2006 Subaru WRX Emission Control

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    • Bosch® Premium Oxygen Sensor
      (0 reviews)
      Subaru WRX 2006, Premium Oxygen Sensor by Bosch®. Location: Downstream. 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...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $59.68$47.74
      # 35994372
    • Bosch® Wideband Oxygen Sensor
      (0 reviews)
      Subaru WRX / WRX STI 2006, Wideband Oxygen Sensor by Bosch®. Location: Upstream. Exact Fit. This sensor utilizes a sophisticated sensing element enabling it to produce a precise output in proportion to the air/fuel ratio. The A/F...
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $154.59$123.67
      # 35994389
    • Spectra Premium® Downstream Oxygen Sensor
      (0 reviews)
      Subaru WRX / WRX STI 2006, Downstream 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...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $69.38$55.50
      # 22807971
    • Standard® Oxygen Sensor
      (0 reviews)
      Subaru WRX Base Automatic Transmission 2006, Oxygen Sensor by Standard®, Use 1 per Car. Downstream. 4 Terminals. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $77.18$61.74
      # 44880008
    • Delphi® Oxygen Sensor
      (0 reviews)
      Subaru WRX 2006, Oxygen Sensor by Delphi®. Connector Type: Square-4 Blade. Wrench Size: 7/8". As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and...
      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
      $65.16from $52.13 - $181.06
      # 24591165
    • NTK® Replacement Oxygen Sensor
      (0 reviews)
      Subaru WRX 2006, 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...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $83.30$66.64
      # 22131767
    • Denso® Downstream OE Connector Oxygen Sensor
      (0 reviews)
      Subaru WRX / WRX STI 2006, Downstream OE Connector Oxygen Sensor by Denso®. Heated. 4 Wires, 21.26" / 54.00 cm Length. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems....
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $56.69$45.35
      # 21104200
    • Spectra Premium® Secondary Air Injection Pump Check Valve
      (0 reviews)
      Subaru WRX / WRX STI 2006, Secondary Air Injection Pump Check Valve by Spectra Premium®. Spectra Premium's Secondary Air Pump Control Valves are engineered, developed and validated by our in-house team of Canadian engineers...
      Direct replacement - OE Fit, Form and FunctionManufactured with high quality aluminum to withstand temperature variations
      $208.06$166.45
      # 22862747
    • Standard® Intermotor™ Vapor Canister Purge Solenoid
      (0 reviews)
      Subaru WRX / WRX STI 2006, 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...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      $97.98$78.38
      # 45115678
    • Accel® UEGO Wideband O2 Module
      (0 reviews)
      Universal UEGO Wideband O2 Module by Accel®. No matter what vehicle you own, its ignition system is what helps to achieve the mileage and power you bought it for. Quality ignition system components are a sure way to let your engine...
      $657.91$526.33
      # 12710251
    • Accel® Gen VII™Linear Oxygen Sensor
      (0 reviews)
      Universal Gen VII™Linear Oxygen Sensor by Accel®. No matter what vehicle you own, its ignition system is what helps to achieve the mileage and power you bought it for. Quality ignition system components are a sure way to let your...
      $99.33from $79.46 - $1,052.68
      # 12710299
    • Walker Products Inc.® OE Connector Oxygen Sensor
      (0 reviews)
      Subaru WRX / WRX STI 2006, OE Connector Oxygen Sensor by Walker Products Inc.®. Position: Rear. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of...
      $113.61$90.89
      # 8739924
    • Genuine® Purge Valve
      (0 reviews)
      Subaru WRX / WRX STI 2006, Purge Valve by Genuine®. Note: Located Next to Intake Manifold. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle’s emissions control system is in need of...
      $59.39$47.51
      # 8804939
    • Powerbuilt® 1/2" Dr. 7/8" (22mm) Oxygen Sensor Socket
      (0 reviews)
      1/2" Dr. 7/8" (22mm) Oxygen Sensor Socket by Powerbuilt®. For removing and installing oxygen sensor and vacuum switches. Specially designed 7/8" (22mm) socket features slot for wiring connector pigtail or vacuum nipples. 2-1/2"...
      Made with precision and quality in mindDesigned to meet your specific needs
      $8.04$6.43
      # 16795808
    • Powerbuilt® Oxygen Sensor Socket Kit
      (0 reviews)
      Oxygen Sensor Socket Kit - Kit #51 by Powerbuilt®. For removing and installing oxygen sensor sockets. Special cut-out design on sockets prevents damage to wire leads.
      Made with precision and quality in mindDesigned to meet your specific needs
      $25.38$20.30
      # 16795834
    • Powerbuilt® Specialty Switch Socket Kit
      (0 reviews)
      Specialty Switch Socket Kit - Kit #62 by Powerbuilt®. For removal and installation of hard to reach oxygen sensors, oil pressure switches, oil pressure sending units and thermal sensor switches.
      Made with precision and quality in mindDesigned to meet your specific needs
      $52.13$41.70
      # 16795844
    • Powerbuilt® Master Sensor Socket Kit
      (0 reviews)
      Master Sensor Socket Kit - 7 Pc by Powerbuilt®. Sven piece Master Sensor Socket Kit removes and installs oxygen sensors, oil pressure sending units and vacuum switches equipped with wires or vacuum tubes. The kit includes single...
      Made with precision and quality in mindDesigned to meet your specific needs
      $41.74$33.39
      # 16795870
    • Genuine® PCV Valve
      (0 reviews)
      Subaru WRX STI 2006, PCV Valve by Genuine®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste...
      $32.74$26.19
      # 8801340
    • Genuine® Breather Hose
      (0 reviews)
      Subaru WRX / WRX STI 2006, Breather Hose by Genuine®. Note: Right side Cylinder Head to P.C.V. Pipe. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto...
      $52.99$42.39
      # 44711916
    • Denso® Upstream OE Connector Air Fuel Ratio Sensor
      (0 reviews)
      Subaru WRX / WRX STI 2006, Upstream OE Connector Air Fuel Ratio Sensor by Denso®. 4 Wires, 30.71" Length. The air/fuel ratio sensor sends information to the engine management computer to makes adjustments based on driving...
      Tarnish-proof platinum electrodes provides longer life and maintains accuracyQuick-response planar zircon element can quickly detect oxygen concentration
      $119.74$95.79
      # 21104205

    Guides & Articles
    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...
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