Emission Systems for 2004 GMC Sierra 2500 HD
Select Emission Systems part
Heated Oxygen Sensor
ACDelco
213-3867
GM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These...
Positions: Downstream Right
$80.49
Fits Your Vehicle
Multi-Purpose Wire Connector
ACDelco
PT2307
ACDelco Gold (Professional) Air Charge Temperature Sensor Connector are a high quality alternative to Original Equipment (OE) parts....
Positions: Front
$35.40
Fits Your Vehicle
Heated Oxygen Sensor
GM
12572705
ACDelco Heated Oxygen Sensor (Part Number: 12572705) is an oxygen sensor with integrated heater used to monitor exhaust oxygen levels...
$103.13
MSRP $188.38
Save $85.25
45.3% Off 
Knock Sensor Grommet
GM
12558177
GM Knock Sensor Grommet (Part Number: 12558177) is an OE grommet/seal used to mount and protect the engine knock sensor. Type:...
$57.53
Wiring Pigtail
ACDelco
PT2195
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended...
$121.45
Fits Your Vehicle
Multi-Purpose Clip
ACDelco
15017318
GM Genuine Parts Multi Purpose Clips are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM...
$31.52
Fits Your Vehicle
Vapor Canister Hose
ACDelco
20934059
GM Genuine Parts Vapor Canister Purge Valve Hoses are designed, engineered, and tested to rigorous standards, and are backed by General...
Positions: At Vapor Canister
$100.72
Fits Your Vehicle
Heated Oxygen Sensor
ACDelco
213-1149
GM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These...
Positions: Downstream Left
$80.83
Fits Your Vehicle
Vapor Canister Vent Hose
ACDelco
15128933
GM Genuine Parts Vapor Canister Vent Hoses are designed, engineered, and tested to rigorous standards, and are backed by General Motors....
$171.62
Fits Your Vehicle
Vapor Canister Hose
ACDelco
20934060
GM Genuine Parts Vapor Canister Purge Valve Hoses are designed, engineered, and tested to rigorous standards, and are backed by General...
Positions: At Vapor Canister
$71.17
Fits Your Vehicle
Multi-Purpose Wiring Connector
ACDelco
PT1154
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended...
$38.53
Fits Your Vehicle
Rear Vapor Canister Vent Hose
ACDelco
25853662
GM Genuine Parts Vapor Canister Vent Hoses are designed, engineered, and tested to rigorous standards, and are backed by General Motors....
Positions: Rear
$105.10
Fits Your Vehicle
Multi-Purpose Clip
GM
10121502
GM Multi-Purpose Clip (Part Number: 10121502) is a retainer clip used for electronic control module mounting or lower side baffle...
$41.84
Wiring Pigtail
ACDelco
PT1136
ACDelco GM Original Equipment Pigtail Connectors are connectors ready to be spliced into vehicle harnesses, and are GM-recommended...
Fits Your Vehicle
Vapor Canister
GM
15130738
Silverado, sierra. Short bed. Helps reduce harmful pollutants from entering the atmosphere
Captures fuel vapors to be re-burned in the...
$191.83
MSRP $351.36
Save $159.53
45.4% Off 
Acdelco™ Vapor Canister
GM
215608
Express, savana. Commercial cutaway. Short bed. 5.9 & 6.5 ft box. Sierra, silverado. 6 ft. box. Bed Length 68.4. Bed Length 69.2"....
Fits Your Vehicle
Vapor Canister Purge Valve
GM
01997279
ACDelco Vapor Canister Purge Valve (Part Number: 1997279) is an emission control purge solenoid used to regulate vapor flow from the...
$76.82
Acdelco™ Oxygen Sensor
GM
2131161
All models. 6.0l. All models. 8.1l. Right. All models. 4.8l. All models. 4.3l. Rear, 8.1l. Silverado, sierra. 5.3l. 6.0L, front of...
Positions: Downstream
Fits Your Vehicle
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