55495040 Genuine GM NOx Sensor Upper For Colorado Canyon 2.8L Diesel

Name: 55495040 Genuine GM NOx Sensor Upper For Colorado Canyon 2.8L Diesel
Brand: GM
SKU: 55495040
Price: 314.00 USD
Availability: InStock

P/N: 55495040 Manufactured by: GM

$314.00 - $314.00

$314.00

$314.00 - $314.00

$314.00

3 in Stock

Condition: New

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Description

The 55495040 is a genuine GM upper nitrogen oxides (NOx) sensor engineered for select 2016–2019 Chevrolet Colorado and GMC Canyon models equipped with the 2.8L Duramax diesel engine. This sensor tracks nitrogen oxide output in the exhaust system and relays precise readings to the engine control module, supporting efficient SCR operation and proper emissions management.

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	55495040
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 55495040 upper nitrogen oxides (NOx) sensor is built to match factory performance and installation requirements:

Continuously monitors exhaust NOx levels to provide accurate operating data to the engine control module
Engineered for the factory upper sensor position used on compatible 2.8L Duramax diesel applications
Designed with the original connector style for secure electrical communication with the vehicle system
Helps maintain stable SCR system operation by delivering reliable emissions feedback
Manufactured to GM engineering specifications for dependable service in demanding diesel environments

Application Notes

The 55495040 is intended for vehicles equipped with the factory upper NOx sensor configuration listed for the applications above. Inspect the sensor mounting location and electrical connector for damage or corrosion before installation.

Always verify the part number, VIN, engine specification, and sensor location before installing the component.