Emission Systems
My Garage
Color
Condition
MSRP
Category
- Belts, Pulleys & Brackets
- Block Parts
- Camshafts, Lifters & Parts
- Complete Engines
- Crankshafts & Parts
- Cylinder Heads & Parts
- Engine Bearings
- Motor Mounts
- Oil Filler Caps
- Oil Pans
- Oil Pumps
- Other
- Pistons, Rings, Rods & Parts
- Rocker Arms & Parts
- Timing Components
- Vacuum Pumps
- Valve Covers
- Valves & Parts
By-Pass Valve
Part Number: 12713477
GM Other Names: Valve, F (S)Valve
Description: Egr cooler by-pass valve. Silverado, Sierra 2500 HD. Diesel. Silverado, Sierra 3500 HD.
Fits:
- Chevrolet:
- Silverado 2500 HD,
- Silverado 3500 HD
- GMC:
- Sierra 2500 HD,
- Sierra 3500 HD
MSRP $373.68
$241.02
Oxygen Sensor
Part Number: 12721346
GM Other Names: Upper Oxygen Sensor, Sensor
Description: Silverado, sierra. 6.2l. Upstream. Right. Without supercharger. Escalade. 6.2l. Suburban. 6.2l. Tahoe. 6.2l. Yukon XL. 6.2l. 5.3, 6.2L....
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Silverado 1500,
- Suburban,
- Tahoe
MSRP $81.92
$53.25
Oxygen Sensor
Part Number: 12721347
GM Other Names: Upper Oxygen Sensor, Sensor
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Silverado 1500,
- Suburban,
- Tahoe
MSRP $96.56
$59.87
Pump
Part Number: 12741165
GM Replaces: 12735887
Description: XT4. Encore GX. 1.2l. Envision. Labeled 12735887. Traverse. 2.5l. 1.2L turbo. Acadia. 2.5l. Trailblazer. 1.2l. 2.0L turbo.
Fits:
- Buick:
- Encore GX,
- Envision,
- Envista
- Cadillac:
- XT4,
- XT5,
MSRP $102.20
$63.36
MSRP $72.20
$46.93
Temp Sensor
Part Number: 12737970
GM Other Names: Module
Replaces: 12728712, 12731767
Description: Exhaust. Silverado, Sierra 2500 HD. At catalytic converter. Rear. Silverado, Sierra 3500 HD.
Fits:
- Chevrolet:
- Silverado 2500 HD,
- Silverado 3500 HD
- GMC:
- Sierra 2500 HD,
- Sierra 3500 HD
MSRP $109.38
$67.82
PCV Tube
Part Number: 12739532
GM Other Names: Oil Hose, Hose
Description: 6.6L diesel, oil lines. 6.6L diesel, upper components.
Fits:
- Chevrolet:
- Silverado 2500 HD,
- Silverado 3500 HD
- GMC:
- Sierra 2500 HD
MSRP $109.04
$67.60
Hose
Part Number: 12740189
GM Replaces: 12718937, 55486661, 55510092
Description: 2.0L.
Fits:
- Cadillac:
- XT4,
- XT5
- Chevrolet:
- Blazer
MSRP $84.64
$59.82
Mass Airflow Sensor
Part Number: 13244778
GM Other Names: Connector Tube, 1303
Description: 2.0L turbo, 2011-2013. Measures the amount of air entering the engine so the ECM can determine the amount of fuel to inject
Fits:
- Buick:
- Regal
MSRP $173.92
$107.83
Diesel Emissions Fluid Level Sensor
Part Number: 20760381
GM Notes: Included with tank.
Other Names: Control Unit
Description: Level & temp module. Silverado, sierra. Temp switch. 2010-16, emission reduction system. Express, savana. 6.6l diesel. 6.6L diesel,...
