This ACDelco GM Original Equipment 12671387 Nitrogen Oxide (NOx) Sensor is a critical component for maintaining optimal emission levels in your diesel engine. Designed specifically for GM vehicles, this sensor detects the nitrogen oxide content in your vehicle's exhaust gases, allowing the engine control module (ECM) to make real-time adjustments to reduce harmful emissions and ensure compliance with environmental standards.Manufactured to meet GM OE specifications, this sensor guarantees a perfect fit, form, and function, offering unparalleled quality and durability. Whether you're driving a Chevrolet Express or a GMC Sierra, replacing a faulty sensor with this ACDelco component will help ensure your vehicle operates efficiently. Moreover, proper installation requires specific programming, which is outlined in GM Service Information. Consider pairing with a wiring harness for a seamless installation.

• Precisely detects NOx levels to optimize emissions
• GM-recommended for original equipment replacement
• Ensures compliance with emission standards
• High durability and reliability with GM OE quality
• Special setup and programming required
• Fits select Chevrolet and GMC models

Connector Color:	Black
Connector Gender:	Female
Height (in):	3.5
Length (in):	6
Programming Required:	Yes
Terminal Gender:	Male
Terminal Quantity:	6
Universal Or Specific Fit:	Specific
Weight (lb):	0.65
Wiring Harness Length:	915

• 2010-2014 Chevrolet Express 2500 | Position: Upstream
• 2010-2014 Chevrolet Express 3500 | Position: Upstream
• 2010-2014 GMC Savana 2500 | Position: Upstream
• 2010-2014 GMC Savana 3500 | Position: Upstream
• 2011-2014 Chevrolet Silverado 2500 HD | Position: Upstream
• 2011-2014 Chevrolet Silverado 3500 HD | Position: Upstream
• 2011-2014 GMC Sierra 2500 HD | Position: Upstream
• 2011-2014 GMC Sierra 3500 HD | Position: Upstream