The Secondary Air Injection System, also known as the Air Injection Reactor (AIR) system, pumps fresh air into the exhaust system to cause further oxidation of unburned fuel in the exhaust, reducing Hydrocarbons (HC) and Carbon Monoxide (CO) emissions. The system includes an electric or belt-driven air pump, an air control valve, a vacuum switch, a diverter valve, one-way check valves, and hoses and tubing.

1 - 60 of 1142 results
Show items:
Sort by:
    • (0 reviews)
      # sp5534
      Air Pump by Motorcraft®. Keep your vehicle's emission control system functioning properly with this quality product. Manufactured for your specific vehicle, the part meets strict Ford Motor Company standards and incorporates all OE...
      Designed for specific Ford, Mercury, and Lincoln vehiclesBuilt to strict Ford Motor Company specifications
      $124.04 - $190.48
    • (0 reviews)
      # sp12669
      Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $123.72
    • (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)
      # 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)
      # sp13480
      Intermotor™ Secondary Air Injection Pump 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $434.09 - $452.11
    • (0 reviews)
      # sp27946
      Air Injection Pump 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 all...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $103.68 - $377.38
    • (0 reviews)
      # sp32208
      Secondary Air Injection Pump by MTC®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $343.21
    • (2 reviews)
      # sp1817
      EGR Systems by Pierburg®. 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 the auto...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $36.05 - $601.21
    • (0 reviews)
      # sp5409
      Oxygen Sensor by Motorcraft®. Restore your vehicle's performance and make its emissions compliant with this product. Designed to precisely fit your Ford, Lincoln, or Mercury, the oxygen sensor features OE connectors and wire...
      Direct OEM replacementRecommended by Ford Motor Company
      $9.96 - $332.40
    • (0 reviews)
      # sp2082
      Air Pump by CVJ®. 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 the auto parts...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $426.73 - $547.66
    • (0 reviews)
      # sp27970
      Intermotor Emission System 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $16.27 - $275.03
    • (0 reviews)
      # sp27201
      GM Original Equipment Secondary Air Injection Pump 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $79.58 - $268.62
    • (0 reviews)
      # sp46587
      by S® -tandart Steering Angle Sensor Connector. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $69.68 - $97.77
    • (0 reviews)
      # sp24704
      Select Vacuum Pump by Cardone®. CARDONE Select Engineered (CSE) Technology ensures that all vacuum pumps meet or exceed O.E. form, fit and function.
      50-state emissions street legalThe finest quality at a great price
      $62.68 - $271.38
    • (0 reviews)
      # sp25313
      Diesel Emissions Fluid Module by Dorman®. Dorman has all the components needed for a complete repair. Quickly and easily installed, it eliminates the clunking noise that may result when this part fails, while restoring original...
      Easy to installDirect replacement for a proper fit
      $1,791.95
    • (0 reviews)
      # sp13460
      Air Injection Pump by Genuine®. 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...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $9.71 - $797.52
    • (2 reviews)
      # sp2079
      Air Pump by Pierburg®. 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 the auto...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $36.05 - $601.21
    • (0 reviews)
      # sp27198
      GM Original Equipment Secondary Air Injection Check Valve 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.64 - $221.57
    • (0 reviews)
      # sp27203
      GM Original Equipment Secondary Air Injection Shut-Off Valve by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.64 - $221.16
    • (0 reviews)
      # sp27197
      GM Original Equipment Secondary Air Injection Bypass Valve by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $5.64 - $126.50
    • (0 reviews)
      # sp49526
      GM Original Equipment™ Diesel Emissions Fluid Level Sensor by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $71.48
    • (0 reviews)
      # sp27955
      Emission System 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 all...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $4.15 - $528.90
    • (0 reviews)
      # sp76676
      TechSmart™ Secondary Air Injection Bypass 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $65.50
    • (0 reviews)
      # sp9389
      Air Injection Pump Relay and Connector 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $20.65 - $33.18
    • (0 reviews)
      # sp55027
      Remanufactured Vacuum Pump Pulley by A1 Cardone®. Domestic. With Instruction Sheet, Bubble Film. Pulley Type: Flat Pulley.
      50-state emissions street legalThe finest quality at a great price
      $23.44
    • (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...
      High quality plastic and/or steel constructionDirect replacement for a proper fit every time
      $10.00 - $22.91
    • (1 review)
      # 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...
      Include gaskets and mounting hardware for a complete repairDirect replacement for a proper fit every time
      $3.28 - $211.20
    • (0 reviews)
      # sp15417
      Air Inject Check Valve by Genuine®. 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...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $13.06 - $107.28
    • (1 review)
      # sp15419
      Air Pump Hose by Genuine®. 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 the...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $22.65 - $171.70
    • (0 reviews)
      # sp13471
      Air Pump Solenoid Valve by Genuine®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $29.08 - $107.65
    • (0 reviews)
      # sp13472
      Air Pump Control Valve by Genuine®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $2.68 - $348.54
    • (0 reviews)
      # sp15418
      Air Pump Filter by Genuine®. 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 the...
      OE quality fluids from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $35.81 - $42.61
    • (0 reviews)
      # sp12676
      Vacuum Suction Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $16.37
    • (0 reviews)
      # sp26285
      Emission Control by Mann-Filter®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $29.06
    • (0 reviews)
      # sp57132
      Check Valve by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $14.47
    • (0 reviews)
      # sp27953
      Emission System Gasket 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 all...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $1.30 - $30.12
    • (0 reviews)
      # sp27199
      GM Original Equipment Secondary Air Injection Pipe 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.24 - $149.82
    • (0 reviews)
      # sp27200
      GM Original Equipment Secondary Air Injection Pipe Gasket 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $6.66 - $8.58
    • (0 reviews)
      # sp27204
      GM Original Equipment Secondary Air Injection Valve Pipe 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $28.77 - $124.71
    • (0 reviews)
      # sp27170
      GM Original Equipment Adjustable Pedal Relay 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,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $11.35 - $57.94
    • (0 reviews)
      # sp27954
      Emission System Pipe 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 all...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $13.95 - $212.95
    • (0 reviews)
      # sp27957
      Engine Fast Idle Relay by Standard®. Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste your time and gas running out to the auto parts...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $15.16
    • (0 reviews)
      # sp15448
      Cut Off Valve by Genuine®. 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 the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $23.82
    • (0 reviews)
      # sp15420
      Air Pump Rubber Mount by Genuine®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $9.71 - $11.16
    • (0 reviews)
      # sp12672
      Secondary Air Injection Pump Mount by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $2.30 - $19.79
    • (0 reviews)
      # sp12671
      Secondary Air Injection Pump Hose by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $12.29 - $40.97
    • (0 reviews)
      # sp12675
      Vacuum Hose Connector by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it...
      Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation
      $2.64 - $4.62
    • (0 reviews)
      # sp29284
      Urea Filter by WIX®. In order to meet EPA emissions standards many medium and heavy duty truck manufacturers have elected to use selective catalytic reduction technology. This process utilizes a dosing system to inject Urea into...
      Suitable For On-Road and Off-Road UseEnsures superior engine protection
      $82.18
    • (0 reviews)
      # sp25660
      Engine Crankcase Breather Hose by Gates®. Emission Hose is constructed from high quality materials for durability and maximum service life. Replacement hose effectively restores the emission system to proper operation and performance.
      Meets SAE J30R7 specificationsResistant to fuel vapors and oil
      $2.98 - $56.26
    • (0 reviews)
      # sp26536
      Emission Control by MTC®. 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 the auto...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you're located
      $3.24 - $37.58
    • (0 reviews)
      # sp5821
      Secondary Air Injection Pump Hose by Rein®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $14.91 - $26.01
    • (0 reviews)
      # sp5822
      Secondary Air Injection Pump Mount by Rein®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $8.84
    • (1 review)
      # sp13477
      Air Pump Hose by Vaico®. 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 the auto...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $12.66 - $78.61
    • (0 reviews)
      # sp72607
      Secondary Air Injection Pump Idler Pulley by Proform®. With Pulley and Hardware. Allows Removal Of Smog Pump. Sold as One Kit. If you are looking to enhance your vehicle's performance, then this top-notch product is definitely...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $53.40
    • (0 reviews)
      # sp27173
      GM Original Equipment Catalytic Converter Temperature Indicator Relay by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $11.19
    • (0 reviews)
      # sp27202
      GM Original Equipment Secondary Air Injection Relay 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.46 - $27.63
    • (0 reviews)
      # sp27217
      Professional Secondary Air Injection Relay 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.58 - $14.58
    • (0 reviews)
      # sp27216
      Professional Secondary Air Injection Connector 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,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $10.24
    • (0 reviews)
      # sp27188
      GM Original Equipment Emission Control Relay 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,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $7.46 - $21.33
    • (0 reviews)
      # sp27794
      Emission System Relay 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 all...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $15.82 - $171.01




