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Your auto will meet clean air regulations only if all parts of the emission control system work properly. Do not wait until your Scion fails an emissions test to replace its faulty components. The reliable way to keep this system in excellent condition is to inspect it at specific mileage intervals. If you replace faulty emission control parts in time, you can be sure your Scion meets stringent pollution standards. Put your Scion’s emission control system back at peak performance levels with quality auto parts that can be effortlessly found here.

We have launched our online store to provide customers with durable auto components at prices that make sense. So if you've been surfing the Net in search of high-quality vapor canisters, oxygen sensors, or any other components made of high-grade materials, look no further and scroll through our online catalog. If you want to purchase the needed replacement parts as soon as possible, make an order right now and we will deliver it to you in almost no flat. If you need assistance in choosing the right Scion replacement emission control parts, contact our skilled experts via phone, live chat, or email.

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    • (1 review)
      # sp27974
      Oxygen Sensor 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 channels...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $11.36 - $194.89
    • (3 reviews)
      # sp94914
      Air Fuel Ratio Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $35.04 - $393.18
    • (11 reviews)
      # sp99082
      OE Connector 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,...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $10.69 - $512.39
    • (0 reviews)
      # sp107209
      Oxygen Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of the...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $20.11 - $363.90
    • (0 reviews)
      # sp107192
      Air Fuel Ratio Sensor by Bosch®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $74.39 - $233.89
    • (1 review)
      # sp99083
      Oxygen Sensor by Bosch®. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is...
      OE-EquivalentOE Style connectors and wire lengths
      $8.57 - $146.47
    • (0 reviews)
      # sp110090
      Universal O2 Sensor by Bosch®. 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 meet your needs and deliver great quality...
      High quality at an affordable priceExpertly made from premium materials
      $12.86 - $103.79
    • (1 review)
      # sp92988
      Wideband Oxygen Sensor by Bosch®. Invented for life, Bosch car parts are a rare combination of high quality, dependable service, and a reasonable price. This sensor utilizes a sophisticated sensing element enabling it to produce a...
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $42.30 - $304.36
    • (0 reviews)
      # sp27211
      Professional™ Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen Sensors help. You can...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Customers can receive better gas mileage with a properly working oxygen sensor.
      $18.36 - $241.79
    • (0 reviews)
      # sp5156
      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 tested...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $12.37 - $263.78
    • (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...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $12.24 - $201.38
    • (3 reviews)
      # sp99297
      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
      $9.71 - $272.38
    • (0 reviews)
      # sp26976
      Oxygen Sensor 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, you get...
      Makes installation quick and easyOptimal OE-style fit and quality
      $25.52 - $289.24
    • (2 reviews)
      # sp13483
      Intermotor™ PCV 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 manufacturersThe finest quality at a great price
      $1.38 - $141.56
    • (0 reviews)
      # sp109222
      GM Original Equipment™ PCV Valve Kit 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
      $3.00 - $71.02
    • (2 reviews)
      # sp107260
      PCV Valve by Genuine®. 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 meet your needs and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $5.56 - $327.70
    • (0 reviews)
      # sp13380
      Baffled Oil Catch Can by Mishimoto®. The Mishimoto Baffled Oil Catch Can is the most advanced oil catch can on the market. Every turbo system deserves to be complemented by a proper oil catch can setup, also known as an air oil...
      Allows baffled catch can to be drained without removing it from vehicleNylon barbed mini ball valve can be spliced into rubber hose for ease of draining
      +4
      $157.50 - $397.50
    • (1 review)
      # sp107292
      Oil Catch Can by Moroso®. 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 meet your needs and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $139.14 - $375.02
    • (0 reviews)
      # sp4446
      PCV Valve by FRAM®. The Positive Crankcase Ventilation (PCV) system prevents the release of harmful emissions, helps keep engine oil clean and prevents excessive crankcase pressure, which can cause oil leaks. Maintain peak PCV...
