Dorman 904-7998 Diesel Exhaust Fluid (DEF) Pump Cover

Durable Diesel Exhaust Fluid Pump Cover for Emission Control

The Dorman 904-7998 Diesel Exhaust Fluid (DEF) Pump Cover is designed to provide reliable protection for your vehicle's DEF pump. Constructed from sturdy metal with a black finish, this cover ensures long-lasting durability and resistance to harsh operating conditions.

• Heavy-duty metal housing in black for corrosion resistance
• Dimensions: 268.2 mm length x 261 mm width for precise fit
• Three mounting holes with 10.8 mm diameter for secure bolt attachment
• Compatible with diesel vehicles requiring DEF pump protection
• Package includes one DEF pump cover (mounting hardware not included)

Product Details and Specifications

The Dorman 904-7998 DEF Pump Cover features a robust metal construction designed to shield the diesel exhaust fluid pump from environmental damage and debris. Its black housing color blends seamlessly with engine components, while the precise dimensions of 268.2 mm in length and 261 mm in width ensure a proper fit. The cover mounts securely using three bolt holes, each with a diameter of 10.8 mm, providing stable attachment without the need for additional mounting hardware included in the package.

Applications and Common Issues Addressed

• Protects DEF pump from dirt, moisture, and road debris
• Prevents premature wear and corrosion of the pump housing
• Helps maintain proper DEF system operation and emissions compliance
• Reduces risk of DEF pump damage during routine maintenance or off-road use
• Supports emission control system integrity in diesel vehicles

Installation Notes and Tips

Installation of the Dorman 904-7998 DEF Pump Cover requires bolting the cover in place using existing mounting points. Ensure that the mounting holes align correctly with the vehicle’s DEF pump assembly. Use appropriate bolts (not included) matching the 10.8 mm hole diameter for secure attachment. It is recommended to inspect the pump and surrounding components for damage or wear before installation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 904-7998 DEF Pump Cover undergoes rigorous quality control to ensure durability and reliable performance in emission control applications. Please refer to Dorman’s official warranty policy for specific coverage details.