GM Genuine Parts locking fuel tank cap with 2 keys vs RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip
Overall winner: RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip
Key Differences
Choose Ronin Factory (A) if you want a combo diesel fuel cap and DEF cap with magnetic attachment, dirt/water protection and an easy-grip DEF cap — it has a higher rating and a lower listed price tier. Choose GM Genuine Parts (B) if you need a locking fuel tank cap built to GM OE specification and a theft-deterrent lock with two keys, but note mixed feedback on the lock mechanism
GM Genuine Parts locking fuel tank cap with 2 keys
Locking fuel tank cap engineered for a tight seal with a tamper-resistant lock. GM OE specification for fit and reliability; customers note solid functionality and value for money
Pros
- tight seal for fuel tank
- lock deters fuel theft
- GM OE specification
- includes 2 keys
Cons
- mixed reviews on lock mechanism reliability
RAM Diesel Fuel Cap + DEF Cap Combo (2013-2018) Easy Grip
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
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | Ronin Factory |
| Durability | Tie |
| Versatility | Ronin Factory |
| User Reviews | Ronin Factory |