Dorman 904-067 Diesel Exhaust Fluid (DEF) Filler Neck

Durable Diesel Exhaust Fluid Filler Neck for Ford Super Duty

The Dorman 904-067 Diesel Exhaust Fluid (DEF) Filler Neck is designed to provide a reliable and secure connection for DEF refilling on Ford F-250 Super Duty and F-350 Super Duty trucks. Constructed with a combination of rubber, metal, and plastic materials, this filler neck ensures durability and resistance to harsh operating conditions.

• Compatible with Ford F-250 Super Duty and F-350 Super Duty models
• Constructed from rubber, metal, and plastic for strength and flexibility
• Measures 43 inches in length and 14 inches in width for proper fitment
• Black color for a clean, factory-style appearance
• Bolt-on attachment method for secure installation

Product Details and Material Composition

The Dorman 904-067 DEF filler neck features a multi-material design combining caucho (rubber), metal, and plastic components. This blend provides the necessary flexibility to accommodate engine vibrations while maintaining structural integrity against corrosion and wear. The 43-inch length and 14-inch width dimensions are engineered to match the original equipment specifications for Ford F-250 and F-350 Super Duty trucks, ensuring a precise fit and proper DEF flow.

Purpose and Common Applications

• Replaces damaged or cracked DEF filler necks that cause leaks
• Prevents DEF contamination by maintaining a sealed connection
• Restores proper DEF system function to reduce emissions
• Eliminates DEF refilling difficulties caused by worn filler necks
• Supports compliance with emission control standards on diesel trucks

Installation Notes and Tips

The Dorman 904-067 DEF filler neck uses a bolt-on attachment method, allowing for straightforward installation with standard tools. Ensure the mounting bolts are securely tightened to prevent leaks. Inspect the surrounding DEF system components during installation to confirm no additional damage or wear is present. Proper installation helps maintain DEF system integrity and vehicle emission compliance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 904-067 DEF filler neck undergoes quality checks to ensure durability and performance in demanding diesel exhaust fluid applications. Please refer to Dorman's warranty policy for specific coverage details.