Emission Systems
Positive Crankcase Ventilation (PCV) Hose
GM
12643296
GM Genuine Parts Positive Crankcase Ventilation (PCV) Hose (Part Number: 12643296) is an OEM replacement hose for the PCV system...
$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 
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
ACDelco Air Injection Valve (Part Number: 12567733) is a check/control valve used in the secondary air injection (AIR) system to...
$119.39
MSRP $218.06
Save $98.67
45.2% Off 
Canister Hose
GM
22948012
GM Genuine Parts F (S)Hose (Part Number: 22948012) is an evaporative emissions system hose used to route and contain vapor or purge...
$56.81
MSRP $83.04
Save $26.23
31.6% Off 
Heated Oxygen Sensor
GM
12643707
ACDelco Heated Oxygen Sensor (Part Number: 12643707) is an upstream heated oxygen (O2) sensor that detects oxygen content in exhaust...
$44.51
MSRP $68.74
Save $24.23
35.2% Off 
Oxygen Sensor
GM
19355306
ACDelco Oxygen Sensor (Part Number: 19355306) is a heated oxygen sensor assembly intended to provide accurate air/fuel feedback to...
$66.48
MSRP $119.78
Save $53.30
44.5% 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
GM Nitrogen Oxides Sensor (Part Number: 24001918) is an emissions control sensor manufactured to OE specification to detect NOx...
$164.35
MSRP $300.18
Save $135.83
45.2% Off 
Exhaust Gas Recirculation Cooler Temperature Sensor
GM
12677346
ACDelco Exhaust Gas Recirculation Cooler Temperature Sensor (Part Number: 12677346) is an EGR cooler temperature sensor designed to...
$32.07
MSRP $56.26
Save $24.19
43% Off 
Diesel Emissions Reduction Fluid (DEF) Injector
GM
12647372
ACDelco Diesel Emissions Reduction Fluid (DEF) Injector (Part Number: 12647372) is an aftermarket emission‑system injector engineered...
$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
ACDelco Heated Oxygen Sensor (Part Number: 12608662) is a heated O2 sensor used to detect oxygen content in exhaust gases and support...
$70.55
MSRP $127.12
Save $56.57
44.5% Off 
Air Injection Valve
GM
12619127
ACDelco Air Injection Valve (Part Number: 12619127) Note: Input abbreviations expanded on first mention — Secondary (SECD) and...
$311.45
MSRP $568.86
Save $257.41
45.3% Off 
Vapor Canister Hose
GM
20827320
ACDelco Vapor Canister Hose (Part Number: 20827320, SKU: 20827320 ) is an emission-control hose that routes vapor to and from the...
$80.53
MSRP $145.10
Save $64.57
44.5% Off 
Heated Oxygen Sensor
GM
12645561
ACDelco Heated Oxygen Sensor (Part Number: 12645561) is a heated O2 sensor assembly that measures exhaust oxygen content to support...
$54.78
MSRP $96.10
Save $41.32
43% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12648746
GM Genuine Parts Positive Crankcase Ventilation (PCV) Tube (Part Number: 12648746) is an OE PCV fresh-air tube that routes crankcase...
$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
44.5% Off 
Vapor Canister Air Inlet Hose
GM
84940072
Manufactured to GM OE specification for fit, form, and function
$55.81
MSRP $100.56
Save $44.75
44.5% Off 
Heated Oxygen Sensor
GM
12668435
ACDelco Heated Oxygen Sensor (Part Number: 12668435) is a pre-catalyst heated oxygen sensor (bank 1) that measures oxygen content in...
$43.33
MSRP $76.02
Save $32.69
43% Off 
Vapor Canister Bracket
GM
20958879
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$71.61
MSRP $129.02
Save $57.41
44.5% Off 
Emission Reduction Fluid Control Module
GM
84880436
ACDelco Emission Reduction Fluid Controller (Part Number: 39152674) is a control module assembly for emission reduction fluid systems...