      Essential component of the PCV systemRegulates flow of crankcase vapors into the engine
      $1.31 - $8.60
    • (0 reviews)
      # sp6407
      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 1950’s, brand understands...
      OE quality products from top original equipmentTop quality materials
      $2.02 - $95.22
    • (0 reviews)
      # sp96743
      PCV Valve by Novo®. 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 manufacturersThe finest quality at a great price
      $1.03 - $21.51
    • (0 reviews)
      # sp22004
      Catch Can Kit by Radium®. 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 meet your needs and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $189.95 - $427.45
    • (3 reviews)
      # sp107310
      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 integrity...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $18.53 - $720.36
    • (1 review)
      # sp13479
      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 integrity to all...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $12.66 - $391.18
    • (1 review)
      # sp107229
      Vapor Canister 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.
      Designed for enduring resistance to harsh road and weather conditionsDirect replacement for a proper fit every time
      $37.22 - $449.50
    • (0 reviews)
      # sp107273
      Vapor Canister by Genuine®. 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 meet your needs and deliver great quality at...
      High quality at an affordable priceExpertly made from premium materials
      $46.37 - $971.37
    • (19 reviews)
      # sp4303
      Direct Fit Catalytic Converter by Walker®. 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,...
      Flange to flange, direct fit design bolts to existing exhaustEPA & CARB Emissions Products Available for Most Vehicles
      $70.99 - $849.62
    • (18 reviews)
      # sp10058
      Ultra™ Direct-Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust...
      5 Year / 50,000 Miles Warranty on Structural Components5 Year / 50,000 Miles Warranty on Exhaust Emission (CARB Models)
      $81.39 - $858.93
    • (1 review)
      # sp10059
      Ultra™ Universal Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers....
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $50.42 - $112.39
    • (4 reviews)
      # sp4304
      Universal Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust...
      EPA & CARB Emissions Products Available for Most VehiclesEmission, Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $50.42 - $200.07
    • (14 reviews)
      # sp4294
      Direct Fit Catalytic Converter by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $35.11 - $1,108.38
    • (7 reviews)
      # sp106571
      ECO II Universal Fit Undercar Catalytic Converter by Eastern®. Focused on manufacturing only top-grade emission control products, Eastern Catalytic will perfectly serve your purpose if you opt for a high quality catalytic...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $32.91 - $265.49
    • (0 reviews)
      # sp4295
      Universal Fit Catalytic Converter by Eastern Catalytic®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this product is the way to go. Made of...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $32.91 - $265.49
    • (0 reviews)
      # sp93964
      Direct Fit Catalytic Converter by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic convert systems can be found in a vast array of...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $37.10 - $1,001.87
    • (0 reviews)
      # sp94077
      Universal Fit Catalytic Converter by AP Exhaust®. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and CO, and very efficient at the reduction of NOx, storing O2, and...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $48.83 - $360.70
    • (12 reviews)
      # sp4602
      Catalytic Converter by Bosal®. Bosal has a comprehensive range of more than 1,000 petrol and diesel catalytic converters, including the latest Euro 4 type-approved units. Manufactured in TUV-certified plants using the latest...
      Ensures an even distribution of the gas flow in the converter to deliver optimized conversion of harmful gasesConcepts-enhance the reduction of emissions and ensure a high durability
      $55.21 - $855.84
    • (8 reviews)
      # sp92788
      Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty stainless steel outer shell...
      Direct fitMade from a heavy duty stainless steel outer shell
      $84.25 - $1,297.32
    • (8 reviews)
      # sp13664
      Direct Fit Catalytic Converter by Davico®. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $30.02 - $1,639.28
    • (2 reviews)
      # sp95244
      Exhaust Manifold With Integrated Catalytic Converters by Dorman®. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      $172.29 - $998.43
    • (0 reviews)
      # sp106310
      CalCat™ Exhaust Manifold with Integrated Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate...
      Constructed to meet your vehicle’s specific emissions requirementsDirect fit design
