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ACDelco 12662659 NOx Nitrogen Oxide Sensor Position 2 Downstream

Part of: ACDelco NOx Nitrogen Oxide Sensor

Other options in this family: ACDelco 24001920 ACDelco 24001919 ACDelco 12708006

Manufacturer

Picture for manufacturer ACDelco

Part Number

12662659
14 reviews
Sale Price

$307.46

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The ACDelco 12662659 NOx (Nitrogen Oxide) Sensor is a GM Original Equipment exhaust gas sensor designed to detect nitrogen oxide content in diesel engine exhaust. This Position 2 (downstream) sensor provides critical emissions data to the engine control module (ECM), enabling precise adjustments to reduce harmful emissions and optimize engine performance.

Key Features:

  • GM Original Equipment quality for exact fit and performance
  • 6-terminal female square connector with black housing
  • 36-inch (915mm) wiring harness length for proper routing
  • Male pin terminals for secure electrical connection
  • Designed specifically for GM diesel applications
  • Supersedes part number 12641557

This sensor works in conjunction with the engine management system to monitor exhaust gas composition and help maintain optimal air-fuel ratios. Manufactured to OEM specifications, it delivers the same durability and service life expected from General Motors factory components. Note that this part may require programming or special setup procedures during installation.

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