Emission Systems
availability
Heated Oxygen Sensor
GM
12665161
Corvette. Lower. This part requires programming and/or special setup procedures GM Service Information describes the procedures and...
$40.37
MSRP $70.20
Save $29.83
42.5% Off 
Exhaust Gas Recirculation (EGR) Valve Cooler Temperature Sensor
GM
55495829
1.6L, sensors, position 1. Cruze. 1.6l. On engine (position 1). This GM Genuine Part is designed, engineered, and tested to rigorous...
$43.03
MSRP $74.84
Save $31.81
42.5% Off 
Positive Crankcase Ventilation Foul Air Tube
GM
12703921
2017-21 3.6L. foul air. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$38.87
MSRP $67.60
Save $28.73
42.5% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
92068690
6.2L without supercharger. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$10.15
MSRP $16.92
Save $6.77
40% Off 
Vapor Canister Vent Solenoid
GM
84148819
Double & crew cab. crew cab 6.6 ft box. Controls fresh air flow to the canister
Sends fuel vapors to the engine for re-burn
Helps...
$108.74
MSRP $120.82
Save $12.08
10% Off 
Nitrogen Oxides Sensor
GM
24001919
Nox sensor. Express, savana. 2.8l diesel. Front. Detects the nitrogen oxide content of the exhaust to help optimize emissions...
$384.77
MSRP $669.14
Save $284.37
42.5% Off 
Vapor Canister Vent Solenoid
GM
84148818
Regular cab. 8 ft. box. Silverado, sierra. Crew cab. Controls fresh air flow to the canister
Sends fuel vapors to the engine for...
$118.39
MSRP $131.54
Save $13.15
10% Off 
Heated Oxygen Sensor
GM
12599866
All models. 5.3l. Express, savana. Gas. Without diesel, front. Rear of converter, 5.3l. This part requires programming and/or special...
$117.30
MSRP $130.33
Save $13.03
10% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12642631
2.5L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$24.38
MSRP $42.40
Save $18.02
42.5% Off 
Heated Oxygen Sensor
GM
12655678
Corvette. Lower. This part requires programming and/or special setup procedures GM Service Information describes the procedures and...
$49.29
MSRP $85.72
Save $36.43
42.5% Off 
Secondary Air Injection Check Valve
GM
12639108
Equinox, Terrain. Regal. Impala. 2.4l. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and...
$267.08
MSRP $464.48
Save $197.40
42.5% Off 
Positive Crankcase Ventilation Tube
GM
12680863
3.6L. Enclave. To air cleaner. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$22.42
MSRP $37.36
Save $14.94
40% Off 
Oxygen Sensor
GM
12718669
Downstream. XT4. Colorado. 2.7l. CT4. 2.7l. Acadia. 2.0l. Lower. Canyon. 2.7l. Canister & sensors, 2.0l turbo. CT6. 2.0l. Bank 1 sensor 2.
$41.15
MSRP $71.55
Save $30.40
42.5% Off 
Vapor Canister Vent Solenoid
GM
13575702
SRX. 3.6L. Controls fresh air flow to the canister
Sends fuel vapors to the engine for re-burn
Helps control fuel tank pressure
This GM...
$47.97
MSRP $83.42
Save $35.45
42.5% Off 
Multi-Purpose Relay
GM
13468934
This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
$8.72
MSRP $14.54
Save $5.82
40% Off 
Secondary Air Injection Pump
GM
55573924
Volt. ELR. With pzev. Helps maintain controlled air flow to proper air injection components
This GM Genuine Part is designed,...
$147.95
MSRP $225.72
Save $77.77
34.5% Off 
Diesel Emissions Reduction Fluid (DEF) Injector
GM
12647372
Silverado, sierra. Express, savana. 6.6l diesel. 6.6L diesel, emission reduction system, 2015-16. This GM Genuine Part is designed,...
$262.12
MSRP $455.85
Save $193.73
42.5% Off 
Exhaust Gas Recirculation (EGR) Valve Gasket
GM
12635466
2010-16, egr valve & related components, upper. Express, savana. 6.6l diesel. Lock a. 6.6L diesel, egr valve & related components,...
$8.00
MSRP $13.32
Save $5.32
39.9% Off 
Knock Sensor Grommet
GM
12558177
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$63.05
MSRP $92.25
Save $29.20
31.7% Off 
Vapor Canister Purge Tube
GM
12683612
1.5L turbo. Equinox, Terrain. 1.5l. 1.5, 2.0L, 1.5L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and...
$20.02
MSRP $33.36
Save $13.34
40% Off 
Rear Nox Sensor
GM
12718742
6.6L diesel, egr valve & related components, 2017-19.
$408.26
MSRP $710.01
Save $301.75
42.5% Off 
Egr Valve Cooler Kit
Mopar
68509351AA
Kit Includes Item#7 EGR Valve, #1 Vacuum Actuator, #35 EGR Temp Sensor. Kit Includes Item#7 EGR Valve, #1 Vacuum Actuator, #34 EGR Temp...
$741.75
MSRP $1,080.00
Save $338.25
31.3% Off 
Sensor
GM
40009742
Silverado, sierra. 3.0l diesel. Position 3-chassis rear. 3.0L diesel, 2023-26. 3.0L diesel 2025-26 sensors. Lower. Left. Yukon. 3.0l...
$154.28
MSRP $268.32
Save $114.04
42.5% Off 
Lock Nut, Mounting Right Side
Mopar
6508305AA
Front Exhaust Y-Pipe To Exhaust Manifold. Hot End to Manifold, Hardware Not Included with Pipe. M10-1.50. [m10-1.50]. Left Side. Right...
$26.64
MSRP $36.80
Save $10.16
27.6% Off 
Nitrogen Oxide Sensor
GM
40009339
3.0L diesel, sensors, 2021-24. Upper. Escalade. 3.0l diesel. Suburban. 3.0l diesel. Tahoe. 3.0l diesel. NOX Sensor. Yukon. 3.0l diesel.
$178.94
MSRP $198.82
Save $19.88
10% Off 
Fuel Tank Filler Vent Hose
GM
84564116
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$28.65
MSRP $41.52
Save $12.87
31% Off 
Vapor Canister
GM
42812241
1.8L, with pzev. Sonic. 1.8l. Without flex fuel.
$145.87
MSRP $253.68
Save $107.81
42.5% Off No results found. Here are some helpful search tips:
- Search by a part name. Example: water pump.
- Be less specific. Example: brake instead of ceramic brake.
- Remove information such as make, year or model.
- Can't find the part you are looking for? Contact us and we'll find it for you!