Fits:
- Chevrolet:
- Cruze,
- Express 2500,
- Express 3500,
- Silverado 2500 HD,
- Silverado 3500 HD
MSRP $393.66
$253.91
Vapor Canister Vent Hose
Part Number: 20853510
GM Notes: Included with filler pipe.
Other Names: Vent Hose
Replaces: 25802840
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Chevrolet:
- Equinox
- GMC:
- Terrain
MSRP $111.36
$69.04
Secondary Air Injection Pump Inlet Hose
Part Number: 20936180
GM Other Names: Air Inlet Tube
Description: 3.6L, with pzev. 2014-15, with pzev. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by...
Fits:
- Cadillac:
- ATS,
- CTS
MSRP $137.44
$85.21
Diesel Emissions Fluid (DEF) Exhaust Front Pipe Injector Supply Pipe
Part Number: 20972739
GM Other Names: Feed Line
Replaces: 15951626
Description: 2010-16 with diesel emission reduction system. front. This GM Genuine Part is designed, engineered, and tested to rigorous standards and...
Fits:
- Chevrolet:
- Express 2500,
- Express 3500
- GMC:
- Savana 2500,
- Savana 3500
MSRP $57.67
$44.98
Egr Valve
Part Number: 21008566
GM Other Names: Valve
Description: Sohc. Saturn.
Fits:
- Saturn:
- SC1,
- SL,
- SL1,
- SL2,
- SW1,
MSRP $152.26
$94.40
Vapor Canister Vent Solenoid
Part Number: 21994122
GM Other Names: Vent Control Solenoid, 9792
Replaces: 25675824
Description: Bonneville, LeSabre. Park Avenue. With supercharger 1998-2005. Seville. California emissions. 2000-03. Federal emissions. Aurora....
Fits:
- Buick:
- LeSabre,
- Park Avenue,
- Riviera
- Cadillac:
- DeVille,
- Seville
MSRP $65.03
$42.26
Black Multi-Purpose Pigtail
Part Number: 13586114
GM Other Names: Air Temp Sensor Connector, pt2830
Replaces: 12102747, 89027277, 89027292
Description: Modulator, #3. 3.8L. 1993-97, #3. 3.4L. G5. Auto trans. Protective outer coverings help provide long-lasting durability
Color-coded...
Fits:
- Chevrolet:
- Camaro,
- Impala,
- Lumina,
- Monte Carlo,
- S10,
MSRP $47.49
$31.60
Multi-Purpose Stud
Part Number: 14062201
GM Other Names: Stud
Replaces: 12561093
Description: 2.2L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Chevrolet:
- S10
- GMC:
- Sonoma
$7.60
Vapor Canister
Part Number: 15109431
GM Notes: Included with valve assembly.
Other Names: Vapor Canister, 1658
Replaces: 12573648
Description: Tahoe, Yukon. Escalade ESV. Suburban. Yukon XL. Helps reduce harmful pollutants from entering the atmosphere
Captures fuel vapors to be...
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Suburban,
- Tahoe
- GMC:
- Sierra 1500,
MSRP $348.36
$224.69
Vent Pipe
Part Number: 26395030
GM Other Names: Line, F (S)Pipe
Description: Traverse. Canister to engine. Acadia.
Fits:
- Buick:
- Enclave
- Chevrolet:
- Traverse
- GMC:
- Acadia
MSRP $82.20
$53.43
Canister Hose
Part Number: 26395031
GM Other Names: F (S)Hose
Fits:
- Buick:
- Enclave
- Chevrolet:
- Traverse
- GMC:
- Acadia
MSRP $96.82
$60.03
Hose & Tube Assembly
Part Number: 26556238
GM Other Names: F Hose
Replaces: 26383055, 26504789
Description: Fwd.
Fits:
- Chevrolet:
- Equinox
- GMC:
- Terrain
MSRP $286.40
$221.67
Emission Reduction Fluid Tank Reservoir Wire Harness
Part Number: 39118692
GM Notes: Included with tank assembly.
