2004 Audi A6 Emission Control Parts
-
TRQ®Oxygen SensorAudi A6 2004, 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$35.95 - $40.95Save: 5%$34.15 - $38.90 - Cardone Reman®Secondary Air Injection PumpAudi A6 2004, 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 for easy installation, while...100% testing of all units guarantees reliable performance every timeHigh temperature grease extends bearing life, resulting in longer pump life$147.48 - $189.92
- Standard®PCV ValveAudi A6 Quattro 3.0L Gas 2004, 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...Made with precision and quality in mindDesigned to meet your specific needs$150.29
- Beck Arnley®PCV ValveAudi A6 Quattro / Allroad Quattro 4.2L 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...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$85.50
- SKP®Secondary Air Injection PumpAudi A6 2004, Secondary Air Injection Pump by SKP®. 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...Made with precision and quality in mindDesigned to meet your specific needs$71.28 - $146.01
- URO Parts®New Secondary Air Injection PumpAudi A6 Quattro 2004, New Secondary Air Injection Pump 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$96.93 - $146.77
- TRQ®Secondary Air Injection PumpAudi A6 Quattro 3.0L Gas Transmission 2004, 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$138.95Save: $6.95 (5%)$132.00
- Dorman®OE Solutions™ Secondary Air Injection PumpAudi A6 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 exact fit adds...Save money by replacing only the failed pump - instead of the entire mating cover assemblyReplacement restores A.I.R. System to proper functioning$290.38 - $313.63
- Vaico®PCV ValveAudi A6 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 meet or...Made with precision and quality in mindDesigned to meet your specific needs$20.70 - $39.45
- Vemo®Secondary Air PumpAudi A6 Quattro Base 4.2L 2004, Secondary Air Pump by Vemo®. Grade: Aftermarket. Vemo products are made by high-quality materials and undergo strict quality tests. They are, thereby, the perfect alternative to the original part.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$350.67
- Genuine®PCV ValveAudi A6 Quattro / Allroad Quattro 2.7L Gas 2004, PCV Valve by Genuine®. Cylinder Block Ventilation. Location: Under Intake Manifold. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed...Made with precision and quality in mindDesigned to meet your specific needs$249.97
- Standard®Intermotor™ PCV ValveAudi A6 / A6 Quattro / Allroad 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...Made with precision and quality in mindDesigned to meet your specific needs$73.31
- 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 (2.7L Gas)Audi A6 Quattro 2.7L Gas 2004, 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$3.39 - $1,112.88
- Audi OEEmission System - Emission Components (2.7L)Audi Allroad Quattro 2.7L 2004, 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$3.39 - $1,112.88
- Audi OEEmission System - Emission Components (3.0L)Audi A6 3.0L 2004, 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$10.15 - $929.91
- Audi OEEmission System - Emission Components (4.2L)Audi A6 Quattro 4.2L 2004, 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$3.39 - $871.62
- Audi OEEmission System - Emission Components (4.2L)Audi Allroad Quattro 4.2L 2004, 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$10.15 - $636.39
- Vemo®Exhaust Control Pressure ConverterAudi A6 Quattro / Allroad Quattro 2.7L Gas 2004, Exhaust Control Pressure Converter 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$103.93
- Bosch®Narrow-band Oxygen SensorAudi A6 2004, 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$50.81
- URO Parts®Engine Crankcase Vent ValveAudi A6 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 exhaust system...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$22.43 - $35.60
- TRQ®O2 Oxygen SensorAudi A6 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 improved...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$35.95Save: 5%$34.15
- Dorman®OE Solutions™ Vapor Canister Purge ValveAudi A6 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 replacement for the original...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$30.06
- Denso®Oxygen SensorAudi A6 2004, 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 - $139.90
- Walker Products®Oxygen SensorAudi A6 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 and deliver...High quality at an affordable priceExpertly made from premium materials$52.18 - $117.86
- Bosch®Premium Narrow-band Oxygen SensorAudi A6 2004, Premium Narrow-band 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...OE Identical ConnectorCompact Design$79.77 - $111.00
- Denso®Air Fuel Ratio SensorAudi A6 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 by Denso....Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies$162.87
- Walker Products®Premium Oxygen SensorAudi A6 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. The oxygen...Improved Engine Response & PerformanceLower Emissions$59.40 - $92.60
- NTK®Oxygen SensorAudi A6 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 signals back to the...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$77.94 - $103.02
- NTK®Air Fuel Ratio SensorAudi A6 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 an exact AFR...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$102.19 - $110.11
Shop By Service Type
Popular Products
2004 Audi A6 Models
Popular Searches