Emission Systems
PCV Tube
GM
25202897
GM Genuine Parts PCV Valve Tubing (Part Number: 25202897) is a PCV (positive crankcase ventilation) tubing assembly intended for...
$87.46
MSRP $157.58
Save $70.12
44.5% Off 
Heated Oxygen Sensor
GM
19209818
Rear. GTO. Post-converter. This part requires programming and/or special setup procedures GM Service Information describes the...
$88.18
MSRP $158.88
Save $70.70
44.5% Off 
Exhaust Gas Recirculation (EGR) Valve Cooler
GM
12635707
ACDelco Exhaust Gas Recirculation (EGR) Valve Cooler (Part Number: 12635707) is an EGR cooler assembly that lowers exhaust-gas...
$530.35
MSRP $973.12
Save $442.77
45.5% Off 
Exhaust Gas Recirculation (EGR) Valve Kit with Gasket
GM
19210655
Stamped #17087196. Under GVW 8,500 Lbs. G10-30 vans. 5.0l. This GM Genuine Part is designed, engineered, and tested to rigorous...
$92.07
MSRP $165.91
Save $73.84
44.5% Off 
Heated Oxygen Sensor
GM
12559850
ACDelco Heated Oxygen Sensor (Part Number: 12559850) is an emissions-control sensor that detects oxygen content in exhaust gases to...
$69.28
MSRP $124.82
Save $55.54
44.5% Off 
Heated Oxygen Sensor
GM
55485043
GM Genuine Parts Heated Oxygen Sensor (Part Number: 55485043) is a heated upstream oxygen sensor (pre-catalyst bank 1 sensor 1) used...
$55.67
MSRP $97.66
Save $41.99
43% Off 
Rear Oxygen Sensor
GM
19355312
Corvette. Post-converter. Suburban 3500hd.
$98.33
MSRP $177.18
Save $78.85
44.5% Off 
Heated Oxygen Sensor
GM
19316344
City Express. Downstream. This part requires programming and/or special setup procedures GM Service Information describes the procedures...
$182.45
MSRP $333.24
Save $150.79
45.2% Off 
F (S)Canister
GM
19436332
LaCrosse. Regal TourX. 2.0L turbo, with awd. 3.6L, with awd. Regal Sportback. 2.0l. Regal Sportback. 3.6l.
$106.23
MSRP $191.39
Save $85.16
44.5% Off 
Heated Oxygen Sensor
GM
12618011
Rear (position 2). 2.4L. This part requires programming and/or special setup procedures GM Service Information describes the procedures...
$82.84
MSRP $149.24
Save $66.40
44.5% Off 
Exhaust Temperature Sensor
GM
19418899
ACDelco Exhaust Temperature Sensor (Part Number: 19418899) is an exhaust temperature sensor that detects exhaust gas temperature to...
$63.53
MSRP $114.46
Save $50.93
44.5% Off 
Driver Side Secondary Air Injection Shut-Off and Check Valve
GM
12633749
Impala. 3.6l. Left. 3.6L with flex fuel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$177.99
MSRP $325.10
Save $147.11
45.3% Off 
Intercooler Bypass Valve Vacuum Tank
GM
12653856
2.0L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$231.17
MSRP $370.38
Save $139.21
37.6% Off 
Position 5 Exhaust Temperature Sensor
GM
55495859
ACDelco Position 5 Exhaust Temperature Sensor (Part Number: 55495859) is an exhaust temperature sensor specified for position #5 on...
$58.22
MSRP $104.90
Save $46.68
44.5% Off 
Emission Reduction Fluid Front Inlet Pipe Assembly
GM
42492083
1.6L, emissions reduction, hatchback. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$268.18
MSRP $489.82
Save $221.64
45.2% Off 
Exhaust Gas Recirculation (EGR) Pipe Gasket
GM
55485151
1.6L, egr pipe gasket. 1.6L, pipe side. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
$5.42
MSRP $7.93
Save $2.51
31.7% Off 
Exhaust Gas Recirculation Manifold Brace
GM
12642552
2017-20, egr valve & related components. 2.8L turbo diesel egr valve & related components. This GM Genuine Part is designed, engineered,...
$7.94
MSRP $13.24
Save $5.30
40% Off 
Heated Oxygen Sensor
GM
19178958
ACDelco Heated Oxygen Sensor (Part Number: 19178958) is an oxygen (O2) sensor with an integrated heater used to monitor exhaust oxygen...
$71.24
MSRP $128.36
Save $57.12
44.5% Off 
Positive Crankcase Ventilation Tube
GM
12664186
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$12.29
MSRP $17.96
Save $5.67
31.6% Off 
Emission Reduction Fluid Tank Support Bracket
GM
23442899
ACDelco Emission Reduction Fluid Tank Support Bracket (Part Number: 23442899) is a support bracket intended to secure the emission...
$22.18
MSRP $36.96
Save $14.78
40% Off 
Emission Reduction Fluid Front Inlet Pipe Assembly
GM
22800969
ACDelco Emission Reduction Fluid Front Inlet Pipe Assembly (Part Number: 22800969) is a front inlet pipe assembly used in DEF/emission...
$296.61
MSRP $541.76
Save $245.15
45.3% Off 
Multi-Purpose Nut
GM
11546366
GM Genuine Parts Multi-Purpose Nut (Part Number: 11546366) is an OEM nut used in steering and drivetrain assemblies across multiple...
$4.92
MSRP $7.20
Save $2.28
31.7% Off 
Exhaust Gas Recirculation (EGR) Valve Kit with Gasket
GM
19210658
Without zr1. 5.7L, 1993-97, manual trans. Buick. Cadillac. 5.7l. Chevrolet. 5.7l. 5.7L, 1993-97, auto trans. This GM Genuine Part is...
