Emission Systems
Heated Oxygen Sensor
GM
12634064
This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
$90.13
MSRP $160.94
Save $70.81
44% 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
$1.29
MSRP $1.96
Save $0.67
34.2% Off 
2004-2012 GM Purge Valve Pipe
GM
12577221
3.7L. 3.5L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$19.40
MSRP $33.74
Save $14.34
42.5% 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
$13.16
MSRP $22.88
Save $9.72
42.5% 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...
$64.65
MSRP $115.44
Save $50.79
44% 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...
$120.41
MSRP $215.02
Save $94.61
44% 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
$12.13
MSRP $21.10
Save $8.97
42.5% 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 
2002-2003 GM 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,...
$69.52
MSRP $124.16
Save $54.64
44% Off 
2014 2015 Chevrolet Cruze - Oxygen Sensor
GM
12644786
Cruze, Cruze Limited. 2.0l. Upstream. With diesel, egr valve & related components. This part requires programming and/or special setup...
$129.57
MSRP $231.38
Save $101.81
44% Off 
1994-1999 GM 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.
$4.37
MSRP $7.61
Save $3.24
42.6% 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...
$122.11
MSRP $218.06
Save $95.95
44% 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,...
$64.00
MSRP $114.28
Save $50.28
44% 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 
2007-2013 GM Purge Valve Pipe
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
$24.14
MSRP $41.98
Save $17.84
42.5% 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
$16.70
MSRP $29.04
Save $12.34
42.5% 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
$22.95
MSRP $39.92
Save $16.97
42.5% Off 
2016-2019 Cadillac CT6 - 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...
$138.03
MSRP $246.46
Save $108.43
44% Off 
2014-2019 Chevrolet Corvette - 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 
2016-2019 Chevrolet Cruze - Air 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
44% Off 
1-Way Female Gray Multi-Purpose Pigtail
GM
15306070
3.5L. Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
$19.94
MSRP $34.69
Save $14.75
42.5% Off 
Exhaust Temperature Sensor
GM
12623113
Helps provide accurate temperature detection
Heat and vibration resistant for operating efficiently
$187.24
MSRP $334.34
Save $147.10
44% Off 
2008-2016 GM Oxygen Sensor
GM
12612571
Express, savana. Gas. Rear. This part requires programming and/or special setup procedures GM Service Information describes the...
$98.50
MSRP $175.90
Save $77.40
44% Off 
Vapor Canister without Vent Valve Solenoid
GM
15250111
Sky. Solstice. Helps reduce harmful pollutants from entering the atmosphere
Captures fuel vapors to be re-burned in the engine
$182.29
MSRP $325.50
Save $143.21
44% Off 
Positive Crankcase Ventilation (PCV) Hose Fitting Seal
GM
12644073
1.5L turbo. Coupe, 2.0L turbo. 2016-18. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$5.84
MSRP $10.16
Save $4.32
42.5% Off 
Vapor Canister Purge Tube
GM
12607115
6.0 6.2L without supercharged 7.0L. #2. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$12.83
MSRP $22.32
Save $9.49
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!