1997 Audi A4 Emission Control

Change Vehicle
Show items:
Sort by:
Select Engine
  • Select Engine
  • 1.6L
  • 1.8L
  • 1.9L
  • 2.4L
  • 2.5L
  • 2.6L
  • 2.8L
  • Oxygen Sensors
  • PCV & Breathers
  • Vapor Canisters
  • EGR Valves
  • Air Injection Pumps
  • Catalytic Converters
    • (0 reviews)
      # 21026892
      Audi A4 1997, 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
      $53.70 - $78.84
    • (0 reviews)
      # 22132055
      Audi A4 1997, Oxygen Sensor by NTK®. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor element then sends voltage signals back to the...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $60.74 - $86.45
    • (0 reviews)
      # mpn1741925475
      Audi A4 1997, Intermotor™ Vapor Canister 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 manufacturersEach fuel vapor canister is designed and tested to OE specifications for a direct-fit replacement controlling the loss of evaporative emissions from fuel systems to the environment.
      $181.11
    • (0 reviews)
      # 22809369
      Audi A4 1997, 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...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $41.39 - $56.77
    • (0 reviews)
      # mpn8385
      Audi A4 2.8L 1997, Secondary Air Injection Pump by Cardone®. Import. 100% testing of all units guarantees reliable performance every time. High temperature grease extends bearing life, resulting in longer pump life. New carbon...
      50-state emissions street legal100% testing of all units guarantees reliable performance every time.
      $111.03
    • (0 reviews)
      # 710298099
      Audi A4 1997, Universal Fit 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...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $43.71 - $61.06
    • (0 reviews)
      # 24139456
      Audi A4 1997, 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...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $59.15 - $81.12
    • (0 reviews)
      # 24139475
      Audi A4 1997, Universal Fit Oxygen Sensor by Bosch®. Universal Oxygen Sensors with OE SmartLink are quick and easy to install. Each sensor has enough length of sensor wire to allow maximum replacement of worn harnesses. Properly...
      Patented SmartLink™ connector systemNo special tools required for installation
      $41.16 - $55.66
    • (0 reviews)
      # 81757180
      Audi A4 1997, 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...
      OE connectors and wire lengths within 3" of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $61.80 - $80.75
    • (0 reviews)
      # 1060528826
      Audi A4 1997, Oxygen Sensor by Aceon®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
      Designed to provide long-lasting service lifeMade utilizing state-of-the-art equipment
      $22.08 - $26.50
    • (0 reviews)
      # mpn53630438
      Audi A4 / A4 Quattro 1.8L 1997, Intermotor™ PCV Valve by Standard®. No Connector. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $12.30
    • (0 reviews)
      # 939631593
      Audi A4 / A4 Quattro 1997, PCV Valve by Dorman®. Standard Replacement. The PCV Valve is a major component of the PCV System. Designed from high-quality materials for sustained reliability, Dorman's PCV Valve provides a one-way direction...
      Direct replacement for a proper fitSave time and money by replacing failed valve, instead of the entire assembly
      $33.95
    • (0 reviews)
      # mpn1032497395
      Audi A4 / A4 Quattro 1.8L 1997, PCV Valve 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
      $6.40
    • (0 reviews)
      # mpn449442
      Audi A4 / A4 Quattro 1.8L 1997, PCV Valve by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      $10.37
    • (0 reviews)
      # mpn3610113388
      Audi A4 2.8L AHA Engine 1997, Secondary Air Injection Pump by Dorman®. Pulley Not Required. 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...
      Save money by replacing only the failed pump - instead of the entire mating cover assemblyReplacement restores A.I.R. System to proper functioning
      $408.95
    • (0 reviews)
      # 504555902
      Audi A4 1.8L Engine Family # VAD1.8VJGKEM 1997, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port....
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $379.16
    • (0 reviews)
      # 85225706
      Audi A4 2.8L Engine Family # VAD2.8V8GKFM 1997, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Universal Fit. With 1 Inlet. Without Air Tube. Specifically designed to comply with the...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $125.48 - $146.90
    • (0 reviews)
      # 286175728
      Audi A4 / A4 Quattro Base 1.8L 1997, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter...
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $273.95
    • (0 reviews)
      # 286175696
      Audi A4 1.8L 1997, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. The Right converter, the Right choice....
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $70.65 - $87.82
    • (0 reviews)
      # 100278953
      Audi A4 2.8L 1997, Catalytic Converter by Eastern®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 14". Whether your catalytic converter is damaged by road debris or...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $58.55 - $159.23
    • (0 reviews)
      # 286175722