$108.29
MSRP $195.12
Save $86.83
44.5% Off 
Vapor Canister Vent Hose
GM
84626475
FILLER PIPE. crew cab 5.8 ft box. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$47.23
MSRP $72.68
Save $25.45
35% Off 
Emission Reduction Fluid Tank Filler Pipe
GM
84648525
2017-20, emission reduction system. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$71.04
MSRP $128.00
Save $56.96
44.5% Off 
Vapor Canister Purge Tube
GM
12611130
ACDelco Vapor Canister Purge Tube (Part Number: 12611130) is an emission control tube that routes evaporative purge vapors between the...
$16.22
MSRP $27.04
Save $10.82
40% 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,...
$63.43
MSRP $114.28
Save $50.85
44.5% Off 
Vapor Canister
GM
42763670
ACDelco Vapor Canister (Part Number: 42763670) is an evaporative emission (Evaporative Emission (EVAP)) canister assembly engineered...
$240.78
MSRP $385.78
Save $145.00
37.6% Off 
Secondary Air Injection Pump with Bracket
GM
12630667
ACDelco Secondary Air Injection Pump with Bracket (Part Number: 12630667) is a pump assembly used in secondary air injection systems...
$184.43
MSRP $336.86
Save $152.43
45.3% 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
$43.21
MSRP $66.49
Save $23.28
35% Off 
Fluid Pipe
GM
87812318
ACDelco Diesel Exhaust Fluid (Def) Feed Line (Part Number: 87812318) is a DEF feed line for emission reduction systems on diesel...
$68.55
MSRP $123.52
Save $54.97
44.5% Off 
Exhaust Temperature Sensor
GM
19418900
GM Genuine Parts Exhaust Temperature Sensor (Part Number: 19418900) is an exhaust gas temperature sensor assembly built to GM OE...
$59.71
MSRP $107.58
Save $47.87
44.5% Off 
Emission Reduction Fluid Tank Filler Pipe
GM
23342403
6.6L diesel, emission reduction system, double cab, 6.9 ft box. This GM Genuine Part is designed, engineered, and tested to rigorous...
$72.29
MSRP $114.26
Save $41.97
36.7% Off 
Exhaust Temperature Sensor
GM
55499759
ACDelco Exhaust Temperature Sensor (Part Number: 55499759) is a temperature sensing device positioned before the diesel particulate...
$40.66
MSRP $71.34
Save $30.68
43% Off 
Emission Reduction Fluid Tank Filler Pipe
GM
84720024
Emission reduction system, 3.0L diesel, reduction tank, short bed. This GM Genuine Part is designed, engineered, and tested to rigorous...
$82.78
MSRP $149.16
Save $66.38
44.5% Off 
Vapor Canister Vent Valve
GM
20880503
ACDelco Vapor Canister Vent Valve (Part Number: 20880503) is an evaporative emission (EVAP) system vent valve / solenoid that controls...
$36.95
MSRP $64.82
Save $27.87
43% Off 
Exhaust Gas Recirculation (EGR) Valve Kit with Pipe, Connectors, and Gasket
GM
89018175
ACDelco Exhaust Gas Recirculation (EGR) Valve Kit with Pipe, Connectors, and Gasket (Part Number: 89018175) is an emission control kit...
$223.27
MSRP $407.80
Save $184.53
45.3% Off 
Diesel Emissions Fluid (DEF) Tank Filler Cap
GM
22753134
2010-16, emission reduction system. 2017-20, emission reduction system. 6.6L diesel, emission reduction system, 2017-19. 6.6L diesel,...
$19.31
MSRP $32.18
Save $12.87
40% Off 
Evaporative Emission Pipe
GM
42854468
Encore GX. To canister. 1.2L turbo. 1.3L turbo.
$45.22
MSRP $79.34
Save $34.12
43% Off 
Heated Oxygen Sensor
GM
55506886
ACDelco Heated Oxygen Sensor (Part Number: 55506886) is an OE heated oxygen sensor (pre-catalyst) designed to detect oxygen content in...
$63.88
MSRP $115.10
Save $51.22
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