2002 Audi S4 Emission Control Parts
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TRQ®Oxygen SensorAudi S4 2002, Oxygen Sensor by TRQ®. Position: Downstream. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$40.95Save: $2.05 (5%)$38.90 - Genuine®PCV ValveAudi S4 2002, PCV 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 materials using state-of-the-art...Made with precision and quality in mindDesigned to meet your specific needs$35.96 - $249.97
- 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 ComponentsAudi S4 2002, 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 want...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$62.61 - $360.07
- Vemo®Exhaust Control Pressure ConverterAudi S4 2002, 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 alternative to the original part.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$103.93
- TRQ®Upstream O2 Oxygen SensorAudi S4 2002, Upstream 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$35.95Save: $1.80 (5%)$34.15
- Bosch®Narrow-band Oxygen SensorAudi S4 2002, 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
- Denso®Oxygen SensorAudi S4 2002, 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$139.90
- Walker Products®Oxygen SensorAudi S4 2002, 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$80.96 - $81.17
- Bosch®Premium Narrow-band Oxygen SensorAudi S4 2002, 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$111.00
- Walker Products®Premium Oxygen SensorAudi S4 2002, 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$92.25 - $92.60
- NTK®Oxygen SensorAudi S4 2002, 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$101.59 - $103.02
- Genuine®Vapor Canister Purge ValveAudi S4 2002, Vapor Canister Purge 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 materials using...Made with precision and quality in mindDesigned to meet your specific needs$198.03
- Delphi®Oxygen SensorAudi S4 2002, 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$115.71 - $148.03
- Vaico®PCV Engine Crankcase Vent ValveAudi S4 Germany Built 2002, PCV Engine Crankcase Vent Valve 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...Designed to provide long-lasting service lifeMade utilizing state-of-the-art equipment$110.64
- Pierburg®Air Pump Check ValveAudi S4 2002, Air Pump Check Valve by Pierburg®. Position: Passenger Side. 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...24 MonthsMade to provide unequaled quality and reliability$88.06
- Standard®Intermotor™ Secondary Air Injection Bypass ValveAudi S4 2002, Intermotor™ Secondary Air Injection Bypass 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$314.16 - $331.79
- Standard®Intermotor™ Secondary Air Injection Pump Check ValveAudi S4 2002, Intermotor™ Secondary Air Injection Pump Check 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$12.12
- Pierburg®EGR Vacuum SolenoidAudi S4 2002, EGR Vacuum Solenoid by Pierburg®. N249. "Diesel" and "downsizing" are terms that largely account for the popularity of electropneumatic transducers, a prime mainstay of Pierburg's sales. These are devices employed either...24 Months/24,000 MilesMade to provide unequaled quality and reliability$56.65
- WVE®Oxygen Sensor RelayAudi S4 2002, Oxygen Sensor Relay 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$5.02
- Vaico®Breather HoseAudi S4 2002, Breather Hose 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...Made with precision and quality in mindDesigned to meet your specific needs$11.11 - $269.73
- Mahle®Secondary Air Injection Pump GasketAudi S4 2002, Secondary Air Injection Pump Gasket by Mahle®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$3.95
- Genuine®EGR Valve Adapter GasketAudi S4 2002, EGR Valve Adapter Gasket 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$18.02
- MagnaFlow®Heavy Metal Universal Fit Oval Body Catalytic ConverterAudi S4 2002, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$222.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic ConverterAudi S4 with TLEV Standard 2002, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 13"....$371.00 - $503.00
- MagnaFlow®OEM Grade Universal Fit Oval Body Catalytic ConverterAudi S4 2002, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$231.00
- Davico®Direct Fit Catalytic Converter and Pipe AssemblyAudi S4 Standard Transmission 2002, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged...$598.78
- MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterAudi S4 2002, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check. This converter will directly...$771.00 - $839.00
- MagnaFlow®OBDII Direct Fit Catalytic ConverterAudi S4 Transmission with TLEV Standard 2002, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. With Gasket. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.25". Catalytic...$1,388.00 - $1,391.00
- Walker®CalCat™ Universal Fit Catalytic ConverterAudi S4 Engine Family # 2ADXV02.7333 2002, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Specifically designed to comply with the California Air...$383.09 - $409.51
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