Emission Systems
Heated Oxygen Sensor
GM
12575657
SRX. 2nd design, 4.6L. CTS. Engine control. 2.8l. 1st design. Engine control. 3.6l. 1st design. Right. STS, STS-v. 4.6l. Front. This...
$171.77
MSRP $304.03
Save $132.26
43.5% Off 
Exhaust Gas Recirculation (EGR) Valve Kit with Gasket
GM
19210681
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$101.07
MSRP $178.85
Save $77.78
43.5% Off 
PCV Tube
GM
12739532
6.6L diesel, oil lines. 6.6L diesel, upper components.
$63.14
MSRP $111.76
Save $48.62
43.5% Off 
Heated Oxygen Sensor
GM
12665161
Corvette. Lower. This part requires programming and/or special setup procedures GM Service Information describes the procedures and...
$40.33
MSRP $70.20
Save $29.87
42.5% Off 
Exhaust Nut
GM
11102751
2.5L, front section. 2.5L, rear section. 2.0L, front section. 1.3L turbo, front section, fwd. 1.2L turbo, front section. 1.6L. 2.0L,...
$3.30
MSRP $4.12
Save $0.82
19.9% Off 
Driver Side Positive Crankcase Ventilation Tube
GM
12670910
With supercharger, without zr1. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$55.36
MSRP $96.36
Save $41.00
42.5% Off 
Position 2 Nitrogen Oxide Sensor Adapter
GM
12662659
Cruze. Rear nox sensor. With diesel, egr valve & related components. This part requires programming and/or special setup procedures GM...
$389.68
MSRP $689.70
Save $300.02
43.5% Off 
Exhaust Gas Recirculation (EGR) Valve Gasket
GM
12677819
Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Diesel. Silverado, Sierra 3500 HD. Helps provide a leak-free seal
Allows exhaust...
$24.53
MSRP $39.56
Save $15.03
38% Off 
Secondary Air Injection Shut-Off and Check Valve
GM
12652896
Calif. A.i.r. Pump, 3.6L with pzev. CTS. 3.6l. Left. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed,...
$148.41
MSRP $262.68
Save $114.27
43.5% Off 
Driver Side Positive Crankcase Ventilation (PCV) Tube
GM
12659585
3.6L twin-turbo, front. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$41.72
MSRP $72.62
Save $30.90
42.6% Off 
Heated Oxygen Sensor
GM
12704309
Canister & sensors, 2.7L. CT4. 2.7l. Upstream. This part requires programming and/or special setup procedures GM Service Information...
$50.72
MSRP $77.44
Save $26.72
34.5% Off 
Secondary Air Injection Pump
GM
12574379
4.2L. Helps maintain controlled air flow to proper air injection components
This GM Genuine Part is designed, engineered, and tested to...
$289.72
MSRP $512.79
Save $223.07
43.5% Off 
Heated Oxygen Sensor
GM
12609457
This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
$59.22
MSRP $104.82
Save $45.60
43.5% Off 
Multi-Purpose Bolt
GM
15602721
Secondary pump, with california emission, 3.8L. Secondary pump, with california emission, 3.4L. This GM Genuine Part is designed,...
$0.95
MSRP $1.28
Save $0.33
25.8% Off 
Engine Coolant Air Bleed Pipe
GM
12683453
CTS. 2.0l. Bleed. 2.0L turbo, 2014-2017. Sedan, 2.0L turbo. 2016-18. Coupe, 2.0L turbo. This GM Genuine Part is designed, engineered,...
$21.46
MSRP $28.85
Save $7.39
25.6% Off 
Heated Oxygen Sensor
GM
12580466
Impala, Monte Carlo. 5.3l. Grand Prix. Front. 5.3l. At manifold, 5.3L. LaCrosse. CTS. Engine control. 6.0l. This part requires...
$73.00
MSRP $129.21
Save $56.21
43.5% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12620142
(S)TUBE
$22.18
MSRP $35.78
Save $13.60
38% Off 
Heated Oxygen Sensor
GM
12587785
All models. 5.3l. Rear, 5.3l. 5.3L, front of converter. Detects oxygen content in the exhaust gases to help optimize emissions
This GM...
$59.49
MSRP $105.30
Save $45.81
43.5% Off 
Heated Oxygen Sensor
GM
12615124
LaCrosse. Impala, Monte Carlo. 5.3l. Rear. Grand Prix. This part requires programming and/or special setup procedures GM Service...
$110.64
MSRP $195.82
Save $85.18
43.5% Off 
Heated Oxygen Sensor
GM
12609456
Rear. 4.3L. Hummer H2. This part requires programming and/or special setup procedures GM Service Information describes the procedures...
