PPE Diesel DEF Fill Cap

2007–2025 Dodge Ram / 2014–2022 Jeep Grand / 2020–2023 Jeep Wrangler / 2021–2023 Jeep Gladiator

273005000

Overview:

The PPE Diesel DEF Fill Cap is a precision-engineered replacement cap designed specifically for diesel-powered Dodge Ram, Jeep Wrangler, Jeep Gladiator, and Jeep Grand models spanning from 2007 through 2025. This high-quality fill cap safeguards your Diesel Exhaust Fluid (DEF) system by providing a secure, contaminant-resistant seal. Ideal for diesel truck and SUV owners who demand durability and reliability, this cap helps maintain the integrity of your DEF system, ensuring optimal emissions control and vehicle performance.

Whether you’re a daily driver, off-road enthusiast, or professional operator, the PPE Diesel DEF Fill Cap offers peace of mind by preventing dust, dirt, moisture, and other contaminants from entering the DEF tank during refueling.

Key Features:

Engineered with precision and durability in mind, the PPE Diesel DEF Fill Cap delivers several key benefits that enhance your vehicle’s DEF system protection:

• Precision CNC-machined from billet aluminum for superior strength and corrosion resistance
• High-quality Viton O-ring seal ensures an airtight, leak-proof fit to keep contaminants out
• Integrated neodymium magnet on the bottom for convenient attachment to body panels during refueling
• Direct fitment for Dodge Ram (2007–2025), Jeep Wrangler (2020–2023), Jeep Gladiator (2021–2023), and Jeep Grand (2014–2022)
• Durable finish resists wear and environmental damage for long-lasting use
• Simple, tool-free installation and removal for hassle-free maintenance
• Designed to meet or exceed OEM specifications for fit and function

Construction & Design:

The PPE Diesel DEF Fill Cap is crafted from premium billet aluminum, chosen for its exceptional strength-to-weight ratio and resistance to corrosion. The CNC machining process ensures precise dimensions and a perfect fit, eliminating the risk of leaks or loose sealing. The Viton O-ring seal is engineered to withstand exposure to DEF fluid and harsh environmental conditions, maintaining a reliable airtight barrier. Additionally, the integrated neodymium magnet provides a practical solution for holding the cap securely on the vehicle’s body during refueling, preventing loss or damage.

Installation & Fitment:

Installation of the PPE Diesel DEF Fill Cap is straightforward and requires no special tools or modifications. Simply remove the factory DEF fill cap and replace it with this PPE billet aluminum cap. Its direct-fit design guarantees compatibility with the DEF filler necks of Dodge Ram models from 2007 to 2025, Jeep Wrangler models from 2020 to 2023, Jeep Gladiator models from 2021 to 2023, and Jeep Grand models from 2014 to 2022. The secure Viton O-ring seal ensures a tight fit that prevents leaks and contamination.

What's Included:

• One PPE billet aluminum Diesel DEF Fill Cap with Viton O-ring seal
• Integrated neodymium magnet for convenient cap storage during refueling
• Installation instructions

Ideal For:

This Diesel DEF Fill Cap is ideal for diesel truck and SUV owners who want to maintain the cleanliness and efficiency of their DEF system. It is especially suited for those who frequently refuel in dusty or harsh environments, off-road enthusiasts, fleet operators, and anyone seeking a durable, long-lasting upgrade over the factory DEF fill cap. By protecting your DEF system from contaminants, this cap helps ensure your vehicle’s emissions control system operates at peak performance.

Pacific Performance Engineering (PPE) develops heavy-duty and performance upgrades for trucks and diesel platforms, including differential covers, transmission pans, oiling and cooling components, and other durability-minded parts. PPE products are built to handle heat, load, and power—ideal for tow rigs and performance builds that need stronger hardware and better fluid control.