      Audi A4 1997, Catalytic Converter by Eastern®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Catalytic Converter Overall Length: 14". Whether your catalytic converter is damaged by road debris or failed...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $61.56 - $150.96
    • (0 reviews)
      # 81395945
      Audi A4 1997, 608 Series Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Without Air Tube. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2". Three-Way No / Air OBDII By...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $78.67 - $96.81
    • (0 reviews)
      # 842115639
      Audi A4 2.8L AHA Engine Automatic Transmission 1997, Catalytic Converter and Pipe Assembly by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. The growing concern for the environment means...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $354.32 - $355.84
    • (0 reviews)
      # mpn1145252703
      Audi A4 / A4 Quattro 2.8L 1997, Catalytic Converter by AP Exhaust®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $132.11
    • (0 reviews)
      # 842239633
      Audi A4 1.8L 1997, Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $187.27 - $263.24
    • (0 reviews)
      # 88879781
      Audi A4 2.8L 1997, Catalytic Converter and Pipe Assembly by Bosal®. Converter Configuration: Direct Fit. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $249.68 - $337.19
    • (0 reviews)
      # 88879788
      Audi A4 1997, Catalytic Converter by Bosal®. Converter Configuration: Universal Fit. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $79.77 - $202.47
    • (0 reviews)
      # 86067169
      Audi A4 / A4 Quattro 1.8L 1997, Catalytic Converter by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters...
      Direct fitMade from a heavy duty stainless steel outer shell
      $269.89 - $309.88
    • (0 reviews)
      # 86067164
      Audi A4 / A4 Quattro 2.8L 1997, Standard Catalytic Converter and Pipe Assembly by DEC®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With Higher Noble Metal Content. Pick out a catalytic converter by DEC and get your...
      Direct fitMade from a heavy duty stainless steel outer shell
      $327.01
    • (0 reviews)
      # mpn2231258678
      Audi A4 / A4 Quattro Base 1.8L 1997, Catalytic Converter by PaceSetter®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Front Undercar. If you want to get the most out of your vehicle, this PaceSetter product...
      Direct-Fit Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent 16-gauge and stainless steel tubing
      $164.25
    • (0 reviews)
      # 842183632
      Audi A4 / A4 Quattro 1.8L 1997, Catalytic Converter by Davico®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Overall Length: 16.75". This direct-fit catalytic converter by Davico will be a great...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $120.49 - $396.06
    • (0 reviews)
      # 83034850
      Audi A4 / A4 Quattro 2.8L 1997, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $221.79 - $405.18
    • (0 reviews)
      # 898884998
      Audi A4 with PC Weight Class with California Emission 1997, Catalytic Converter by Davico®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Position: Center. This Universal fit catalytic converter by Davico will be a...
      $246.05
    • (0 reviews)
      # mpn2765260632
      Audi A4 / A4 Quattro 1.8L 1997, Standard Grade Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Front. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 17"....
      $365.74
    • (1 review)
      # 98135258
      Audi A4 / A4 Quattro 1997, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With Pre and Post-Cat O2 Sensor Ports. If your car needs replacement, install one that will get you...
      $362.13 - $470.03
    • (0 reviews)
      # 98374711
      Audi A4 / A4 Quattro 1997, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Catalytic Inlet Diameter: 2". Catalytic...
      $100.27 - $110.08
    • (0 reviews)
      # 22199310
      Audi A4 / A4 Quattro 1997, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. With Gasket. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. If your car needs replacement,...
      $470.03 - $587.89
    • (0 reviews)
      # 49708705
      Audi A4 / A4 Quattro 1997, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. OEM Spec. If your car needs a new catalytic converter,...
      $152.37 - $231.40
    • (0 reviews)
      # mpn1125942
      Audi A4 / A4 Quattro 1.8L 1997, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With Gaskets. Catalytic Converter Overall Length: 15.25". If your car needs replacement, install...
      $451.26
    • (0 reviews)
      # mpn1033605
      Audi A4 / A4 Quattro 1.8L 1997, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port....
      $132.23
    • (0 reviews)
      # mpn4489688830
      Audi A4 / A4 Quattro 1.8L 1997, Engine Breather Housing Bleeder Valve by 034Motorsport®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
      $37.98
    • (0 reviews)
      # 45132160
      Audi A4 1997, Intermotor™ Vapor Canister Purge Solenoid 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 manufacturersThe finest quality at a great price
      $23.81 - $291.83
    • (1 review)
      # 83137163
      Audi A4 1997, Vapor Canister Purge Valve by Dorman®. Location: Near Intake Manifold. Dorman's Vapor Canister Purge Valve restores on-board diagnosis of the EVAP system. Plus, its high quality metal and plastic construction keeps the...