$59.72
MSRP $105.70
Save $45.98
43.5% Off 
M6x2.22x24 Multi-Purpose Bolt
GM
11562253
6 x 2.22 x 24mm. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$5.97
MSRP $8.13
Save $2.16
26.6% Off 
Fuel Tank Vent Pipe
GM
12777878
Location-Vapor Canister. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$80.96
MSRP $119.43
Save $38.47
32.2% Off 
Heated Oxygen Sensor
GM
12611165
Corvette. Rear. 7.0L. With supercharged. This part requires programming and/or special setup procedures GM Service Information describes...
$110.42
MSRP $195.44
Save $85.02
43.5% Off 
Heated Oxygen Sensor
GM
12597989
DTS. Lucerne. 4.6L. This part requires programming and/or special setup procedures GM Service Information describes the procedures and...
$90.95
MSRP $160.98
Save $70.03
43.5% Off 
Vapor Canister Vent Solenoid
GM
13576005
Acadia, Enclave, Traverse. Corvette. 3.5 & 3.9L with flex fuel. Controls fresh air flow to the canister
Sends fuel vapors to the engine...
$28.00
MSRP $48.74
Save $20.74
42.6% Off 
Nitrogen Oxide Sensor Kit with Sensor and Clips
GM
12671388
Nitrogen oxide. Sierra, silverado. Rear. 6.6L diesel, egr valve & related components. 2010-16, egr valve & related components. Nox...
$314.78
MSRP $557.13
Save $242.35
43.5% Off 
Passenger Side Positive Crankcase Ventilation Tube
GM
12680698
With supercharger, with zr1. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$54.24
MSRP $82.83
Save $28.59
34.5% Off 
PCV Valve Tubing
GM
12640659
1.5L turbo. 1.4L, 2 ends. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$29.04
MSRP $50.54
Save $21.50
42.5% Off 
Vacuum Hose
GM
12656521
3.6L twin-turbo, wastegate system, #4.
$70.94
MSRP $110.13
Save $39.19
35.6% Off 
Secondary Air Injection Pipe Gasket
GM
12604517
Injection Pipe Gasket. Air injection system, 3.5L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is...
$3.74
MSRP $5.80
Save $2.06
35.5% Off 
Heated Oxygen Sensor
GM
12695629
1.3L turbo. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special...
$52.95
MSRP $80.85
Save $27.90
34.5% Off 
Air Injection Valve
GM
12619128
4.2L. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is...
$122.81
MSRP $217.37
Save $94.56
43.5% Off 
Heated Oxygen Sensor
GM
12666672
Front. Without vsport. Upper. ATS. 3.6l. Canister & sensors, 3.6L. Camaro. 3.6l. Without v-series. Pre-catalyst. This part requires...
$42.98
MSRP $74.82
Save $31.84
42.6% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12638542
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$23.34
MSRP $37.64
Save $14.30
38% Off 
Secondary Air Injection Pump Bracket
GM
12634458
3.6L with flex fuel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$44.25
Vapor Canister Filter Kit with Seal
GM
19177702
DTS. Cobalt. Canister & sensors. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$66.50
MSRP $117.70
Save $51.20
43.5% Off 
Heated Oxygen Sensor
GM
12565397
All models. 6.0l. All models. 8.1l. Calif. Express, savana. Over 8500 gvw. Without 7.4L, gas, 8.1l. Front of converter, 6.0l. Front of...
$79.69
MSRP $141.05
Save $61.36
43.5% Off 
EGR Valve Gasket
GM
12647008
For EGR Valve. Helps provide a leak-free seal
Allows exhaust pollutants to enter the engine for re-burn
Helps the engine emission system...
$23.61
MSRP $41.10
Save $17.49
42.6% Off 
Mass Airflow Sensor Bolt
GM
11548524
3.6L. 3.0L twin-turbo. 2016-18. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$10.89
MSRP $14.90
Save $4.01
26.9% Off 
Heated Oxygen Sensor
GM
19178930
Detects oxygen content in the exhaust gases to help optimize emissions
This GM Genuine Part is designed, engineered, and tested to...
$78.12
MSRP $138.26
Save $60.14
43.5% Off 
Oxygen Sensor
GM
12696737
Canister & sensors, 6.2L. CT5. 6.2l. Downstream. Right.
$36.45
MSRP $63.44
Save $26.99
42.5% Off 
Oxygen Sensor
GM
12721346
4.3, 5.3, 6.2L. Silverado, sierra. 6.2l. Upstream. Right. Escalade. 6.2l. Suburban. 6.2l. Tahoe. 6.2l. Yukon XL. 6.2l. 6.2L. without...
$38.50
MSRP $67.02
Save $28.52
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