Other Names: Wire Harness
Replaces: 13479311, 39083843
Description: 1.6L, reduction tank & components, sedan. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed...
Fits:
- Chevrolet:
- Cruze
MSRP $162.18
$100.55
Pressure Sensor
Part Number: 39118775
GM Notes: Included with tank assy.
Other Names: F (S)Sensor Kit
Description: 1.6L, reduction tank & components, hatchback.
Fits:
- Chevrolet:
- Cruze
MSRP $102.12
$63.31
Exhaust Gas Recirculation Pipe
Part Number: 40009037
GM Notes: Includes Cooler Pipe Gasket.
Other Names: Pipe
Replaces: 55496727
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Suburban,
- Tahoe
- GMC:
- Yukon,
MSRP $40.94
$26.61
Nitrogen Oxide Sensor
Part Number: 40009339
GM Other Names: Upper Nox Sensor, Sensor
Replaces: 12686784
Description: 3.0L diesel, sensors, 2021-24. Upper. Escalade. 3.0l diesel. Suburban. 3.0l diesel. Tahoe. 3.0l diesel. Yukon. 3.0l diesel.
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Suburban,
- Tahoe
- GMC:
- Yukon,
MSRP $198.82
$123.27
Vapor Canister
Part Number: 42763670
GM Other Names: F (S)Canister
Replaces: 42747001
Description: Helps reduce harmful pollutants from entering the atmosphere
Captures fuel vapors to be re-burned in the engine
Fits:
- Buick:
- Encore
- Chevrolet:
- Trax
MSRP $376.38
$276.74
Feed Line
Part Number: 42832891
GM Other Names: Tube, F (S)Pipe
Fits:
- Buick:
- Envista
- Chevrolet:
- Trax
MSRP $74.60
$48.49
F (S)Canister
Part Number: 42899339
GM Replaces: 84428586, 86526175
Description: LaCrosse. Fwd. 90 degree connector.
Fits:
- Buick:
- LaCrosse
MSRP $374.02
$241.24
Heated Oxygen Sensor
Part Number: 55485043
GM Other Names: Upper Oxygen Sensor
Description: 1.8L. This part requires programming and/or special setup procedures GM Service Information describes the procedures and special tools...
Fits:
- Chevrolet:
- Malibu
MSRP $95.28
$59.07
Exhaust Gas Recirculation (EGR) Valve Cooler Temperature Sensor
Part Number: 55488437
GM Other Names: Temp Sensor
Description: 2017-20, egr valve & related components, exhaust manifold. 2.8L turbo diesel, egr valve & related components, exhaust manifold. This GM...
Fits:
- Chevrolet:
- Colorado
- GMC:
- Canyon
MSRP $105.34
$65.31
Heated Oxygen Sensor
Part Number: 55489474
GM Other Names: Oxygen Sensor
Description: XT4. Up stream. Upstream. Upper. Bank 1 sensor 1. Acadia. 2.0l. Blazer. 2.0l. This part requires programming and/or special setup...
Fits:
- Buick:
- Envision
- Cadillac:
- CT4,
- CT5,
- CT6,
- XT4,
MSRP $72.13
$46.89
Position 2 Exhaust Temperature Sensor
Part Number: 55495856
GM Other Names: Temp Sensor
Replaces: 55593636
Description: 2017-20, egr valve & related components, catalytic converter, lower. Express, savana. 2.8l diesel. Position #2. Canyon, Colorado. 2.8l...
Fits:
- Chevrolet:
- Colorado,
- Express 2500,
- Express 3500
- GMC:
- Canyon,
- Savana 2500,
MSRP $100.32
$62.20
Position 4 Exhaust Temperature Sensor
Part Number: 55495858
GM Other Names: Temp Sensor
Replaces: 55487646
Description: 2017-20, egr valve & related components, muffler with tpipe, front. 2.8L turbo diesel, egr valve & related components, muffler with...
