Dorman 904-575 Fuel Injection Pressure Regulator

Reliable Fuel Injection Pressure Regulator for Chevrolet and GMC

The Dorman 904-575 fuel injection pressure regulator is designed to maintain consistent fuel pressure in common rail fuel systems. Engineered for select Chevrolet and GMC trucks and vans, this metal regulator ensures stable fuel delivery under stock pressure conditions.

Key Features of the Dorman 904-575 Fuel Pressure Regulator

• Constructed from durable metal for long-lasting performance
• Maximum pressure reading of 50 psi for accurate monitoring
• Non-flanged inlet and outlet ports with female thread inlet and bolt-on outlet attachment
• Includes one inlet port (0.12 inch diameter) and four outlet ports (0.093 inch diameter)
• Equipped with a gauge port for pressure measurement
• Compatible with common rail fuel injection systems
• Standard replacement grade part designed for stock pressure range
• Package contains one fuel pressure regulator (installation hardware not included)

Detailed Description of the Dorman 904-575 Fuel Injection Pressure Regulator

This fuel injection pressure regulator from Dorman is specifically engineered for use in Chevrolet Express 2500 and 3500, GMC Savana 2500 and 3500, as well as Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD models, including Classic variants. The regulator controls fuel pressure within the common rail system, ensuring optimal engine performance and fuel efficiency. Its metal construction provides durability under demanding operating conditions, while the inclusion of a gauge port allows for easy pressure monitoring during diagnostics or maintenance. The non-flanged inlet and outlet ports with female threads and bolt-on attachments facilitate secure installation and reliable sealing.

Common Applications and Issues Addressed

• Maintains consistent fuel pressure in common rail fuel injection systems
• Prevents fuel pressure fluctuations that can cause engine hesitation or stalling
• Helps resolve rough idling or poor acceleration related to fuel delivery
• Supports proper fuel atomization for improved combustion efficiency
• Addresses fuel system leaks or pressure loss due to worn or faulty regulators

Installation Notes and Tips

• Compatible with Chevrolet Express, GMC Savana, Silverado, and Sierra 2500/3500 HD models; verify exact model and year before installation
• Installation hardware is not included; use appropriate tools and replacement seals as needed
• Ensure fuel system is depressurized before removal to avoid fuel spray
• Inspect fuel lines and connections for wear or damage during installation
• Use the gauge port to verify correct fuel pressure after installation

Quality Assurance and Warranty Information

The Dorman 904-575 fuel injection pressure regulator is manufactured to meet standard replacement part specifications, ensuring reliable performance in compatible Chevrolet and GMC vehicles. While installation hardware is not included, the part is designed for straightforward replacement. Dorman provides a limited warranty covering defects in material and workmanship, supporting confidence in the product's durability and function.