$105.49
MSRP $190.07
Save $84.58
44.5% Off 
Exhaust Gas Recirculation (EGR) Valve Pipe Gasket
GM
12580673
ACDelco Exhaust Gas Recirculation (EGR) Valve Pipe Gasket (Part Number: 12580673) is an EGR valve adapter gasket designed to seal the...
$17.57
MSRP $29.28
Save $11.71
40% Off 
A.I.R Pump
GM
25207556
1.3L turbo. 2.7L. Trailblazer. 1.3l. Encore GX. 1.3l.
$100.54
MSRP $181.14
Save $80.60
44.5% Off 
Actuator Tube
GM
12667005
GM Genuine Parts Actuator Tube (Part Number: 12667005) is a charge air bypass valve vacuum tube assembly (TUBE ASM-CHRG AIR BYPASS VLV...
$9.01
MSRP $13.18
Save $4.17
31.6% Off 
Vapor Canister Vent Solenoid
GM
25932571
ACDelco Vapor Canister Vent Solenoid (Part Number: 25932571) is an EVAP system solenoid that controls venting of the vapor canister to...
$29.34
MSRP $51.48
Save $22.14
43% Off 
Heated Oxygen Sensor
GM
12616502
ACDelco Heated Oxygen Sensor (Part Number: 12616502) is an upstream oxygen sensor that detects oxygen content in exhaust gases to...
$84.98
MSRP $153.12
Save $68.14
44.5% Off 
Fuel Tank Vent Pipe
GM
23459280
With awd. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$13.70
MSRP $19.03
Save $5.33
28% Off 
Vapor Canister Vent Solenoid
GM
13575701
ACDelco Vapor Canister Vent Solenoid (Part Number: 13575701) is an OE emission-control solenoid that manages canister purge...
$36.20
MSRP $63.50
Save $27.30
43% Off 
Heated Oxygen Sensor
GM
25182983
ACDelco Heated Oxygen Sensor (Part Number: 25182983) is an oxygen sensor (position 2) with internal heater that detects oxygen content...
$76.40
MSRP $137.66
Save $61.26
44.5% Off 
Passenger Side Engine Mount Vacuum Valve
GM
23335616
GM Genuine Parts Passenger Side Engine Mount Vacuum Valve (Part Number: 23335616) is a vacuum-actuated valve used for engine mount...
$69.28
MSRP $109.49
Save $40.21
36.7% Off 
Multi-Purpose Nut
GM
11546459
GM Multi-Purpose Nut (Part Number: 11546459) is a factory nut supplied for miscellaneous underhood applications. This item is...
$6.62
MSRP $9.68
Save $3.06
31.6% Off 
Vapor Canister Bracket
GM
23428447
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$71.63
MSRP $129.06
Save $57.43
44.5% Off 
Heated Oxygen Sensor
GM
19209805
ACDelco Heated Oxygen Sensor (Part Number: 19209805) Type: Heated oxygen (O2) sensor Function: Detects oxygen content in...
$96.58
MSRP $174.02
Save $77.44
44.5% Off 
F (S)Sensor
GM
55496256
ACDelco Position 1 Exhaust Temperature Sensor (Part Number: 55598259) is an exhaust temperature sensor used to monitor gas temperature...
$55.77
MSRP $97.84
Save $42.07
43% Off 
Temp Sensor
GM
12731716
Exhaust. Silverado, Sierra 2500 HD. At catalytic converter. Front. 6.6L diesel, at manifold. Silverado, Sierra 3500 HD. 6.6L diesel,...
$41.54
MSRP $63.91
Save $22.37
35% Off 
Exhaust Gas Recirculation (EGR) Valve Gasket
GM
55497054
1.6L, egr cooler, large. Equinox, Terrain. 1.6l diesel. Cruze. 1.6l. Helps provide a leak-free seal
Allows exhaust pollutants to enter...
$5.42
MSRP $9.04
Save $3.62
40% Off 
Heated Oxygen Sensor
GM
12601266
3.6. CTS. Rear. Left. STS, STS-v. 3.6l. 3.6L, auto trans. This part requires programming and/or special setup procedures GM Service...
$42.03
MSRP $73.74
Save $31.71
43% Off 
Heated Oxygen Sensor
GM
12590789
3.1l. Front. Detects oxygen content in the exhaust gases to help optimize emissions
This GM Genuine Part is designed, engineered, and...
$60.54
MSRP $109.07
Save $48.53
44.5% Off 
Vapor Canister Purge Solenoid Valve
GM
12666840
ACDelco Vapor Canister Purge Solenoid Valve (Part Number: 12666840, SKU: 12666840 ) is an evaporative emissions control solenoid that...
$14.02
MSRP $23.36
Save $9.34
40% Off 
EGR Tube
GM
12695130
ACDelco EGR Tube (Part Number: 12695130) is an OE-quality exhaust gas recirculation (EGR) pipe assembly that routes exhaust gases for...
$135.76
MSRP $247.96
Save $112.20
45.2% Off 
Vapor Canister Purge Valve
GM
12632174
ACDelco Vapor Canister Purge Valve (Part Number: 12632174) is an evaporative emissions control solenoid valve that regulates vapor...
$37.41
MSRP $65.64
Save $28.23
43% Off 
Vapor Canister
GM
85161070
ACDelco Vapor Canister (Part Number: 85161070) is an evaporative emission control canister (EVAP) designed to capture and store fuel...
$115.23
MSRP $210.46
Save $95.23
45.2% Off 
Positive Crankcase Ventilation (PCV) Tube
GM
12654636
ACDelco Positive Crankcase Ventilation (PCV) Tube (Part Number: 12654636) is an OEM emission-control tube that routes crankcase...
$35.94
MSRP $63.06
Save $27.12
43% 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!