Fits:
- Chevrolet:
- Colorado,
- Express 2500,
- Express 3500
- GMC:
- Canyon,
- Savana 2500,
MSRP $103.18
$63.97
Position 5 Exhaust Temperature Sensor
Part Number: 55495859
GM Other Names: Temp Sensor
Replaces: 55593639
Description: Express, savana. 2.8l diesel. Position #5. Canyon, Colorado. 2.8l diesel. Rear. Right. Helps provide accurate temperature detection
Heat...
Fits:
- Chevrolet:
- Colorado,
- Express 2500,
- Express 3500
- GMC:
- Canyon,
- Savana 2500,
MSRP $102.34
$63.45
Exhaust Gas Recirculation Pipe Seal
Part Number: 55496593
GM Notes: Included with outlet pipe.
Other Names: Seal
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Suburban,
- Tahoe
- GMC:
- Yukon,
MSRP $3.32
$3.12
Sensor
Part Number: 55511824
GM Replaces: 55497864, 55595726
Description: 1.6L, sensors, position 2. Equinox, Terrain. 1.6l diesel. Position 2 lower cat. Cruze. 1.6l. Exhaust temp. On particulate filter. 1.6L,...
Fits:
- Chevrolet:
- Cruze,
- Equinox
- GMC:
- Terrain
MSRP $86.50
$53.63
Purge Line Clip
Part Number: 55501421
GM Notes: Included with purge line.
Other Names: Clip
Description: 2019.
Fits:
- Cadillac:
- CT6
$4.76
Camshaft Housing with Cover and Positive Crankcase Ventilation (PCV) Hose
Part Number: 55502474
GM Other Names: F (S)Housing
Replaces: 55493667, 55499550
Description: 1.6L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Chevrolet:
- Cruze
MSRP $155.80
$110.12
Valve Bolt
Part Number: 55506224
GM Other Names: Regulator Valve Bolt, Purge Valve Bolt, Bolt
Description: 1.2L turbo.
Fits:
- Buick:
- Encore GX
- Chevrolet:
- Trailblazer,
- Trax
$4.49
Cooler
Part Number: 19436523
GM Replaces: 55490697, 55499206, 55508011
Description: 1.8L.
Fits:
- Chevrolet:
- Malibu
MSRP $1,884.22
$1,342.53
F (S)Valve
Part Number: 12737254
GM Replaces: 55509566, 55581253
Description: 1.8L.
Fits:
- Chevrolet:
- Malibu
MSRP $57.31
$44.69
Exhaust Gas Recirculation (EGR) Valve
Part Number: 55510254
GM Notes: Includes EGR Valve Gasket.
Other Names: Egr Valve
Replaces: 55490566
Description: Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Cadillac:
- Escalade,
- Escalade ESV
- Chevrolet:
- Silverado 1500,
- Silverado 1500 LTD,
- Suburban,
MSRP $143.70
$89.09
PCV Tube
Part Number: 55510739
GM Other Names: Tube
Description: 2.0L turbo. 2021-25.
Fits:
- Buick:
- Envision
- Cadillac:
- XT4,
- XT5,
- XT6
- Chevrolet:
- Blazer
MSRP $16.26
$14.65
Heated Oxygen Sensor
Part Number: 55565000
GM Other Names: Oxygen Sensor
Description: Astra. Rear (position 2). This part requires programming and/or special setup procedures GM Service Information describes the procedures...
Fits:
- Saturn:
- Astra
MSRP $105.80
$65.60
Vapor Canister Purge Valve Bracket
Part Number: 55569457
GM Other Names: Purge Valve Bracket
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Buick:
- Cascada
$4.61
Vapor Canister Purge Solenoid Valve Bracket
Part Number: 55575565
GM Other Names: Purge Valve Bracket
Description: Without diesel 1.8L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Fits:
- Chevrolet:
- Cruze,
- Cruze Limited,
- Sonic
MSRP $27.66
$17.98
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!

