2005 Audi A4 Emission Control Parts
Select Your Submodel
-
TRQ®Oxygen SensorAudi A4 2005, Oxygen Sensor by TRQ®. If your oxygen sensor fails, replace it with this top-grade part developed to easily fix the problem. Built to fit and function exactly as the part it is replacing, the product provides excellent OEM...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$31.96 - $39.72$32.95 - $40.95Save 3% - Cardone Reman®Secondary Air Injection PumpAudi A4 / A4 Quattro 1.8L / 3.0L Gas 2005, Secondary Air Injection Pump by Cardone Reman®. Import. Cardone Remanufactured Smog Pumps are engineered for quick installation and no comebacks. These pumps come with all necessary components...100% testing of all units guarantees reliable performance every timeHigh temperature grease extends bearing life, resulting in longer pump life$189.92
- Standard®PCV ValveAudi A4 / A4 Quattro 2005, 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 reputation for integrity to...Made with precision and quality in mindDesigned to meet your specific needs$48.42 - $150.29
- Genuine®Vapor CanisterAudi A4 / A4 Quattro 2005, Vapor Canister 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$191.47 - $784.56
- Beck Arnley®PCV Valve KitAudi A4 / A4 Quattro 2.0L Gas 2005, PCV Valve Kit by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory...OE quality products from top original equipmentTop quality materials$135.17
- Original Equipment®PCV ValveAudi A4 / A4 Quattro 2.0L Gas 2005, PCV Valve by Original Equipment®. Looking for high-quality replacement parts to restore the performance of your vehicle? Then Original Equipment automotive parts are for you. They are manufactured...Perfect replacement for your damaged or worn out original partMade using high-grade materials for long-lasting dependability$84.98
- URO Parts®New Secondary Air Injection PumpAudi A4 2005, New Secondary Air Injection Pump by URO Parts®. Position: Secondary. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$99.44
- TRQ®Secondary Air Injection PumpAudi A4 / A4 Quattro 2005, Secondary Air Injection Pump by TRQ®. If you secondary air injection pump has gone bad, replace it with this top-notch part to keep your vehicle working properly. Engineered for quick and simple installation,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$134.78$138.95Save $4.17 (3%)
- Bosch®Premium Wideband Oxygen SensorAudi A4 2005, 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 use a more...Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor$102.82 - $150.97
- TRQ®O2 Oxygen SensorAudi A4 / A4 Quattro 2005, 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 isostatically-pressed for...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$34.87 - $64.94$35.95 - $66.95Save 3%
- Bosch®Narrow-band Oxygen SensorAudi A4 2005, Narrow-band 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....OE-EquivalentOE Style connectors and wire lengths$42.09 - $50.66
- Dorman®OE Solutions™ Secondary Air Injection PumpAudi A4 / A4 Quattro 1.8L / 3.0L Gas 2005, OE Solutions™ Secondary Air Injection Pump by Dorman®. 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$313.63
- Vaico®PCV ValveAudi A4 2005, PCV Valve by Vaico®. Designed utilizing the latest technology, this product by Vaico features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...Made with precision and quality in mindDesigned to meet your specific needs$35.08 - $95.66
- Denso®Oxygen SensorAudi A4 2005, 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...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$80.76 - $165.96
- Walker Products®Oxygen SensorAudi A4 2005, 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 needs and deliver...High quality at an affordable priceExpertly made from premium materials$52.18 - $117.86
- Bosch®Premium Oxygen SensorAudi A4 2005, 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...OE Identical ConnectorCompact Design$64.64 - $159.13
- Beck Arnley®PCV ValveAudi A4 / A4 Quattro 2005, 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 (original...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$29.06 - $53.32
- NTK®Oxygen SensorAudi A4 2005, 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$77.94 - $119.02
- Walker Products®Premium Oxygen SensorAudi A4 2005, Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. The oxygen...Improved Engine Response & PerformanceLower Emissions$59.40 - $83.54
- Spectra Premium®Oxygen SensorAudi A4 2005, 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$19.32 - $105.55
- Genuine®Crankcase Vent ValveAudi A4 / A4 Quattro 2.0L Gas 2005, Crankcase Vent 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$144.11
- Standard®Intermotor™ PCV ValveAudi A4 / A4 Quattro 2005, 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 reputation for...Made with precision and quality in mindDesigned to meet your specific needs$42.90 - $73.31
- WVE®PCV ValveAudi A4 2005, 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 environmental...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$34.60 - $179.00
- Walker Products®Wideband Premium Oxygen SensorAudi A4 2005, Wideband Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. The...High quality at an affordable priceExpertly made from premium materials$112.13 - $117.73
- Facet®Oxygen SensorAudi A4 2005, Oxygen Sensor by Facet®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...The reliable goods for increase of reliability of the carQuality equal, if not superior, to that of the original components$46.74 - $81.45
- Original (OEM)Emission Control PartsAlong with power, your engine produces carbon monoxide, oxide of nitrogen, hydrocarbons, and other hazardous gases that cause harm to the environment. To minimize air pollution, all vehicles are equipped with an emission control system...
- Audi OEEmission System - Emission Components (1.8L)Audi A4 1.8L 2005, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$3.64 - $1,041.50
- Audi OEEmission System - Emission Components (3.0L)Audi A4 / A4 Quattro 3.0L 2005, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$12.59 - $1,041.50
- Audi OEEmission System - Emission Components (B6 Body Code 1.8L)Audi A4 B6 Body Code 1.8L 2005, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$12.59 - $1,041.50
- Audi OEEmission System - Emission Components (B6 Body Code 3.0L)Audi A4 B6 Body Code 3.0L 2005, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$12.59 - $1,041.50
Shop By Service Type
- Oxygen Sensor Replacement
- Secondary Air Injection System Air Bypass Valve Replacement
- Canister Purge Solenoid Replacement
- Air Pump Check and Diverter Valve Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Air Pump Check Valve Replacement
- Fuel Evaporative Canister Replacement
- Positive Crankcase Ventilation (PCV) Valve Hose Replacement
- Vent Oil Separator Replacement
- Secondary Air Injection Hose Replacement
- Air Injection System Control Valve Replacement
Popular Products
- $16.97
- $157.56 - $917.62
- $24.17 - $27.13
2005 Audi A4 Models
Popular Searches