HomeEmission Control > Air Injection SystemStandard Ignition DV131 Secondary Air Injection Pump Check Valve
Part #: DV131

Standard Ignition DV131 Secondary Air Injection Pump Check Valve

22 vehicles fit this part
Select your vehicle to confirm fitment
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Fitment: Buick, Chevrolet, GMC, Saab, and Oldsmobile, Rainier, Trailblazer, Trailblazer EXT, Envoy, Envoy XL, Envoy XUV, 9-7x, and Bravada
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Overview of Standard Ignition Secondary Air Injection Pump Check Valve

The Standard Ignition DV131 Secondary Air Injection Pump Check Valve is designed to maintain proper air flow within the emission control system. This valve is compatible with select Buick, Chevrolet, GMC, Oldsmobile, and Saab models, ensuring reliable performance in your vehicle's air injection system.

  • Compatible with Buick, Chevrolet, GMC, Oldsmobile, and Saab vehicles
  • Fits models including 9-7x, Bravada, Envoy, Envoy XL, Envoy XUV, Rainier, Trailblazer, and Trailblazer EXT
  • Hose size: 1 1/4 inches for precise fitment
  • Part number DV131 for accurate identification
  • Includes valve component for secondary air injection pump

Product Details and Specifications

The DV131 check valve from Standard Ignition is engineered to fit the secondary air injection pump hose with a 1 1/4 inch diameter. This valve plays a critical role in preventing exhaust gases from flowing back into the air injection system, which helps reduce emissions and supports engine efficiency. The valve is constructed to meet OEM standards, providing a dependable replacement for emission control systems on compatible vehicles.

Compatible Vehicles and Applications

This secondary air injection pump check valve is compatible with a range of vehicles, including Buick, Chevrolet, GMC, Oldsmobile, and Saab models. Specifically, it fits the Buick Rainier, Chevrolet Trailblazer and Trailblazer EXT, GMC Envoy, Envoy XL, Envoy XUV, Bravada, Oldsmobile, and Saab 9-7x. Using the correct part number DV131 ensures proper fit and function within these models' emission control systems.

Common Issues Addressed by the DV131 Check Valve

  • Prevents backflow of exhaust gases into the secondary air injection system
  • Helps reduce emissions and supports compliance with environmental regulations
  • Eliminates air injection pump failure caused by valve malfunction
  • Prevents check valve leaks that can trigger engine warning lights
  • Maintains proper air flow for optimal engine performance

Installation Notes and Tips

When installing the Standard Ignition DV131 check valve, ensure the hose size matches the specified 1 1/4 inch diameter for a secure fit. Inspect the secondary air injection pump and surrounding hoses for wear or damage before installation. Proper orientation of the valve is critical to prevent backflow and maintain system integrity. It is recommended to follow vehicle-specific service manuals for detailed installation procedures.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The DV131 check valve undergoes rigorous quality control testing to maintain consistent standards. Warranty coverage details should be confirmed with the product documentation or manufacturer, providing assurance of part reliability for your Buick, Chevrolet, GMC, Oldsmobile, or Saab vehicle.

BrandStandard Ignition
Part NumberDV131
ContentsValve
Hose Size - Inches1 1/4
Hose Size - mmRefer to Inches

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005BuickRainier4.2LL6N/A
2005ChevroletTrailblazer4.2LL6N/A
2005ChevroletTrailblazer EXT4.2LL6N/A
2005GMCEnvoy4.2LL6N/A
2005GMCEnvoy XL4.2LL6N/A
2005GMCEnvoy XUV4.2LL6N/A
2005Saab9-7x4.2LL6N/A
2004BuickRainier4.2LL6N/A
2004ChevroletTrailblazer4.2LL6N/A
2004ChevroletTrailblazer EXT4.2LL6N/A
2004GMCEnvoy4.2LL6N/A
2004GMCEnvoy XL4.2LL6N/A
2004GMCEnvoy XUV4.2LL6N/A
2004OldsmobileBravada4.2LL6N/A
2003ChevroletTrailblazer EXT4.2LL6N/A
2003GMCEnvoy4.2LL6N/A
2003GMCEnvoy XL4.2LL6N/A
2003OldsmobileBravada4.2LL6N/A
2002ChevroletTrailblazer EXT4.2LL6N/A
2002GMCEnvoy4.2LL6N/A
2002GMCEnvoy XL4.2LL6N/A
2002OldsmobileBravada4.2LL6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12575655126191281A30612-30503600167073-1540911-003DVVC20001EC1335

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.