HomeEmission Control > SensorsStandard Ignition AS371 Barometric Pressure Sensor
Part #: AS371

Standard Ignition AS371 Barometric Pressure Sensor

⚙️ 12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500
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Overview of Standard Ignition Barometric Pressure Sensor AS371

The Standard Ignition AS371 Barometric Pressure Sensor is designed for precise atmospheric pressure measurement in emission control systems. This sensor is compatible with Chevrolet and GMC heavy-duty trucks, including the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Type: Plug in
  • Terminal Gender: Male
  • Terminal Quantity: 3
  • Terminal Type: Blade

Technical Details and Attributes

The AS371 sensor features a single female plug-in connector designed for secure and reliable electrical connection. It includes three male blade terminals, which ensure consistent signal transmission and durability under heavy-duty operating conditions. The plug-in connector type simplifies installation and replacement, reducing downtime for Chevrolet Sierra 2500 HD and GMC Sierra 3500 owners. The blade terminal design supports stable contact and resistance to vibration, critical for emission control sensor performance.

Compatible Vehicles and Applications

This barometric pressure sensor is specifically engineered for use in emission control systems of Chevrolet and GMC trucks. It is compatible with the Chevrolet Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models. The part number AS371 ensures proper fitment and function within these vehicles' engine management systems.

  • Helps maintain accurate atmospheric pressure readings
  • Supports proper engine air-fuel mixture adjustments
  • Assists in reducing emissions and improving fuel efficiency
  • Prevents engine performance issues related to faulty pressure sensing
  • Addresses check engine light triggers related to barometric pressure sensor faults

Installation Notes and Tips

When installing the Standard Ignition AS371 sensor, ensure the female plug-in connector is securely attached to the vehicle’s wiring harness. Verify that the three male blade terminals are free of corrosion and properly seated to maintain electrical continuity. It is recommended to disconnect the battery before installation to avoid electrical shorts. Proper installation will help maintain emission system accuracy and vehicle performance.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance in emission control applications. The AS371 sensor undergoes rigorous testing for durability and accuracy. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberAS371
Connector GenderFemale
Connector TypePlug In
Terminal GenderMale
Terminal TypeBlade

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005ChevroletSilverado 2500 HD6.6LV8N/A
2005ChevroletSilverado 35006.6LV8N/A
2005GMCSierra 2500 HD6.6LV8N/A
2005GMCSierra 35006.6LV8N/A
2004ChevroletSilverado 2500 HD6.6LV8N/A
2004ChevroletSilverado 35006.6LV8N/A
2004GMCSierra 2500 HD6.6LV8N/A
2004GMCSierra 35006.6LV8N/A
2001ChevroletSilverado 2500 HD6.6LV8N/A
2001ChevroletSilverado 35006.6LV8N/A
2001GMCSierra 2500 HD6.6LV8N/A
2001GMCSierra 35006.6LV8N/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:

192075592-270925S1326372-189776151BPSA3EC1855ECE1293HTS115V40-72-0381

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