Emission Systems
Engine Coolant Pipe Gasket
GM
12737098
EGR Cooling Pipes. 6.6L diesel 2017-19 egr valve & related components.
$1.14
MSRP $1.90
Save $0.76
40% Off 
Oxygen Sensor
GM
12702181
Silverado, sierra. 4.3l. Upstream. Right. 4.3, 5.3, 6.2L, 4.3L.
$50.13
MSRP $87.18
Save $37.05
42.5% Off 
Sensor
GM
12747536
Silverado, Sierra 2500 HD. Front. Silverado, Sierra 3500 HD. 6.6L diesel, sensors, 2024-26.
$121.18
MSRP $214.48
Save $93.30
43.5% Off 
Exhaust Temp Sensor
GM
12737537
6.6L diesel, sensors, at muffler & pipe, posn 3. 6.6L diesel, sensors, 2024-26, exhaust particulate.
$87.71
MSRP $155.24
Save $67.53
43.5% Off 
Vapor Canister
GM
26334031
Awd. Equinox. 1.5l. Fwd. Terrain. 1.5l.
$143.31
MSRP $253.64
Save $110.33
43.5% Off 
Exhaust Gas Recirculation (EGR) Valve Cooler Gasket
GM
55490621
Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$3.13
MSRP $4.57
Save $1.44
31.5% Off 
Secondary Air Injection Pump with Bracket
GM
12634644
Equinox, Terrain. 2.4L, with pzev. LaCrosse. 2.4l. Helps maintain controlled air flow to proper air injection components
This GM Genuine...
$222.72
MSRP $397.72
Save $175.00
44% Off 
Vapor Canister Vent Valve
GM
12559015
Location-Vapor Canister. Square. All models. 4.3l. Hummer H2. Controls fresh air flow to the canister
Sends fuel vapors to the engine...
$26.27
MSRP $44.34
Save $18.07
40.8% Off 
Heated Oxygen Sensor
GM
12634064
This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
$90.93
MSRP $160.94
Save $70.01
43.5% Off 
Secondary Air Injection Pipe Flange Gasket
GM
12589488
2.8L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$1.34
MSRP $1.96
Save $0.62
31.6% Off 
Vapor Canister Purge Tube
GM
12577221
3.7L. 3.5L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$19.99
MSRP $33.74
Save $13.75
40.8% Off 
Vapor Canister Purge Tube
GM
12629696
4.3, 5.3, 6.2L, 4.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$13.56
MSRP $22.88
Save $9.32
40.7% Off 
Black Heated Oxygen Sensor
GM
12568234
This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
$65.80
MSRP $115.44
Save $49.64
43% Off 
Heated Oxygen Sensor
GM
12599204
Express, savana. Gas. Front. Calif. This part requires programming and/or special setup procedures GM Service Information describes the...
$121.49
MSRP $215.02
Save $93.53
43.5% Off 
Positive Crankcase Ventilation Tube
GM
12687311
6.2L without supercharger. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$12.50
MSRP $21.10
Save $8.60
40.8% Off 
Heated Oxygen Sensor
GM
12687606
Silverado, sierra. 5.3l. Upper. Right. 4.3, 5.3, 6.2L, 5.3, 6.2L. Silverado, sierra. 6.2l. This part requires programming and/or special...
$49.15
MSRP $85.48
Save $36.33
42.5% Off 
Secondary Air Injection Check Valve Kit with Valve, Retainer, Gasket, and Bolts
GM
12632977
Impala. 2.5l. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and tested to rigorous...
$185.75
MSRP $331.70
Save $145.95
44% Off 
Heated Oxygen Sensor
GM
12577588
All models. 4.2l. Front. Detects oxygen content in the exhaust gases to help optimize emissions
This GM Genuine Part is designed,...
$70.76
MSRP $124.16
Save $53.40
43% Off 
Heated Oxygen Sensor
GM
12644786
Cruze, Cruze Limited. 2.0l. Upstream. With diesel, egr valve & related components. This part requires programming and/or special setup...
$130.73
MSRP $231.38
Save $100.65
43.5% Off 
EGR Valve
GM
12578040
S-series. 4.3l. Tbi. Astro, Safari. 4.3l. Auto trans. Vin code z. All. Aurora. Seville. G10-30 vans. 7.4l. Modulates the flow of exhaust...
$195.42
MSRP $348.96
Save $153.54
44% Off 
Exhaust Gas Re-Circulation (Egr) Valve Gasket
GM
12570863
Cover Gasket.
