Dorman 502-557 Diesel High Pressure Oil Pump

Reliable Diesel High Pressure Oil Pump for Ford Trucks

The Dorman 502-557 Diesel High Pressure Oil Pump is engineered to meet the demands of Ford diesel engines, including the E-350 Econoline, E-350 Econoline Club Wagon, F-250, F-250 HD, and F-350 models. Constructed from durable aluminum with a black finish, this pump ensures consistent performance and longevity in your fuel injection system.

• Durable aluminum housing and pump material for strength and corrosion resistance
• Includes one pump and one gasket for proper sealing
• Designed with 2 mounting holes (9mm diameter) for secure installation
• Equipped with 3 ports to support efficient fuel delivery
• Compatible with Ford E-350 Econoline, E-350 Econoline Club Wagon, F-250, F-250 HD, and F-350 diesel models

Product Details and Specifications

The Dorman 502-557 Diesel High Pressure Oil Pump features an aluminum housing and pump body, providing a lightweight yet robust component for your vehicle’s fuel injection system. The black finish adds an extra layer of protection against environmental factors. This pump includes a gasket to ensure a tight seal during installation, preventing leaks and maintaining system integrity. With two mounting holes sized at 9mm in diameter, it offers a secure fitment on compatible Ford diesel trucks. The pump is designed with three ports to facilitate proper oil flow and pressure regulation within the fuel injection system.

Compatible Ford Diesel Models and Applications

This diesel high pressure oil pump is specifically compatible with the following Ford models:

• Ford E-350 Econoline
• Ford E-350 Econoline Club Wagon
• Ford F-250
• Ford F-250 HD
• Ford F-350

It is ideal for addressing issues related to fuel injection performance and oil pressure regulation in these vehicles.

Common Issues Addressed by This Pump

• Inconsistent fuel injection pressure causing engine performance problems
• Oil leaks due to worn or damaged seals in the fuel injection system
• Reduced engine power or hesitation under load
• Excessive engine noise related to faulty oil pump operation
• Failure of the original high pressure oil pump affecting fuel delivery

Installation Notes and Tips

When installing the Dorman 502-557 Diesel High Pressure Oil Pump, ensure the gasket is properly seated to prevent leaks. Use the two 9mm mounting holes to secure the pump firmly to the engine. Since mounting hardware is not included, retain or source the appropriate bolts for your specific Ford model. It is recommended to inspect related fuel injection components during installation to ensure overall system reliability.

Quality Assurance and Warranty

Dorman manufactures this diesel high pressure oil pump to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides durability and resistance to corrosion. This part includes a gasket to support proper sealing. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.