RAM Jeep Diesel DEF Fill Cap, 2007.5-2025

Keep your DEF filler neck contaminants-free with this precision CNC-machined billet aluminum fuel cap. Featuring a high-quality Viton O-ring seal, it provides a secure, airtight fit that protects your DEF system from contaminants like dust, dirt, and moisture.

The fuel cap also includes a powerful neodymium magnet on the bottom, allowing for easy adhesion to body panels during refueling.