2004 Subaru Impreza Emission Control Parts
-
TRQ®O2 Oxygen SensorSubaru Impreza Outback / RS / TS 2004, 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$40.95 - $56.95Save: up to 5%$38.90 - $55.24 - Dorman®OE Solutions™ Vapor CanisterSubaru Impreza Outback / RS / TS 2004, OE Solutions™ Vapor Canister by Dorman®. This vapor canister has been made to match the original equipment evap canister on certain vehicle years, makes and models, properly restoring emissions...Direct replacement - this evaporative emissions charcoal canister matches the function and performance of the original canister on specified vehiclesRestores performance - properly repairs issues with emissions controls to clear check engine light and pass inspection$220.16
- Standard®T Series PCV ValveSubaru Impreza Outback / RS / TS 2004, T Series PCV Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$12.19
- Beck Arnley®PCV ValveSubaru Impreza Outback / RS / TS 2004, PCV Valve by Beck Arnley®. Make sure your vehicle’s emission control system performs at its optimum level with top-of-the-line Beck Arnley replacement emission control parts. Designed to match OE...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$11.83
- Denso®Oxygen SensorSubaru Impreza 2.5L 2004, 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$74.10
- Walker Products®Oxygen SensorSubaru Impreza EJ251 Engine 2004, 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 2004, 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
- NTK®Oxygen SensorSubaru Impreza 2.5L 2004, 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
- Walker Products®Premium Oxygen SensorSubaru Impreza EJ251 Engine 2004, 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
- Bosch®Narrow-band Oxygen SensorSubaru Impreza 2.5L 2004, 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
- ACDelco®Gold™ PCV ValveSubaru Impreza Outback / RS / TS 2004, Gold™ PCV 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$6.97Save: $1.03 (15%)$5.94
- Denso®Universal Fit Oxygen SensorSubaru Impreza 2.5L 2004, 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
- Bosch®Premium Wideband Oxygen SensorSubaru Impreza 2.5L 2004, 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
- Standard®Intermotor™ Vapor CanisterSubaru Impreza 2004, Intermotor™ Vapor Canister by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...Made with precision and quality in mindDesigned to meet your specific needs$274.71
- Dorman®New Help™ PCV ValveSubaru Impreza EJ251 Engine 2004, New Help™ PCV Valve by Dorman®. Standard Replacement. Keep your vehicle’s emission control system in top-notch condition with superior Dorman replacement emission control parts. Manufactured from...Application specific - components designed to replace original components on certain vehiclesDurable materials - made to resist fluctuating under-hood temperatures to ensure longevity$12.53
- Standard®Intermotor™ PCV ValveSubaru Impreza Outback / RS / TS 2004, Intermotor™ PCV Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$15.84
- WVE®PCV ValveSubaru Impreza 2.5L 2004, PCV Valve by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to minimize emissions of...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$13.24
- Delphi®Oxygen SensorSubaru Impreza Outback / RS / TS EJ251 Engine 2004, 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
- Dorman®OE Solutions™ Vapor Canister Vent ValveSubaru Impreza 2.5L 2004, OE Solutions™ Vapor Canister Vent Valve by Dorman®. A malfunctioning vapor canister vent can cause the engine light to come on. This replacement valve is engineered of quality materials for durability to...Direct replacement - this vapor canister vent valve fits and functions like the original partQuality construction - manufactured from premium materials for a long service life$49.36
- Denso®Air Fuel Ratio SensorSubaru Impreza 2.5L 2004, 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$167.82
- Dorman®OE Solutions™ Vapor Canister Purge ValveSubaru Impreza 2.5L 2004, OE Solutions™ Vapor Canister Purge Valve by Dorman®. Engineered for a perfect fit and plug-and-play installation, this vapor canister purge valve is a direct replacement for the original equipment purge...Direct replacement - this vapor canister purge valve fits and functions like original equipment to ensure proper function of your vehicle's evaporative emissions systemQuality construction - manufactured from premium materials for a long service life$90.81
- Genuine®Vapor Canister FilterSubaru Impreza 2004, Vapor Canister Filter by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials...Made with precision and quality in mindDesigned to meet your specific needs$65.58
- NTK®Air Fuel Ratio SensorSubaru Impreza 2.5L 2004, 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
- Standard®Intermotor™ Vapor Canister Purge SolenoidSubaru Impreza 2.5L 2004, Intermotor™ Vapor Canister Purge Solenoid by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...Made with precision and quality in mindDesigned to meet your specific needs$83.48 - $98.04
- WVE®Vapor Canister Vent SolenoidSubaru Impreza EJ251 Engine 2004, Vapor Canister Vent Solenoid by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$72.70
- WVE®Vapor Canister Purge SolenoidSubaru Impreza 2.5L 2004, Vapor Canister Purge Solenoid by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$117.87
- Walker Products®Premium Air Fuel Ratio SensorSubaru Impreza EJ251 Engine 2004, 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
- Genuine®Oil SeparatorSubaru Impreza 2004, Oil Separator by Genuine®. Location: Rear Of Engine. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from...Made with precision and quality in mindDesigned to meet your specific needs$37.68
- Genuine®EGR Vacuum and Evaporation Pressure Regulator Solenoid ValveSubaru Impreza 2004, EGR Vacuum and Evaporation Pressure Regulator Solenoid Valve by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and...Made with precision and quality in mindDesigned to meet your specific needs$238.10
- Genuine®Secondary Air Injection Check ValveSubaru Impreza 2004, Secondary Air Injection Check Valve by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium...Made with precision and quality in mindDesigned to meet your specific needs$191.33
Shop By Service Type
- EGR Valve Replacement
- Vent Oil Separator Replacement
- Oxygen Sensor Replacement
- Air Pump Check and Diverter Valve Replacement
- Evaporation Vent Solenoid Replacement
- Air Pump Check Valve Replacement
- Canister Purge Solenoid Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Fuel Evaporative Canister Replacement
Popular Products
2004 Subaru Impreza Emission Control Reviews
1 review
Works Great
Dorman® - OE Solutions™ Vapor CanisterPosted by Ken (Liberty Hill, TX) / November 17, 20182007 Subaru Impreza
2004 Subaru Impreza Models
Popular Searches