2003 Subaru Impreza Oxygen Sensors & Components
- TRQ®O2 Oxygen SensorSubaru Impreza Outback / RS / TS 2003, O2 Oxygen Sensor by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$38.90 - $54.67$40.95 - $56.95Save up to 5%
- Denso®Oxygen SensorSubaru Impreza 2.5L 2003, Oxygen Sensor by Denso®. Position: Downstream. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$75.31
- Walker Products®Oxygen SensorSubaru Impreza EJ251 Engine 2003, Oxygen Sensor by Walker Products®. 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...High quality at an affordable priceExpertly made from premium materials$59.80 - $212.11
- Bosch®Premium Narrow-band Oxygen SensorSubaru Impreza 2.5L 2003, Premium Narrow-band Oxygen Sensor by Bosch®. Position: 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...OE Identical ConnectorCompact Design$77.10
- Walker Products®Premium Oxygen SensorSubaru Impreza EJ251 Engine 2003, Premium Oxygen Sensor by Walker Products®. Position: Downstream. Location: B1S2 Sensor. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all...Improved Engine Response & PerformanceLower Emissions$67.34
- Spectra Premium®Oxygen SensorSubaru Impreza 2.5L 2003, 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...Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements$17.74 - $120.46
- NTK®Oxygen SensorSubaru Impreza 2.5L 2003, Oxygen Sensor by NTK®. Position: Downstream. Location: B1S2. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$64.99
- Bosch®Narrow-band Oxygen SensorSubaru Impreza 2.5L 2003, Narrow-band Oxygen Sensor by Bosch®. Position: Downstream. 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...OE-EquivalentOE Style connectors and wire lengths$49.09
- Bosch®Premium Wideband Oxygen SensorSubaru Impreza 2.5L 2003, Premium Wideband Oxygen Sensor by Bosch®. Position: Upstream. This sensor utilizes a sophisticated sensing element enabling it to produce a precise output in proportion to the air/fuel ratio. Wideband sensors...Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor$245.64
- Denso®Universal Fit Oxygen SensorSubaru Impreza 2.5L 2003, Universal Fit Oxygen Sensor by Denso®. Position: Downstream. 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...Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants$50.67
- Delphi®Oxygen SensorSubaru Impreza Outback / RS / TS EJ251 Engine 2003, 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...Resists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long lifePatented sensors construction and design$102.36 - $208.22
- Denso®Air Fuel Ratio SensorSubaru Impreza 2.5L 2003, Air Fuel Ratio Sensor by Denso®. Position: Upstream. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products...Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies$180.67
- NTK®Air Fuel Ratio SensorSubaru Impreza 2.5L 2003, Air Fuel Ratio Sensor by NTK®. Position: Upstream. Location: B1S1. Air fuel ratio sensors utilize a sophisticated sensing element that enables them to produce a precise output in proportion to the air fuel...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$237.30
- Walker Products®Premium Air Fuel Ratio SensorSubaru Impreza EJ251 Engine 2003, Premium Air Fuel Ratio Sensor by Walker Products®. Position: Upstream. Location: B1S1 Sensor. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all...Designed to meet or exceed OE specifications in form, fit and functionGlobal coverage for import and/or domestic applications$189.99
- ReplacementOxygen SensorSubaru Impreza Outback / RS / TS 2003, Oxygen Sensor by Replacement. 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, this product by...Expertly crafted from premium materialsDesigned to match rigorous quality standards$12.00 - $22.64
- Facet®Oxygen SensorSubaru Impreza Outback / RS / TS 2003, Oxygen Sensor by Facet®. Position: Rear. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with...The reliable goods for increase of reliability of the carQuality equal, if not superior, to that of the original components$89.16
- Vemo®Oxygen SensorSubaru Impreza 2.5L 2003, Oxygen Sensor by Vemo®. Location: Post-Catalyst. 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...High quality at an affordable priceExpertly made from premium materials$148.79
- CRS®Air Fuel Ratio SensorSubaru Impreza 2.5L 2003, Air Fuel Ratio Sensor by CRS®. 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...Compliant with the most strict standards for qualityDesigned to comply with the highest quality standards$44.24 - $84.06
- TruParts®Oxygen SensorSubaru Impreza EJ251 Engine 2003, Oxygen Sensor by TruParts®. Position: Downstream. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the finest materials in...Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition$27.17
- Aceon®Oxygen SensorSubaru Impreza 2.5L 2003, Oxygen Sensor by Aceon®. Position: Downstream. 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...Made with precision and quality in mindDesigned to meet your specific needs$24.00
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