Dorman 904-5501CD Diesel Exhaust Fluid (DEF) Filler Cap

Overview of Dorman Diesel Exhaust Fluid Filler Cap

The Dorman 904-5501CD Diesel Exhaust Fluid (DEF) Filler Cap is designed to provide a secure seal for your vehicle's DEF tank. This cap includes a retention ring to ensure proper fit and prevent leaks, making it a reliable replacement part for maintaining your emission control system.

• Includes retention ring for secure attachment
• Compatible with various diesel vehicle DEF tanks
• Durable construction for long-lasting performance
• Part number 904-5501CD for easy identification

Product Details and Features

The Dorman 904-5501CD DEF filler cap is engineered to meet the specifications required for diesel exhaust fluid systems. The included retention ring helps maintain a tight seal, preventing contamination and fluid loss. This part is essential for vehicles equipped with DEF systems, such as Ford Super Duty trucks and Chevrolet Silverado diesel models, which rely on proper DEF tank sealing to comply with emission standards.

Applications and Common Issues Addressed

• Prevents DEF fluid evaporation and contamination
• Helps maintain proper DEF system pressure
• Reduces risk of emission system faults related to DEF leaks
• Replaces worn or damaged DEF filler caps
• Supports compliance with emission control regulations

Installation Notes and Tips

When installing the Dorman 904-5501CD DEF filler cap, ensure the retention ring is properly seated to maintain a secure fit. Clean the filler neck area before installation to avoid debris interference. This part is designed for straightforward replacement without special tools, compatible with diesel vehicles requiring a DEF filler cap replacement.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for emission control components. While specific warranty details for part number 904-5501CD may vary, Dorman typically offers limited warranties covering defects in material and workmanship to ensure customer confidence.