    Featured Brands

    Pressurized air is generated by the air pump and fed into the exhaust system near the exhaust ports (in the cylinder head or the exhaust manifold) and at the catalytic converter, but not at the same time. The air control valve routes air to the head/manifold when the engine is warming up, to reduce emissions from the rich air/fuel mixture needed for a cold engine, and to heat the exhaust to bring the oxygen (O2) sensor and catalytic converter up to temperature sooner. When normal operating temperature is reached, the vacuum switch signals the air control valve to route air to the catalytic converter, where the injected air helps with the oxidation of HC and CO.

    During deceleration, the closed throttle causes a rich air/fuel mixture. If air was injected into this mixture, a potentially component damaging backfire or explosion could result. To prevent this, a vacuum signal directs the diverter valve to route the compressed air to atmosphere during deceleration. The one-way check valves prevent hot exhaust gas from entering and damaging the air pump. These valves are located before the exhaust manifold and before the catalytic converter. When air is supplied to the component behind the valve, the exhaust manifold for example, the valve opens under the air pressure. When air is routed to the catalytic converter, the check valve closes in response to exhaust backpressure.

    Although system diagnostics will vary according to make and model year, certain inspections are universal. Check the hoses and one-way check valves for evidence of burning, which can result in exhaust leaks and exhaust entering the system. On many air pumps, there is a centrifugal filter behind the pulley that can be replaced. Most modern systems will set Diagnostic Trouble Codes (DTCs) in the Engine Control Module (ECM) if there is a problem in the system. If air is not pumped to the head/manifold during warm-up, there will be excessive emissions and reduced fuel economy. Correspondingly, if air is pumped to the head/manifold when the engine is at normal operating temperature, the excess air in the system will be interpreted by the O2 sensor as a lean condition. In response, the ECM will create a rich/air fuel mixture, reducing fuel economy and causing the vehicle to fail an emissions test.

    Related Categories

    Browse by Vehicle

    Reviews

    Average rating:  4.5  4.7 - 8 reviews
    Read All Air Injection Pumps Reviews
    4.3 of 5
    Just Like Ok Part.
    Can't find anything wrong with it. Little difficulty connecting vacuum line on lower side.Would recommend a lift if possible.
    JPosted by Jeffrey (Geneva, NY) / November 4, 2016
    2008 Ford Fusion
    Was this review helpful for you? Yes
    View More
    SECURE SHOPPING

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
    It is neither inferred nor implied that any item sold by CARiD.com, is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.