      Designed for enduring resistance to harsh road and weather conditionsDirect replacement for a proper fit every time
      $19.74
    • (0 reviews)
      # mpn53630247
      Audi A4 / A4 Quattro 2.8L 1997, Intermotor™ Exhaust Temperature Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $328.72
    • (0 reviews)
      # 458920295
      Audi A4 / A4 Quattro 1997, Intermotor™ 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...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $143.03 - $152.64
    • (0 reviews)
      # 939592623
      Audi A4 2.8L 1997, Secondary Air Injection Check Valve by Dorman®. Keep your vehicle’s emission control system in top-notch condition with superior Dorman replacement emission control parts. Manufactured from top-grade materials using...
      Manufactured from premium grade materialsBuilt to provide exceptional OE quality and function
      $109.63
    • (0 reviews)
      # 354425195
      Audi A4 / A4 Quattro 1997, Emission Check Valve 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...
      High quality plastic and/or steel constructionDirect replacement for a proper fit every time
      $2.69 - $3.29
    • (0 reviews)
      # 69857641
      Audi A4 / A4 Quattro 1997, PCV Valve Hose by Dorman®. Location: Engine Breather Hose. PCV Hoses allows crankcase pressure to escape the engine in a controlled manner. Plus, now with Dorman's PCV Valve Hoses you can replace just the...
      Constructed of high quality materials for long lasting useDirect replacement for a proper fit every time
      $20.34 - $32.17
    • (0 reviews)
      # mpn1032497476
      Audi A4 / A4 Quattro 1.8L 1997, Breather Hose by URO Parts®. Location: Between Breather Assembly And Valve Housing. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $19.31
    • (0 reviews)
      # mpn1032497543
      Audi A4 / A4 Quattro 1.8L 1997, T-Shaped PCV Housing 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...
      High quality plastic and/or steel constructionDirect replacement for a proper fit every time
      $4.57
    • (0 reviews)
      # 588463341
      Audi A4 / A4 Quattro 2.8L 1997, PCV Valve 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...
      High quality at an affordable priceExpertly made from premium materials
      $25.74 - $29.55
    • (0 reviews)
      # mpn1909768970
      Audi A4 DOHC 2.8L 1997, Breather Hose by Meyle®. 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...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $19.70
    • (0 reviews)
      # 706850533
      Audi A4 1997, Breather Hose by Rein®. Air, breather, and vacuum hoses channel air and vapors and make sure your vacuum operated accessories can be properly actuated. Unfortunately, age and exposure to heat and the environment can cause...
      Direct fit, form, and functionEngineered to the highest OE standards
      $4.49 - $21.89
    • (0 reviews)
      # mpn4515244900
      Audi A4 2.8L 1997, Crankcase Ventilation Hose by Febi®. To Intake Ventilation Assembly. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level...
      24 Months/24,000 Miles WarrantyThe finest quality at a great price
      $18.51
    • (0 reviews)
      # 750478440
      Audi A4 / A4 Quattro 1.8L 1997, Bleeder Valve Breather Hose by 034Motorsport®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...
      $17.36 - $20.62
    • (0 reviews)
      # 750477891
      Audi A4 / A4 Quattro 1.8L 1997, Breather Hose Complete Kit by 034Motorsport®. Sold as a complete kit.
      $127.69 - $189.92
    • (0 reviews)
      # mpn4489688853
      Audi A4 / A4 Quattro 1.8L 1997, Valve Housing by 034Motorsport®. Location: Engine Breather Tubes To Bleeder Valve.
      $16.28
    • (0 reviews)
      # 545999298
      Audi A4 1.8L 1997, 3-Bolt Catalytic Converter Gasket 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...
      Makes installation quick and easyOptimal OE-style fit and quality
      $4.05
    • (0 reviews)
      # mpn1590772444
      Audi A4 / A4 Quattro 2.8L AFC Engine 1997, Catalytic Converter Gasket by Victor Reinz®. Flange Type. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High quality at an affordable priceExpertly made from premium materials
      $7.32
    • (0 reviews)
      # mpn1814676622
      Audi A4 / A4 Quattro 1.8L 1997, Catalytic Converter Gasket by AJUSA®. Position: Outlet. If you need durable gaskets to prevent leaks on your vehicle, AJUSA is the way to go. Engineered using the latest technologies and global...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $1.10




    Guides & Articles

    Useful articles fast to read and guides easy to understand written by mechanics and car enthusiasts to turn your shopping experience with CARiD into a pleasure

    • Replacement Emission Control Parts
      August 18, 2014
      Oxygen Sensors - Why Does My Car Have Four, And...
      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...
      by Michael Grayen
    • Ignition Parts
      August 10, 2014
      Auto Parts: Dealer vs. Aftermarket
      The question of whether to buy parts from an automotive dealer vs. ones from aftermarket manufacturers is as age-old as the automobile itself. Below, we'll take a look...
      by Timothy Zahl

    Popular Products




    1997 Audi A4 Models


    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.