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    • Dorman® Air Injection Pump Bushing
      (0 reviews)
      # sp6888
      Dorman’s A.I.R. Pump comes with all the hardware and other components necessary for a complete repair. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.
      $11.87 - $97.05
    • Denso® Oxygen Sensor
      (7 reviews)
      # sp4673
      Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate...
      $15.68 - $414.81
    • Dorman® Vapor Canister Purge Valve
      (1 reviews)
      # sp6940
      Vapor Canister Purge Valve by Dorman®. Dorman’s Vapor Canister Purge Valve restores on-board diagnosis of the EVAP system. Plus, its high quality metal and plastic construction keeps the system working properly, year after year.
      $20.03 - $292.69
    • Spectra Premium® Oxygen Sensor
      (0 reviews)
      # sp5348
      Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most rigorous testing...
      $20.58 - $321.25
    • NTK® Oxygen Sensor
      (10 reviews)
      # sp5156
      Replacement Oxygen Sensor by NTK®. This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen sensor is made of premium quality material and extensively...
      $16.42 - $258.30
    • Dorman® PCV Valve Cover
      (0 reviews)
      # sp7026
      PCV Valve Cover by Dorman®. Stop vacuum leaks and restore drivability with Dorman’s PCV Valve Cover. It effectively regulates the flow of blow-by gasses, returning the engine and the brakes to proper operation.
      $7.23
    • Delphi® EGR Valve
      (1 reviews)
      # sp5758
      EGR Valve by Delphi®. Delphi exhaust gas recirculation (EGR) valves are a 100 percent OE line, providing an exact fit without the need for orifice washers or clocking for fast, easy installation. Precision manufacturing provides...
      $47.22 - $246.88
    • Standard® Tru-Tech™ Air Injection Pump Check Valve
      (0 reviews)
      # sp5452
      Tru-Tech™ Air Injection Pump Check Valve by Standard®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your time...
      $13.34 - $21.47
    • Bosch® Premium Oxygen Sensor
      (2 reviews)
      # sp1743
      Premium Oxygen Sensor by Bosch®. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is equally efficient in...
      $16.02 - $248.87
    • Delphi® Oxygen Sensor
      (0 reviews)
      # sp5756
      Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most innovative...
      $16.60 - $208.01
    • Dorman® Secondary Air Injection Check Valve
      (0 reviews)
      # sp6887
      Secondary Air Injection Check Valve by Dorman®. The A.I.R. Check Valve is an emission control device that allows air into the exhaust system to help burn pollutants before they reach the atmosphere. Dorman’s A.I.R Check Valve is...
      $3.35 - $209.85
    • Standard® Tru-Tech™ EGR Valve
      (1 reviews)
      # sp5456
      Tru-Tech™ EGR Valve by Standard®.Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of repair, but before you waste your time and gas running out to...
      $2.19 - $122.25
    • Dorman® Air Pump Pulley
      (0 reviews)
      # sp6889
      Air Pump Pulley by Dorman®. An integral part of the drive system for belt-driven air pumps. Dorman’s Air Pump Pulley helps restore the air pump to proper functioning-and helps your vehicle pass emissions inspection. It’s...
      $9.55 - $22.63
    • Dorman® EGR Cooler / Intake Gasket Kit
      (0 reviews)
      # sp6890
      EGR Cooler / Intake Gasket Kit by Dorman®. Manufactured specifically for diesel vehicles, Dorman’s EGR Cooler is quality-engineered to cool exhaust gas and recirculate it back to the engine. Replacement prevents coolant from...
      $17.42 - $611.35
    • Dorman® Emission Control Connector
      (0 reviews)
      # sp6266
      Emission Control Connector Connector by Dorman®. Dorman offers a comprehensive line of Emission Control Connectors for a wide range of applications. All the connectors are constructed of high-quality materials for long-lasting...
      $10.65 - $36.09




    Guides & Articles

    • Auto Repair Parts
      An oxygen sensor (also known as an O2 sensor or Lambda sensor) is a sensor designed to generate a reading based on the content of oxygen in an automotive exhaust system. The sensor itself is made of a ceramic compound with porous-shaped electrodes coated in platinum, surrounded by a protective metal shell casing. O2 sensor casings are threaded, and the entire unit is designed to screw in until it reaches a half-in, half-out position on the exhaust pipe. Modern oxygen sensors are heated to ensure they reach operating temperature quickly.

    Popular Products

    GMC Emission Control Parts Reviews

    Average rating:  5  5 - 6 reviews
    4.5 of 5
    Exact Fit For My Envoy 2002
    Couldn't get over 40 miles per hour with out it bogging down, moved 3 bolts at the top and a couple from the back, took a bit to wiggle out backwards but it came out and the new unit slid in. Tightened the bolts and started it up, slight air leak in the gasket, probably will have to re-tighten again as it settles into position. Power is back. Runs perfect now. I would buy and do this again. J.
    JPosted by Jeffrey M (Ann Arbor, MI) /
    2002 GMC Envoy
    Was this review helpful for you? Yes
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