55491592 Genuine GM NOx Sensor Upper For Colorado Canyon 2.8L Diesel

Name: 55491592 Genuine GM NOx Sensor Upper For Colorado Canyon 2.8L Diesel
Brand: GM
SKU: 55491592
Price: 314.00 USD
Availability: InStock

P/N: 55491592 Manufactured by: GM

$314.00 - $314.00

$314.00

$314.00 - $314.00

$314.00

3 in Stock

Condition: New

We accept:

Need help choosing the right part?Contact our support team

+1 828-705-1030

Monday – Saturday | 8:00 AM – 8:00 PM (EST)

2-3 Day Free Shipping

Return within 30-Days

Packed Ready to Ship

24/7 Expert Support

2-Year Warranty

Unit Auto Parts LLC provides a complimentary 2-Year Warranty on all automotive parts. Shop with confidence knowing your purchase is protected. Learn More

Description

The 55491592 is a genuine GM upper nitrogen oxides (NOx) sensor built for select 2016–2019 Chevrolet Colorado and GMC Canyon models equipped with the 2.8L Duramax diesel engine. It measures nitrogen oxide content in the exhaust and sends accurate data to the engine control system, helping maintain proper SCR operation and emissions performance.

Vehicle Compatibility

Year	Vehicle	Engine	Trims
2019	Chevrolet Colorado	2.8L L4 Diesel	LT, WT, Z71, ZR2
2019	GMC Canyon	2.8L L4 Diesel	All Terrain, Denali, SLE, SLT
2018	Chevrolet Colorado	2.8L L4 Diesel	LT, WT, Z71, ZR2
2018	GMC Canyon	2.8L L4 Diesel	All Terrain, Denali, SLE, SLT
2017	Chevrolet Colorado	2.8L L4 Diesel	LT, WT, Z71, ZR2
2017	GMC Canyon	2.8L L4 Diesel	Denali, SLE, SLT
2016	Chevrolet Colorado	2.8L L4 Diesel	LT, WT, Z71
2016	GMC Canyon	2.8L L4 Diesel	SLE, SLT

General Specifications

Condition	New
Part Number	55491592
Brand	GM
Part Type	Nitrogen Oxides Sensor (NOx Sensor)
Years	2016–2019
Vehicle	Chevrolet Colorado, GMC Canyon
Position	Upper
Engine Compatibility	2.8L L4 Diesel
Weight	1.33 lbs
Fitment Type	Direct Replacement

Product Features

The 55491592 upper nitrogen oxides (NOx) sensor is built to match factory performance and installation requirements:

Designed to monitor nitrogen oxide levels in the exhaust stream for accurate emissions feedback
Built for the factory upper sensor position on compatible 2.8L Duramax diesel applications
Uses the original-style electrical connector and mounting configuration for proper installation
Provides consistent data to help the engine management system regulate SCR operation
Manufactured to GM engineering specifications for dependable operation in diesel exhaust systems

Application Notes

The 55491592 is intended for vehicles equipped with the factory upper NOx sensor location listed for the applications above. Before installation, inspect the exhaust mounting point and electrical connector for damage or contamination.

Always verify the part number, VIN, engine configuration, and upper sensor position before installation.