2002 Audi A4 Emission Control Parts
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TRQ®O2 Oxygen SensorAudi A4 / A4 Quattro 2002, 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: 5%$34.15 - Cardone Reman®Secondary Air Injection PumpAudi A4 / A4 Quattro 2002, 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...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 2002, 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 all channels...Made with precision and quality in mindDesigned to meet your specific needs$46.64 - $150.29
- Beck Arnley®PCV ValveAudi A4 / A4 Quattro 1.8L 2002, 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...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$15.02
- URO Parts®New Secondary Air Injection PumpAudi A4 / A4 Quattro 2002, 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...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$96.93
- TRQ®Secondary Air Injection PumpAudi A4 / A4 Quattro 2002, 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$138.95Save: $6.95 (5%)$132.00
- Dorman®OE Solutions™ Secondary Air Injection PumpAudi A4 / A4 Quattro 1.8L / 3.0L 2002, 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 / A4 Quattro 3.0L 2002, 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...Made with precision and quality in mindDesigned to meet your specific needs$39.45
- Standard®Intermotor™ PCV ValveAudi A4 / A4 Quattro 2002, 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$18.78 - $73.31
- WVE®PCV ValveAudi A4 2002, 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$55.83 - $179.00
- URO Parts®PCV ValveAudi A4 / A4 Quattro 1.8L 2002, PCV 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$9.90
- 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 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$16.61 - $929.91
- Audi OEEmission System - Emission Components (3.0L)Audi A4 3.0L 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$16.61 - $929.91
- Dorman®New OE Solutions™ PCV ValveAudi A4 / A4 Quattro 1.8L 2002, New OE Solutions™ PCV Valve by Dorman®. Standard Replacement. This PCV valve kit includes necessary components for repairing an original equipment PCV valve on certain vehicle applications.Complete kit - this PCV valve kit includes all components needed to repair valve right the first timeApplication specific - components designed to replace original components on certain vehicles$36.62
- SKP®PCV ValveAudi A4 / A4 Quattro 1.8L 2002, PCV Valve by SKP®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...High quality at an affordable priceExpertly made from premium materials$11.05
- Kayser®PCV ValveAudi A4 / A4 Quattro 1.8L 2002, PCV Valve by Kayser®. Location: Check Valve. The production and development of filters for the automotive industry has been a tradition in company. Since 1960 Kayser have been active in this business...High-grade design and construction built to last for yearsPerfect for use in high-speed environments$51.96
- Bosch®Narrow-band Oxygen SensorAudi A4 / A4 Quattro 1.8L / 3.0L 2002, 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...OE-EquivalentOE Style connectors and wire lengths$50.81
- URO Parts®Engine Crankcase Vent ValveAudi A4 / A4 Quattro 2002, 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$10.83 - $35.60
- Dorman®OE Solutions™ Vapor Canister Purge ValveAudi A4 / A4 Quattro 2002, 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...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 A4 / A4 Quattro 1.8L / 3.0L 2002, 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...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$80.76
- Walker Products®Oxygen SensorAudi A4 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$64.75 - $117.86
- Bosch®Premium Narrow-band Oxygen SensorAudi A4 / A4 Quattro 1.8L / 3.0L 2002, 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...OE Identical ConnectorCompact Design$87.03
- Denso®Air Fuel Ratio SensorAudi A4 / A4 Quattro 2002, 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 - $162.87
- Walker Products®Premium Oxygen SensorAudi A4 / A4 Quattro 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....Improved Engine Response & PerformanceLower Emissions$82.14
- NTK®Oxygen SensorAudi A4 / A4 Quattro 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...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$77.94
- NTK®Air Fuel Ratio SensorAudi A4 / A4 Quattro 2002, 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$110.11 - $127.39
- Gates®Engine Crankcase Vent ValveAudi A4 / A4 Quattro 1.8L 2002, 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...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$55.74
- Bosch®Premium Wideband Oxygen SensorAudi A4 / A4 Quattro 2002, 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$84.14 - $131.58
- Vemo®Oxygen SensorAudi A4 2002, 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$63.00 - $250.03
Shop By Service Type
- Oxygen Sensor Replacement
- Air Pump Check Valve Replacement
- Canister Purge Solenoid Replacement
- Positive Crankcase Ventilation (PCV) Valve Hose Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Secondary Air Injection Hose Replacement
- Air Injection System Control Valve Replacement
- Secondary Air Injection System Air Bypass Valve Replacement
- Air Pump Check and Diverter Valve Replacement
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