Dorman 502-559 Diesel High Pressure Oil Pump

Reliable Diesel High Pressure Oil Pump for Ford Super Duty Vehicles

The Dorman 502-559 Diesel High Pressure Oil Pump is engineered to meet the demands of Ford diesel engines, including the E-350 Club Wagon, F-250 Super Duty, and F-350 Super Duty models. Designed with durable aluminum housing and a black finish, this pump ensures consistent performance in fuel injection systems.

• Constructed from lightweight, corrosion-resistant aluminum material
• Includes one pump and one gasket for proper sealing
• Features two mounting holes with a 9mm diameter for secure installation
• Equipped with three ports to support efficient oil flow
• Compatible with multiple Ford diesel models including E-350 and Excursion

Durable Construction and Design Details

This diesel high pressure oil pump by Dorman is built with an aluminum housing that offers strength and heat resistance, essential for maintaining optimal fuel injection system performance. The black color finish provides additional protection against environmental factors. The included gasket ensures a tight seal to prevent leaks, while the two mounting holes allow for precise and stable attachment to the engine assembly. With three ports designed for effective oil delivery, this pump supports the high-pressure requirements of diesel engines in Ford Super Duty trucks and vans.

Compatible Ford Models and Applications

This pump is specifically compatible with a range of Ford diesel vehicles, including:

• Ford E-350 Club Wagon and Econoline Club Wagon
• Ford E-350 Super Duty
• Ford Excursion
• Ford F-250 Super Duty
• Ford F-350 Super Duty

It is designed to replace the original high pressure oil pump in these models, helping to restore proper fuel injection system function and engine performance.

Common Issues Addressed by This Pump

• Inconsistent fuel pressure causing engine performance problems
• Oil leaks due to worn or damaged seals
• Reduced engine power or hesitation during acceleration
• Fuel injection system failures related to oil pump malfunction
• Excessive engine noise linked to faulty oil pump operation

Installation Notes and Tips

When installing the Dorman 502-559 Diesel High Pressure Oil Pump, ensure the gasket is properly seated to prevent leaks. The two mounting holes with 9mm diameter should be aligned carefully for secure attachment. Since mounting hardware is not included, use the original fasteners or appropriate replacements. It is recommended to inspect related fuel injection components during installation to ensure overall system integrity.

Quality Assurance and Warranty

Dorman manufactures this diesel high pressure oil pump to meet or exceed OEM specifications, providing reliable performance for Ford diesel engines. The product includes a gasket to ensure proper sealing. Please refer to Dorman's warranty policy for coverage details, as warranty terms may vary by region and application.