1998 Audi A8 Emission Control Parts
Select Your Submodel
-
Bosch®Narrow-band Oxygen SensorAudi A8 1998, 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$63.15 - Denso®Oxygen SensorAudi A8 1998, Oxygen 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....High quality plastic and/or steel constructionDirect replacement for a proper fit every time$66.24
- Bosch®Premium Narrow-band Oxygen SensorAudi A8 1998, 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$72.32 - $116.77
- Walker Products®Oxygen SensorAudi A8 1998, 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$53.40 - $74.53
- NTK®Oxygen SensorAudi A8 1998, 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$65.28 - $89.13
- Denso®Universal Fit Oxygen SensorAudi A8 1998, Universal Fit Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under...Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants$82.40 - $82.98
- Dorman®OE Solutions™ Vapor Canister Purge ValveAudi A8 1998, 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$30.11
- Pierburg®Intake System Vacuum SolenoidAudi A8 / A8 Quattro 1998, Intake System Vacuum Solenoid by Pierburg®. "Diesel" and "downsizing" are terms that largely account for the popularity of electropneumatic transducers, a prime mainstay of Pierburg's sales. These are devices...24 Months/24,000 MilesMade to provide unequaled quality and reliability$55.41
- URO Parts®Vapor Canister Purge ValveAudi A8 / A8 Quattro 1998, Vapor Canister Purge 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$21.87
- Genuine®PCV Valve HoseAudi A8 / A8 Quattro 1998, PCV Valve Hose by Genuine®. Location: Between Valve Covers. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and...Made with precision and quality in mindDesigned to meet your specific needs$210.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterAudi A8 3.7L 1998, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". If your car needs replacement, install one that...$621.00 - $667.00
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic ConverterAudi A8 1998, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 13". If your car...$178.00
- MagnaFlow®OBDII Universal Fit Catalytic ConverterAudi A8 with TIER1 Standard 1998, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. If your car needs a new catalytic converter, install one that will get you...$298.00 - $718.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic ConverterAudi A8 Quattro 4.2L 1998, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic...$194.00
- Walker®CalCat™ Universal Fit Standard Oval Body Catalytic ConverterAudi A8 Engine Family # WADXV04.2325 1998, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Standard Oval. With 1 Inlet. Without Air Tube. Without O2 Sensor Port....$463.01 - $698.64
- Davico®Universal Fit Catalytic ConverterAudi A8 1998, 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...$122.58 - $798.58
- 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 - $14.91
- 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 - $11.61
- 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...$105.61 - $188.45
- 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
- AP Exhaust®Medium Duty Universal Fit Oval Body Catalytic ConverterUniversal Medium Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Single Air Tube. With 1 Center O2 Sensor Port. Catalytic Converter Overall Length: 17"....$140.56
- AP Exhaust®Standard Duty Spun Body Universal Fit Round Body Catalytic ConverterUniversal Standard Duty Spun Body Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Today’s exhaust performance market...$101.22 - $250.00
- AP Exhaust®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The...$232.31 - $339.18
Shop By Service Type
Popular Products
1998 Audi A8 Models
Popular Searches