Dorman 904-422 Nitrogen Oxide NOx Sensor for Select Chevrolet/GMC Models

The Dorman 904-422 is a direct-replacement nitrogen oxide (NOx) sensor designed to restore proper emissions monitoring functionality in select Chevrolet and GMC vehicles. This sensor is a critical component of the vehicle's emissions control system, measuring NOx levels in the exhaust stream and sending data to the engine control module to ensure optimal combustion and compliance with emissions standards.

Key Features:

• Direct-fit replacement for original equipment on select Chevrolet and GMC models
• Monitors nitrogen oxide levels in exhaust gases for emissions compliance
• Engineered to meet or exceed OE specifications for reliable performance
• Helps prevent check engine light illumination related to NOx sensor faults
• Rigorous quality testing ensures durability and accuracy

When a NOx sensor fails, it can trigger fault codes and illuminate the check engine light, potentially affecting vehicle performance and emissions test results. The Dorman 904-422 provides a reliable, cost-effective solution for restoring your vehicle's emissions monitoring system to proper working order.