$4.56
MSRP $7.61
Save $3.05
40.1% Off 
Air Injection Valve
GM
12567733
Location-A.I.R. Pipes. S-series. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and tested...
$123.20
MSRP $218.06
Save $94.86
43.5% Off 
Exhaust Gas Recirculation Cooler Temperature Sensor
GM
12677346
Silverado, sierra. 6.6l. Position 2. Temp sensor. Silverado, Sierra 2500 HD. Diesel. Silverado, Sierra 3500 HD. This GM Genuine Part is...
$32.35
MSRP $56.26
Save $23.91
42.5% Off 
Heated Oxygen Sensor
GM
12645561
ATS. 2.0l. Upper. CTS. 2.0l. Canister & sensors, 2.0l turbo. ATS. 2.5l. Coupe, 2.0L turbo. Sedan, canister & sensors, 2.5L. This part...
$55.26
MSRP $96.10
Save $40.84
42.5% Off 
Heated Oxygen Sensor
GM
12668435
Silverado, sierra. 5.3l. Upper. Left. 4.3, 5.3, 6.2L, 5.3, 6.2L. Silverado, sierra. 6.2l. Silverado, sierra. 4.3l. 4.3, 5.3, 6.2L, 4.3L....
$43.71
MSRP $76.02
Save $32.31
42.5% Off 
Heated Oxygen Sensor
GM
12567127
Front. 5.3L. SSR. Detects oxygen content in the exhaust gases to help optimize emissions
This GM Genuine Part is designed, engineered,...
$65.14
MSRP $114.28
Save $49.14
43% Off 
Positive Crankcase Ventilation Foul Air Tube
GM
12701623
3.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$43.59
MSRP $66.49
Save $22.90
34.4% Off 
Secondary Air Injection Pump
GM
12568382
Corvette. Helps maintain controlled air flow to proper air injection components
This GM Genuine Part is designed, engineered, and tested...
$234.81
MSRP $419.31
Save $184.50
44% Off 
Secondary Air Injection Check Valve Kit with Valve, Retainer, Gasket, and Bolts
GM
12639990
A.i.r. Pump, 2.5L. ATS. 2.5l. Calif. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and...
$200.85
MSRP $358.66
Save $157.81
44% Off 
Vapor Canister Harness
GM
12574897
5.3L. Silverado, sierra hybrid. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$48.50
MSRP $84.34
Save $35.84
42.5% Off 
Egr Valve
GM
12713478
Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel.
$249.52
MSRP $445.58
Save $196.06
44% Off 
Positive Crankcase Ventilation Tube
GM
12670792
4.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$24.87
MSRP $41.98
Save $17.11
40.8% Off 
Secondary Air Injection Pump
GM
12568241
Impala, Monte Carlo. California only. Secondary pump, with california emission. Aztek, Rendezvous. 3.8L. 5.7L, 1998-02. California...
$261.21
MSRP $466.44
Save $205.23
44% Off 
Passenger Side Secondary Air Injection Check Valve Pipe Adapter
GM
12645865
2.4L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$253.04
MSRP $451.86
Save $198.82
44% Off 
Heated Oxygen Sensor
GM
12679885
Silverado, Sierra 2500 HD. Gas. Front. Silverado, Sierra 3500 HD. This part requires programming and/or special setup procedures. GM...
$52.51
MSRP $91.32
Save $38.81
42.5% Off 
Vapor Canister Purge Tube
GM
12605523
Coupe, 6.2L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$17.21
MSRP $29.04
Save $11.83
40.7% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12633396
3.0L & 3.6L, 3.0L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$23.65
MSRP $39.92
Save $16.27
40.8% Off 
Driver Side Positive Crankcase Ventilation (PCV) Tube
GM
12659515
3.0L twin-turbo, small. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$33.11
MSRP $50.52
Save $17.41
34.5% Off 
Position 2 Exhaust Temperature Sensor
GM
12643373
Express, savana. 6.6l diesel. Position #2. 2010-16, egr valve & related components, at converter & pipe. Helps provide accurate...
$139.26
MSRP $246.46
Save $107.20
43.5% Off 
Vapor Canister Purge Tube
GM
12630246
Without supercharger. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$34.59
MSRP $60.16
Save $25.57
42.5% Off 
Vapor Canister Purge Pipe
GM
13408650
1.4L. This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
$251.42
MSRP $448.96
Save $197.54
44% Off 
Passenger Side Secondary Air Injection Shut-Off and Check Valve
GM
12652895
Right. XTS. Impala. 3.6l. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and tested to...
$186.37
MSRP $332.80
Save $146.43
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