2018 Audi A4 Emission Control Parts
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- Rein®Breather HoseAudi A4 / A4 allroad / A4 Quattro 2.0L Gas 2018, Breather Hose by Rein®. Air, breather, and vacuum hoses channel air and vapors and make sure your vacuum operated accessories can be properly actuated. Unfortunately, age and exposure to...Direct fit, form, and functionEngineered to the highest OE standards$85.17
- HJS®Catalytic Converter GasketAudi A4 / A4 Quattro 2018, Catalytic Converter Gasket by HJS®. Position: Rear. 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$4.75
- Chevrolet Performance®Diesel Exhaust FluidDiesel Exhaust Fluid by Chevrolet Performance®. Sold individually. Diesel Exhaust Fluid (DEF) is a non-flammable fluid consisting of 2/3 purified water and 1/3 ammonia-based urea. DEF is used with diesel engine exhaust systems to reduce...High quality at an affordable priceExpertly made from premium materials$11.27
- Fast®Vapor Canister Purge FittingVapor Canister Purge Fitting by Fast®. 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$12.95 - $18.95
- ReplacementECO GM Universal Fit Catalytic ConverterUniversal ECO GM Catalytic Converter by Replacement. Converter Configuration: Universal Fit. A vehicle's exhaust system is pivotal to both performance and eco-friendliness, silently managing engine noise and controlling emissions....Call for Pricing
- ReplacementECO III Universal Fit Catalytic ConverterUniversal ECO III Catalytic Converter by Replacement. Converter Configuration: Universal Fit. A vehicle's exhaust system is pivotal to both performance and eco-friendliness, silently managing engine noise and controlling emissions....Call for Pricing
- ReplacementStandard Universal Fit Large Round Body Catalytic ConverterUniversal Standard Catalytic Converter by Replacement. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Round. Catalytic Converter Overall Length: 24". A vehicle's exhaust system is pivotal to both...Call for Pricing
- ReplacementUniversal Fit Catalytic ConverterUniversal Catalytic Converter by Replacement. Converter Configuration: Universal Fit. A vehicle's exhaust system is pivotal to both performance and eco-friendliness, silently managing engine noise and controlling emissions. Replacement...Call for Pricing