Walker 570-5002 Exhaust Gas Recirculation (EGR) Valve

Walker Products 570-5002 EGR Valve

Walker Products 570-5002 is an Exhaust Gas Recirculation (EGR) valve for select Saturn, Chevrolet, and GMC applications. It is built to meet or exceed OEM standards and specifications, making it a direct replacement choice for restoring emissions system function on vehicles such as the Saturn SC1, Saturn SL2, and Chevrolet Astro.

Key Features

• Exhaust Gas Recirculation (EGR) valve for emission control service
• Walker Products engine management component backed by ISO 9001/IATF 16949 certification
• Manufactured to meet or exceed OEM standards and specifications
• Application coverage for 1995-1999 Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2
• Also fits 1995 Chevrolet Astro, Blazer, and S10, plus 1995 GMC Jimmy, Safari, and Sonoma
• Part number 570-5002 for catalog and service identification

Detailed Description

Walker Products has supplied fuel system and engine management components since 1946, with engineering and product support focused on accurate vehicle applications and OE-style fitment. The 570-5002 EGR valve is part of Walker Products’ emissions-related lineup and is intended for vehicles that require precise exhaust gas recirculation control to maintain proper engine operation and emissions performance. This part number 570-5002 is a practical replacement for Saturn SC1 and Saturn SL2 models, as well as select Chevrolet and GMC trucks and vans from 1995.

This part cross-references Delphi EG10031 for the same application.

What It Is Used For

• Restoring EGR flow control when the original valve is sticking or not responding correctly
• Addressing rough idle or drivability concerns related to EGR system faults
• Correcting emissions-related trouble codes tied to EGR valve performance
• Replacing a worn or carbon-contaminated EGR valve on Saturn, Chevrolet, or GMC applications
• Supporting proper exhaust gas recirculation on listed 1995-1999 and 1995 vehicles

Installation Notes and Tips

Verify the vehicle year, make, model, and engine/emissions configuration against the listed fitment before installation. Inspect the EGR passages, gasket surfaces, and related vacuum or electrical connections for carbon buildup, leaks, or damage before installing the new valve. Clear diagnostic codes and confirm system operation after installation.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The company is ISO 9001/IATF 16949 certified and supports production with in-house manufacturing, engineering, product management, and technical documentation.