Emission Systems
Vapor Canister Purge Pump Bracket
GM
55501918
2.0L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$15.82
MSRP $21.96
Save $6.14
28% Off 
Emission Reduction Fluid Tank Filler Pipe
GM
23342406
6.6L diesel, emission reduction system, crew cab, 8 ft box. This GM Genuine Part is designed, engineered, and tested to rigorous...
$81.05
MSRP $146.04
Save $64.99
44.5% Off 
Tube
GM
12728740
5.3 & 6.2L, with police. 5.3 & 6.2L, with ppv.
$10.03
MSRP $16.72
Save $6.69
40% Off 
Heated Oxygen Sensor
GM
19178924
Detects oxygen content in the exhaust gases to help optimize emissions
This GM Genuine Part is designed, engineered, and tested to...
$78.62
MSRP $141.66
Save $63.04
44.5% 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
$12.66
MSRP $21.10
Save $8.44
40% Off 
Engine Cooler Seal
GM
55583122
1.6L, egr cooler. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$5.42
MSRP $9.04
Save $3.62
40% 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...
$48.72
MSRP $85.48
Save $36.76
43% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12581194
3.5L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$10.64
MSRP $15.57
Save $4.93
31.7% 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...
$181.61
MSRP $331.70
Save $150.09
45.2% Off 
Vapor Canister Purge Tube
GM
12654018
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$7.73
MSRP $11.31
Save $3.58
31.7% Off 
Module
GM
12746285
6.6L diesel, sensors, at exh pipe. 6.6L diesel, sensors, at converter. 6.6L diesel, sensors, 2024-26, #2.
$61.97
MSRP $97.93
Save $35.96
36.7% Off 
Secondary Air Injection Pipe
GM
12648985
3.6L with flex fuel. Helps maintain controlled air flow to proper air injection components
This GM Genuine Part is designed, engineered,...
$176.45
MSRP $322.28
Save $145.83
45.2% Off 
Vapor Canister
GM
15112165
Suburban, Yukon XL. 3/4 ton. 8.1l. Escalade EXT, esv. 3/4 ton. Avalanche. 3/4 ton. Helps reduce harmful pollutants from entering the...
$221.11
MSRP $403.86
Save $182.75
45.3% 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,...
$68.90
MSRP $124.16
Save $55.26
44.5% Off 
Heated Oxygen Sensor
GM
12578576
This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools needed...
$97.62
MSRP $175.90
Save $78.28
44.5% Off 
Vapor Canister Vent Valve Solenoid
GM
19207763
Incl.Hose. Location-Vapor Canister. Silverado, sierra hybrid. Controls fresh air flow to the canister
Sends fuel vapors to the engine...
$129.99
MSRP $237.42
Save $107.43
45.2% 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
$28.40
MSRP $41.52
Save $13.12
31.6% Off 
Black Multi-Purpose Pigtail
GM
13585858
Protective outer coverings help provide long-lasting durability
Color-coded wires allow for easy installation
$29.72
MSRP $50.88
Save $21.16
41.6% Off 
Exhaust Gas Recirculation Pipe
GM
40009037
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$28.52
MSRP $50.04
Save $21.52
43% Off 
By-Pass Hose
GM
12584338
2.0L, #1. 2.0L supercharged, return.
$39.41
MSRP $60.65
Save $21.24
35% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12673862
1.4L, 3 ends. 1.5L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$47.62
MSRP $83.54
Save $35.92
43% Off 
Secondary Air Injection Pump Hose
GM
25817029
2.4L, air injection pump. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$31.33
MSRP $54.96
Save $23.63
43% Off 
Secondary Air Injection Pump Bracket
GM
12638137
A.i.r. Pump, 3.6L with pzev. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$59.65
MSRP $94.28
Save $34.63
36.7% 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...
$126.68
MSRP $231.38
Save $104.70
45.3% Off 
Positive Crankcase Ventilation (PCV) Hose
GM
12643296
2.4L. PCV hose. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$5.15
MSRP $8.58
Save $3.43
40% 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...
$191.06
MSRP $348.96
Save $157.90
45.2% 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...
$119.39
MSRP $218.06
Save $98.67
45.2% Off 
Heated Oxygen Sensor
GM
12643707
Canyon, Colorado. 2.5l. Upper. Upstream. Malibu. 2.0l, 2.5l. 2.0L turbo. Regal. 2.0l. 2.4L. This part requires programming and/or...
$44.51
MSRP $68.74
Save $24.23
35.2% Off 
Vapor Canister Solenoid Valve Bracket
GM
84310455
4.3, 5.3, 6.2L. 2.7L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$20.72
MSRP $30.30
Save $9.58
31.6% Off 
Vapor Canister
GM
85158842
XT5. 2.0l. XT6. 2.0l. Blazer. 2.0l.
$292.55
MSRP $481.35
Save $188.80
39.2% Off 
Fuel Tank Vent Hose
GM
84884403
Fuel filler pipe. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$42.34
MSRP $61.90
Save $19.56
31.6% Off 
Evaporative Emissions System Lines
GM
85818014
Rear, convertible.
$112.06
MSRP $204.68
Save $92.62
45.3% Off 
Nitrogen Oxides Sensor
GM
24001918
NOX Sensor. 2.8L turbo diesel egr valve & related components. lower. Detects the nitrogen oxide content of the exhaust to help optimize...
$164.35
MSRP $300.18
Save $135.83
45.2% 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...
$32.07
MSRP $56.26
Save $24.19
43% 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,...
$249.58
MSRP $455.85
Save $206.27
45.2% Off 
Vapor Canister
GM
84316430
Malibu. 1.8l. Helps reduce harmful pollutants from entering the atmosphere
Captures fuel vapors to be re-burned in the engine
This GM...
$98.72
MSRP $148.23
Save $49.51
33.4% Off 
Heated Oxygen Sensor
GM
12608662
Impala, Monte Carlo. 3.5l, 3.9l. G6. Left. Rear. 3.5 & 3.9L with flex fuel. Aura. 3.6l. This part requires programming and/or special...
$70.55
MSRP $127.12
Save $56.57
44.5% Off 
Air Injection Valve
GM
12619127
California emissions, front. Seville. Helps prevent exhaust from entering air pump
This GM Genuine Part is designed, engineered, and...
$311.45
MSRP $568.86
Save $257.41
45.3% Off 
Vapor Canister Hose
GM
20827320
3.6L with flex fuel. 3.5 & 3.9L. 5.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$80.53
MSRP $145.10
Save $64.57
44.5% 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...
$54.78
MSRP $96.10
Save $41.32
43% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12648746
3.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$30.53
MSRP $53.56
Save $23.03
43% Off 
Vapor Canister Vent Hose
GM
84429641
3.6L, without awd, 2nd design. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$61.80
MSRP $111.36
Save $49.56
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