2009 Audi A4 Emission Control Parts
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TRQ®Oxygen SensorAudi A4 2009, 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 - $60.09$32.95 - $61.95Save 3% - Standard®PCV ValveAudi A4 Quattro 2.0L 2009, 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$48.50
- Beck Arnley®PCV ValveAudi A4 2009, 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 equipment)...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$56.31 - $116.20
- Bosch®Premium Wideband Oxygen SensorAudi A4 2009, 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$130.38 - $150.97
- TRQ®O2 Oxygen SensorAudi A4 2009, 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$29.71 - $64.94$30.95 - $66.95Save up to 4%
- Bosch®Narrow-band Oxygen SensorAudi A4 2009, 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 Quattro 3.2L 2009, 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$309.28
- Vaico®PCV Valve without DiaphramAudi A4 / A4 Quattro 2.0L BWT Engine Gas with ULEV 2 Engine 2009, PCV Valve without Diaphram by Vaico®. Pressure Regulating Valve. Designed utilizing the latest technology, this product by Vaico features premium quality and will...Made with precision and quality in mindDesigned to meet your specific needs$71.64
- Denso®Oxygen SensorAudi A4 2009, 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$103.52 - $149.73
- Walker Products®Oxygen SensorAudi A4 2009, 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$59.62 - $117.73
- Bosch®Premium Narrow-band Oxygen SensorAudi A4 2009, 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$64.64 - $159.13
- NTK®Oxygen SensorAudi A4 2009, 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$93.69 - $119.02
- Walker Products®Premium Oxygen SensorAudi A4 2009, 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$68.44 - $83.54
- Genuine®Crankcase Vent ValveAudi A4 / A4 Quattro 2.0L BWT Engine Gas 2009, 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...Made with precision and quality in mindDesigned to meet your specific needs$144.11
- WVE®PCV ValveAudi A4 / A4 Quattro 2.0L BWT Engine Gas 2009, 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$40.96
- WVE®Vapor CanisterAudi A4 2009, Vapor Canister 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$734.50 - $805.62
- Walker Products®Wideband Premium Oxygen SensorAudi A4 2009, 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$108.23 - $117.73
- Facet®Oxygen SensorAudi A4 2009, 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$51.74 - $81.45
- Standard®Intermotor™ Vapor CanisterAudi A4 2009, 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$358.04 - $429.68
- 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 (2.0L)Audi A4 2.0L 2009, 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$16.84 - $502.15
- Audi OEEmission System - Emission Components (3.2L)Audi A4 Quattro 3.2L 2009, 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$16.84 - $502.15
- Vemo®Oxygen SensorAudi A4 2009, Oxygen Sensor by Vemo®. 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 great...High quality at an affordable priceExpertly made from premium materials$86.12 - $536.92
- Walker®Oxygen SensorAudi A4 2.0L CAEB Engine 2009, Oxygen Sensor by Walker®. Position: Downstream. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust...Makes installation quick and easyOptimal OE-style fit and quality$118.93
- Delphi®Oxygen SensorAudi A4 2.0L 2009, 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 partnering together to develop the most...Resists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long lifePatented sensors construction and design$125.23 - $144.55
- Vaico®Crankcase Breather Oil TrapAudi A4 2009, Crankcase Breather Oil Trap by Vaico®. Quality results from the consistent pursuit of a customer-focused strategy. Clients wishes are in the center of business. Vaico aim: the best quality for your satisfaction. As a...Designed to provide long-lasting service lifeMade utilizing state-of-the-art equipment$91.61 - $180.38
- Beck Arnley®PCV Valve KitAudi A4 / A4 Quattro Cabriolet 2.0L 2009, 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$160.61
- Vemo®EGR System Gasket SetAudi A4 2.0L 2009, EGR System Gasket Set 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$66.85 - $114.67
- URO Parts®New Engine Crankcase Vent ValveAudi A4 Quattro 3.2L 2009, New 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...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$124.73
- Dorman®OE Solutions™ Vapor Canister Purge ValveAudi A4 2009, 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
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