Dorman 904-5602 Diesel Exhaust Fluid (DEF) Filler Cap

Overview of the Dorman 904-5602 DEF Filler Cap

The Dorman 904-5602 Diesel Exhaust Fluid (DEF) Filler Cap is designed specifically for select diesel vehicles requiring a reliable and durable DEF system component. Constructed from blue plastic, this cap ensures a secure seal to maintain the integrity of the DEF tank and prevent contamination.

• Made from durable blue plastic material for corrosion resistance
• Specific fitment designed for select diesel vehicle models
• Includes a retention ring for secure installation
• Color-coded blue housing for easy identification
• Part number 904-5602 for precise replacement matching

Detailed Product Description

The Dorman 904-5602 DEF Filler Cap is engineered to meet the exact specifications of diesel exhaust fluid systems in compatible vehicles. Its plastic construction offers resistance to chemical exposure and environmental factors, while the blue color housing aligns with industry standards for DEF components. The included retention ring helps maintain a tight fit, reducing the risk of leaks or contamination. This cap is a specific fit part, ensuring compatibility with designated diesel models, which helps maintain proper DEF system function and emissions compliance.

Common Applications and Problem Resolution

• Prevents DEF fluid contamination from dirt and debris
• Maintains proper DEF tank pressure and sealing
• Replaces worn or damaged filler caps to avoid leaks
• Helps ensure compliance with emissions control regulations
• Addresses issues related to DEF system warning lights or fluid loss

Installation Notes and Tips

When installing the Dorman 904-5602 DEF Filler Cap, ensure the retention ring is properly seated to secure the cap firmly in place. Clean the filler neck area before installation to prevent debris from entering the DEF tank. This part is designed for specific diesel vehicle models, so verify compatibility with your vehicle’s make and model prior to installation. No additional hardware is required beyond the included retention ring.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance in emission control systems. The 904-5602 DEF Filler Cap undergoes quality checks to ensure durability and fitment accuracy. Please refer to Dorman’s warranty policy for coverage details on this part.