Dorman 904-575 Fuel Injection Pressure Regulator

Fuel Pressure Control for Common Rail Systems

This Dorman fuel injection pressure regulator is a standard replacement for specified Chevrolet and GMC diesel applications. Built with a metal body and OE-style fit and function, it helps maintain consistent fuel pressure in common rail systems on vehicles such as the Silverado 2500 HD, Sierra 3500 HD, Express 3500, and Savana 2500.

Key Features

• Direct replacement fuel injection pressure regulator for specified vehicles
• Metal construction for durability and long service life
• Common rail fuel system style
• Gauge port included for pressure testing
• Stock pressure range with a maximum pressure reading of 50
• Female-thread inlet attachment with bolt-on outlet attachment
• OE-style fit and function for service replacement use

Detailed Description

Dorman 904-575 is engineered to match the original equipment regulator on selected Chevrolet and GMC trucks and vans. It is built for common rail fuel injection systems and uses a non-flanged inlet and outlet design with one inlet, four outlets, and a single port layout. The metal housing supports dependable operation in demanding diesel fuel delivery applications, while the stock pressure range helps preserve factory fuel system behavior. This part cross-references Standard Ignition PR444 for the same application.

What It Helps Address

• Unstable fuel rail pressure
• Hard starting related to fuel pressure control
• Fuel delivery irregularities in common rail systems
• Diagnostic trouble codes tied to pressure regulation
• Loss of factory-style fuel system performance

Installation Notes and Tips

• Fits 2006-2010 Chevrolet Express 2500
• Fits 2006-2010 Chevrolet Express 3500
• Fits 2006-2010 Chevrolet Silverado 2500 HD
• Fits 2007-2010 Chevrolet Silverado 3500 HD
• Fits 2006-2010 GMC Savana 2500
• Fits 2006-2010 GMC Savana 3500
• Fits 2006-2010 GMC Sierra 2500 HD
• Fits 2007-2010 GMC Sierra 3500 HD
• Fits 2007 Chevrolet Silverado 2500 HD Classic
• Fits 2007 Chevrolet Silverado 3500 Classic
• Fits 2007 GMC Sierra 2500 HD Classic
• Fits 2007 GMC Sierra 3500 Classic
• Fits 2006 Chevrolet Silverado 3500
• Fits 2006 GMC Sierra 3500

Verify the inlet and outlet attachment style, port count, and fuel system configuration before installation. Because this regulator is a direct replacement for specified applications, matching the OE part number and vehicle build details is important for proper fitment. Dorman 904-575 is a practical choice when servicing Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD fuel pressure control components.

Quality Assurance

This regulator is made from quality materials and built to deliver durable, long-term service in the specified applications. Dorman positions this part as a standard replacement component engineered to match OE fit and function.