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The Rapid Motor Vehicle Company was founded more than a century ago and entered the market with some of the very first trucks being high-end at the time they were built. In 1909, it joined the automobile manufacturing industry giant, General Motors, and it was when the up-and-coming GMC brand was born and began its continuing story of success. This manufacturer is remarkable for its regular truck and utility vehicles. Highly praised for their marvelous ability to keep up with the fast-developing industry, the company caters to the tastes of their numerous customers. Their exclusive and reliable vehicles rolling off the assembly lines in well-equipped plants are all about elegant style, exceptional durability, and new technologies. That’s why now the GMC brand enjoys great sales and popularity worldwide.

The first emission control systems were designed in the 1960s and since then they have been an integral part of any modern vehicle. These days, when environmental protection is considered to be a burning issue, the emission systems have become more important and complex than ever, as controlling the formation of harmful hydrocarbons is impossible without this mechanism. Although GMC vehicles boast their state-of-the-art emission control systems, they require proper care. To prolong this system's life, prevent its possible malfunctions, or fix the existing ones, we offer GMC replacement emission control parts including premium-quality air pumps, oxygen sensor connectors, vapor canisters, and many others. Available at very affordable prices, our GMC emission control parts will make your vehicle run cleaner.

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    • (4 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...
      Improves gas mileageBoosts engine performance
      $16.20 - $293.22
    • (2 reviews)
      # sp4187
      EGR Valve by Dorman®. An essential part of the exhaust gas recirculation system, Dorman’s EGR Valve effectively recirculates exhaust gas to be re-burned in the intake manifold. It withstands extreme heat and carbon build-up for a...
      Direct replacement for a proper fitIncludes gasket for a tight seal
      $2.22 - $622.95
    • (0 reviews)
      # sp13481
      Intermotor™ EGR Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $28.49 - $858.17
    • (17 reviews)
      # sp10058
      Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader, for the finest emission...
      5 Year / 50,000 Miles Warranty on Structural Components5 Year / 50,000 Miles Warranty on Exhaust Emission (CARB Models)
      $86.48 - $846.42
    • (0 reviews)
      # sp10547
      GM Original Equipment™ Vapor Canister by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $29.04 - $276.83
    • (0 reviews)
      # sp27186
      GM Original Equipment EGR Valve Motor by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $164.39
    • (9 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...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $15.55 - $506.53
    • (1 review)
      # 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...
      Extensive domestic and import coverageMeets federal emissions regulations
      $45.78 - $208.67
    • (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...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      +3
      $17.83 - $233.59
    • (1 review)
      # 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...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $11.51 - $267.54
    • (1 review)
      # 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.
      Mounting hardware included (where applicable)O-ring included (where applicable)
      $14.43 - $453.92
    • (1 review)
      # 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.
      Save money by replacing only the failed pump - instead of the entire mating cover assemblyIncludes gasket, mounting screws, and alternate electrical connectors
      $11.55 - $404.99
    • (0 reviews)
      # sp10025
      Crankcase Breather Cap by MotoRad®. Manufactured from high quality components by an OE Supplier. MotoRad oil caps provide proper fit and sealing to prevent oil loss.
      Provides Proper sealingPrevents oil loss
      $4.11 - $5.09
    • (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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $14.75 - $22.92
    • (0 reviews)
      # sp26975
      Engine Exhaust Valve by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories,...
      Makes installation quick and easyOptimal OE-style fit and quality
      $70.88




    Guides & Articles

    • Replacement Emission Control Parts
      Oxygen Sensors - Why Does My Car Have Four, And Can I Replace One Myself?
      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.
      August 18, 2014

    Popular Products

    GMC Emission Control Parts Reviews

    Average rating:  5  5 - 7 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) / November 28, 2015
    2002 GMC Envoy
    Was this review helpful for you? Yes
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