some difficulty in removal

Pros

  • airtight and precision fit
  • dust and water protection
  • good appearance and fit on Ram diesel models
  • helps protect fuel system

Cons

  • magnet strength mixed feedback
  • ease of removal noted as difficult
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Head-to-Head

CriteriaWinner
Price Ronin Factory
Durability Tie
Versatility Ronin Factory
User Reviews Ronin Factory