1999 Audi A4 Emission Control Parts
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Davico®Universal Fit Catalytic ConverterAudi A4 1999, 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 - Audi OEExhaust System - Exhaust Components (1.8L)Audi A4 Quattro 1.8L 1999, 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$25.33 - $1,256.28
- Audi OEExhaust System - Exhaust Components (Turbocharged 1.8L)Audi A4 Turbocharged 1.8L 1999, 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$25.33 - $1,256.28
- Audi OEExhaust System - Manifold (1.8L)Audi A4 Quattro 1.8L 1999, Exhaust System - Manifold 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$25.33 - $1,256.28
- Audi OEExhaust System - Manifold (Turbocharged 1.8L)Audi A4 Turbocharged 1.8L 1999, Exhaust System - Manifold 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$25.33 - $1,256.28
- CATCO®Select Plus Tech Series OBDII Universal Fit Round Body Catalytic ConverterAudi A4 / A4 Quattro Turbocharged 1.8L with California Emission / Federal Emission 1999, Select Plus Tech Series OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without...$519.60
- Walker®Ultra™ Universal Fit Round Body Catalytic ConverterAudi A4 / A4 Quattro Base Turbocharged 1.8L 1999, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. The Right converter, the Right...$154.12 - $158.81
- AP Exhaust®608 Series Universal Fit Catalytic ConverterAudi A4 1999, 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 2". Three-Way No / Air OBDII by designed US-EPA Compliant...$143.04 - $147.32
- Eastern Catalytic®ECO II Universal Fit Oval Body Catalytic ConverterAudi A4 2.8L 1999, ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Position: Driver Side. Location: Undercar. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port....$157.06
- Eastern Catalytic®ECO II Universal Fit Round Body Catalytic ConverterAudi A4 2.8L 1999, ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Position: Passenger Side. Location: Undercar. Catalytic Converter Body Shape: Round. Without Air Tube. With 1 O2 Sensor Port....$165.80
- 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....$160.09 - $162.91
- 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
- Torxe™Universal Fit Catalytic ConverterUniversal Catalytic Converter by Torxe™. Converter Configuration: Universal Fit. Catalytic Inlet Diameter: 2". Universal Fit Catalytic Converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the...$108.00 - $175.00
- 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
- 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
- Eastern Catalytic®Universal Fit Large Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by road debris...$175.93 - $259.76
- Eastern Catalytic®Universal Fit Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$120.09 - $190.63
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$151.91 - $181.15
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Contains approximately 40% higher precious metal content than most other aftermarket brands. Aristo...$360.90 - $462.25
- Genuine®Crankcase Vent ValveAudi A4 / A4 Quattro 1.8L 1999, 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 from premium...Made with precision and quality in mindDesigned to meet your specific needs$155.32
Shop By Service Type
- Oxygen Sensor Replacement
- Secondary Air Injection Hose Replacement
- Canister Purge Solenoid Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Secondary Air Injection System Air Bypass Valve Replacement
- Air Pump Check Valve Replacement
- Positive Crankcase Ventilation (PCV) Valve Hose Replacement
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1999 Audi A4 Models
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