      $156.80 - $804.87
    • (25 reviews)
      # sp4409
      Exhaust 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 choose Walker accessories, you...
      Makes installation quick and easyOptimal OE-style fit and quality
      $1.03 - $199.00
    • (0 reviews)
      # sp104163
      Heavy Duty U-Bolt Clamp 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...
      Makes installation quick and easyOptimal OE-style fit and quality
      $0.91 - $208.50
    • (0 reviews)
      # sp106550
      ECO CARB Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this manifold with...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $234.32 - $802.94
    • (0 reviews)
      # sp106557
      ECO II Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $228.09 - $703.21
    • (1 review)
      # sp106558
      ECO III Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle, this...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $212.20 - $646.59
    • (0 reviews)
      # sp109872
      Direct Fit Catalytic Converter with Integarted Exahust Manifold by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic convert systems...
      5-year / 50,000-mile warranty on converterSpecifically engineered for Manifold Converter equipped vehicles.
      $177.89 - $732.00
    • (0 reviews)
      # sp103492
      Stainless Steel Exhaust Manifold with Integrated Federal Catalytic Converter by AP Exhaust®. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. Catalytic Converter Overall Length: 17.75""....
      5-year / 50,000-mile warranty on converterSpecifically engineered for Manifold Converter equipped vehicles.
      $198.49 - $732.00
    • (2 reviews)
      # sp20037
      Manifold with Integrated Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. Catalytic Series: Premium Load. CARB Compliant: No. If you’re in need of a replacement catalytic converter, you can’t do better than...
      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
      $175.90 - $552.31
    • (0 reviews)
      # sp9246
      Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty...
      Direct fitMade from a heavy duty stainless steel outer shell
      $227.05 - $1,126.69
    • (0 reviews)
      # sp107600
      Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $157.57 - $635.10
    • (0 reviews)
      # sp104146
      Exhaust Manifold with Integrated Catalytic Converter by ATP®. ATP Graywerks Exhaust Manifold-Converters provide a tested and proven solution to repair vehicles with increased emissions or check engine lights due to catalytic...
      Engineered as direct OE replacement ensuring manifold will line up and flow like the original unitHigh grade steel and precious metals resist fatigue and provide long lasting reliable catalyst performance
      $146.05 - $1,010.13
    • (44 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with little or...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $79.39 - $1,748.68
    • (9 reviews)
      # sp96181
      Direct Fit OEM Grade Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust header/manifold...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $148.97 - $3,460.20
    • (3 reviews)
      # sp96188
      Universal Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This universal fit converter will require some fabrication to be...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $69.27 - $466.66
    • (0 reviews)
      # sp105124
      Standard Grade Catalytic Converter by Flowmaster®. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically designed to meet or exceed OEM specifications for exact fit and performance, and are...
      Made of High Quality Stainless SteelImprove Torque and Throttle Response
      $160.80 - $1,066.25
    • (1 review)
      # sp109884
      Direct Fit Federal Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $376.27 - $1,022.71
    • (4 reviews)
      # sp96182
      Direct Fit OEM Grade Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $285.10 - $1,040.56
    • (0 reviews)
      # sp109886
      Heavy Metal Federal Catalytic Converter with Header (Shipping Restrictions) by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $238.99 - $796.77
    • (0 reviews)
      # sp3680
      Catalytic Converter Delete Pipe by DC Sports®. DC Sports competition pipes delete the catalytic to eliminate restriction in the exhaust path and are dyno tuned to deliver incredible performance gains for your factory turbocharged...
      Gives your vehicle a serious performance boostPrecision engineered for your vehicle
      $143.29 - $334.27
    • (0 reviews)
      # sp98116
      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 reputation...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $16.26 - $244.13




    Guides & Articles

    • 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...

    Popular Products



    Scion Emission Control Parts Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Fine Product
    It really fixed my problem and easy to install! Thank you.
    FPosted by Felix (San Jose, CA) / October 19, 2016
    2007 Scion tC
    Was this review helpful for you? Yes

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