2004 Audi A8 Emission Control Parts
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TRQ®O2 Oxygen SensorAudi A8 Quattro 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 isostatically-pressed for...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$34.15 - $63.60$35.95 - $66.95Save 5% - Genuine®Vapor CanisterAudi A8 Quattro 2004, 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 using...Made with precision and quality in mindDesigned to meet your specific needs$191.47
- Beck Arnley®PCV ValveAudi A8 Quattro 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 (original...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$90.50
- URO Parts®New Secondary Air Injection PumpAudi A8 Quattro 2004, 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...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$100.91
- Bosch®Premium Wideband Oxygen SensorAudi A8 Quattro 4.2L 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$102.82
- Walker Products®Oxygen SensorAudi A8 Quattro 4.2L 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 needs...High quality at an affordable priceExpertly made from premium materials$68.87 - $116.69
- Bosch®Narrow-band Oxygen SensorAudi A8 Quattro 4.2L 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$50.66
- Vaico®PCV ValveAudi A8 Quattro 2004, 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...Made with precision and quality in mindDesigned to meet your specific needs$20.70
- Denso®Oxygen SensorAudi A8 Quattro 4.2L 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$86.96
- Bosch®Premium Narrow-band Oxygen SensorAudi A8 Quattro 4.2L 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$88.97
- Walker Products®Premium Oxygen SensorAudi A8 Quattro 4.2L 2004, 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....Improved Engine Response & PerformanceLower Emissions$82.14
- NTK®Oxygen SensorAudi A8 Quattro 4.2L 2004, 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...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$87.33 - $98.24
- Standard®Intermotor™ PCV ValveAudi A8 Quattro 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 reputation for...Made with precision and quality in mindDesigned to meet your specific needs$78.90
- Dorman®OE Solutions™ Secondary Air Injection PumpAudi A8 Quattro 4.2L 2004, 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 replacement, the...Save money by replacing only the failed pump - instead of the entire mating cover assemblyReplacement restores A.I.R. System to proper functioning$319.73
- Facet®Oxygen SensorAudi A8 Quattro L 2004, 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...The reliable goods for increase of reliability of the carQuality equal, if not superior, to that of the original components$46.74
- Walker Products®Wideband Premium Oxygen SensorAudi A8 Quattro 4.2L 2004, 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...High quality at an affordable priceExpertly made from premium materials$104.28 - $112.13
- Standard®Intermotor™ Vapor CanisterAudi A8 Quattro 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$392.43
- 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 (Vapor Canister & Sensors), (4.2L)Audi A8 Quattro 4.2L 2004, Emission System - Emission Components (Vapor Canister & Sensors) 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,...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$3.64 - $630.20
- Genuine®Oxygen SensorAudi A8 Quattro 2004, Oxygen Sensor 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 using...Made with precision and quality in mindDesigned to meet your specific needs$32.22
- Walker®Oxygen SensorAudi A8 Quattro 2004, 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...Makes installation quick and easyOptimal OE-style fit and quality$214.37
- Pierburg®Secondary Air Injection PumpAudi A8 Quattro 2004, Secondary Air Injection Pump by Pierburg®. 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...24 Months/24,000 MilesMade to provide unequaled quality and reliability$329.05
- Audi OEEmission System - Emission Components (A.I.R. Pump & Components), (4.2L)Audi A8 Quattro 4.2L 2004, Emission System - Emission Components (A.I.R. Pump & 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,...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$3.64 - $1,041.50
- URO Parts®Engine Crankcase Vent ValveAudi A8 Quattro 2004, Engine Crankcase Vent Valve by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$19.19
- Dorman®OE Solutions™ Vapor Canister Purge ValveAudi A8 Quattro 4.2L / 6.0L 2004, OE Solutions™ Vapor Canister Purge Valve by Dorman®. Location: Near Intake Manifold. Engineered for a perfect fit and plug-and-play installation, this vapor canister purge valve is a direct...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$31.48
- Denso®Air Fuel Ratio SensorAudi A8 Quattro 4.2L 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$135.94
- Standard®Intermotor™ Vapor Canister Purge SolenoidAudi A8 Quattro 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 highest...Made with precision and quality in mindDesigned to meet your specific needs$39.94
- NTK®Air Fuel Ratio SensorAudi A8 Quattro 4.2L 2004, Air Fuel Ratio Sensor by NTK®. Air fuel ratio sensors utilize a sophisticated sensing element that enables them to produce a precise output in proportion to the air fuel ratio. AFR sensors provide the ECU with...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$127.39 - $132.13
- Gates®Engine Crankcase Vent ValveAudi A8 Quattro 4.2L 2004, Engine Crankcase Vent Valve by Gates®. 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...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$141.93
- Vemo®Passenger Side Cylinder Bank Secondary Air Pump System ValveAudi A8 Quattro L 4.2L 2004, Passenger Side Cylinder Bank Secondary Air Pump System Valve by Vemo®. Grade: Aftermarket. Vemo products are made by high-quality materials and undergo strict quality tests. They are, thereby, the perfect...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$172.99
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