2019 Audi A4 Emission Control Parts
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TRQ®O2 Oxygen SensorAudi A4 / A4 allroad / A4 Quattro 2019, 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...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$39.72 - $64.94$40.95 - $66.95Save 3% - Bosch®OE Connector Oxygen SensorAudi A4 2019, OE Connector 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$67.84 - $94.97
- Walker Products®Oxygen SensorAudi A4 / A4 allroad / A4 Quattro 2019, 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...High quality at an affordable priceExpertly made from premium materials$92.54 - $125.01
- Walker Products®Premium Oxygen SensorAudi A4 2019, Premium Oxygen Sensor by Walker Products®. Position: Downstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test...Improved Engine Response & PerformanceLower Emissions$79.89 - $123.10
- WVE®PCV ValveAudi A4 / A4 allroad 2019, 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$265.02
- Walker Products®Wideband Premium Oxygen SensorAudi A4 / A4 allroad / A4 Quattro 2019, Wideband Premium Oxygen Sensor by Walker Products®. Position: Upstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original...High quality at an affordable priceExpertly made from premium materials$125.35
- 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 A4 allroad 2019, 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$22.28 - $407.27
- Audi OEEmission System - Emission Components (Code CYMC)Audi A4 2019, Emission System - Emission Components (Code CYMC) 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$22.28 - $716.00
- Audi OEEmission System - Emission Components (Code DBPA)Audi A4 2019, Emission System - Emission Components (Code DBPA) 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$22.28 - $716.00
- Vaico®Crankcase Housing CoverAudi A4 2019, Crankcase Housing Cover by Vaico®. Grade: OE. 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....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$119.57
- NTK®Air Fuel Ratio SensorAudi A4 allroad 2019, Air Fuel Ratio Sensor by NTK®. Position: Upstream. Location: B1S1. Air fuel ratio sensors utilize a sophisticated sensing element that enables them to produce a precise output in proportion to the air fuel ratio....Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$118.82
- Beck Arnley®Engine Crankcase Vent ValveAudi A4 / A4 allroad / A4 Quattro 2019, Engine Crankcase Vent Valve by Beck Arnley®. Beck Arnley parts meet foreign nameplate OE specifications for form, fit and function. Beck Arnley products specialists work with a network of global...Matches OE form, fit and functionMade from premium materials$57.58
- Standard®Secondary Air Injection Bypass ValveAudi A4 / A4 allroad / A4 Quattro 2019, 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...Made with precision and quality in mindDesigned to meet your specific needs$151.30
- Vemo®Vapor Canister Purge ValveAudi A4 / A4 allroad / A4 Quattro Premium / Premium Plus / Prestige Germany Built 2019, Vapor Canister Purge Valve by Vemo®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using...High quality at an affordable priceExpertly made from premium materials$55.83
- SKP®PCV Valve DiaphragmAudi A4 / A4 allroad / A4 Quattro 2.0L Gas 2019, PCV Valve Diaphragm 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...Made with precision and quality in mindDesigned to meet your specific needs$18.04
- Davico®Direct Fit Catalytic ConverterAudi A4 allroad 2019, Catalytic Converter by Davico®. Converter Configuration: Direct Fit. Position: Front. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 13.75". This direct-fit catalytic converter by Davico will be a great...$376.51
- Audi OEExhaust System - Exhaust ComponentsAudi A4 allroad 2019, Exhaust System - Exhaust 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$3.12 - $1,251.36
- Audi OEExhaust System - Exhaust Components (Code: CYMC, DBPA)Audi A4 2019, Exhaust System - Exhaust Components (Code: CYMC, DBPA) 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$3.12 - $1,251.36
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. 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...$12.39 - $15.76
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level of quality....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. 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$15.96
- Granatelli Motor Sports®Valve Cover Breather InsertValve Cover Breather Insert by Granatelli Motor Sports®. 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...Made with precision and quality in mindDesigned to meet your specific needs$50.69 - $67.83
- Dorman®OE Solutions™ Oxygen Sensor Bung Repair KitOE Solutions™ Oxygen Sensor Bung Repair Kit by Dorman®. Why replace an exhaust pipe because of a corroded, stripped or damaged oxygen sensor bung? Save the pipe and replace the bung with this weld-on replacement. Standard O2 sensor...Repair-friendly solution - this oxygen sensor bung allows replacement of a damaged fitting without replacing the entire exhaust componentUniversal fitment - designed to accommodate standard oxygen sensor threads$9.61 - $11.35
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$111.92 - $330.87
- Davico®OBDII Universal Fit Catalytic ConverterUniversal OBDII Catalytic Converter by Davico®. Converter Configuration: Universal Fit. This Universal fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat...$115.32 - $765.46
- CATCO®Universal Fit Catalytic ConverterUniversal Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Without Air Tube. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the...$128.47 - $250.13
- AP Exhaust®608 Series Universal Fit Catalytic ConverterUniversal 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is...$104.68 - $415.87
- AP Exhaust®Enhanced Standard Duty Universal Fit Oval Body Catalytic ConverterUniversal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 16". Today’s exhaust...$90.57 - $125.57
