Exhaust & Emission Systems for 2004 Audi A4
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5,791 Results
1x Secondary Air Injection Pump For 2000-2004 Audi A4 06A959253B (Fits: More than one vehicle)
Brand New$37.59Top Rated Plus- Sellers with highest buyer ratings
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Free shipping2002-2004 AUDI A4 Quattro 3.0L Catalytic Converter Auto Trans. 2 PIECES PAIR (Fits: 2004 Audi A4 Quattro)
Brand New$275.95$19.95 shipping12 watchingCatalytic Converter for Audi A4 2001 2002 2003 2004 Turbo 1.8L L4 GAS DOHC (Fits: More than one vehicle)
Brand New$122.08Was: $128.50or Best OfferFree shippingCatalytic Converter for Audi A4 2001-2004 Turbo 1.8L L4 GAS DOHC (Fits: More than one vehicle)
Brand New$100.22Was: $105.50or Best OfferFree shippingStainless Front Flex pipe fits 2004-2005 Audi A4 Quattro 1.8L Manual Tranmission (Fits: 2004 Audi A4 Quattro)
Brand New$84.74Free shippingBOSCH Vapor Canister Purge Valve Emission 0280142353 For AUDI A4 A6 TT VW Golf (Fits: More than one vehicle)
Brand New: Bosch$23.85Was: $26.50or Best OfferFree shippingOnly 1 left!Catalytic Converter W/Gaskets FOR Audi A4 Quattro VW Passat 1.8L L4 Turbo Only (Fits: More than one vehicle)
Brand New$61.89or Best OfferFree shipping74 soldOEM Vapor Canister Purge Valve Emission 6QE906517A For VW GOLF AUDI A4 S4 (Fits: More than one vehicle)
Brand New: OEM$26.40Was: $29.33or Best OfferFree shippingOnly 1 left!Air Smog Pump Audi A4 A6 A8 Touareg VW Passat Jetta GTI Beetle - 06A 959 253 B (Fits: More than one vehicle)
Pre-Owned: Volkswagen$39.99Free shippingTurbo Manifold fits 1997-2005 Audi A4/A4 Quattro Base Sedan 4D 1.8L I4 (Fits: More than one vehicle)
Brand New: EMUSA$99.99Free shipping36 soldFront Flext pipe fits: 2002-2005 Audi A4 Quattro 1.8L (Fits: 2004 Audi A4 Quattro)
Brand New$89.74Free shippingOnly 1 left!Secondary Elbow Air Pump Hose Connect Pipe For Audi A4 VW Passat 1.8L 058133785B (Fits: More than one vehicle)
Brand New$9.99or Best OfferFree shippingCatalytic Converter for Audi A4 2001 2002 2003 2004 Turbo 1.8L L4 GAS DOHC (Fits: More than one vehicle)
Brand New$102.50Was: $138.50or Best OfferFree shippingCatalytic Converter for 2004 Audi A4 Quattro Turbo 1.8L L4 GAS DOHC (Fits: 2004 Audi A4 Quattro)
US Convertors PN# 514019-EO FREE SHIPPING/EPA CompliantBrand New$165.00Free shippingCatalytic Converter for 2003-2004 Audi A4 Turbo 1.8L L4 GAS DOHC (Fits: 2004 Audi A4)
US Convertors PN# 514019-DI FREE SHIPPING/EPA CompliantBrand New$165.00Free shippingVapor Canister Purge Valve For VW Jetta GOlf Audi A4 A6 A8 1C0906517A 0280142353 (Fits: More than one vehicle)
Brand New: Unbranded$15.99Free shippingNew ListingFor AUDI A4 A6 (2002-2006) Catalytic Converter Gasket ELRING KLINGER + WARRANTY (Fits: More than one vehicle)
Brand New: Elring$25.70Top Rated Plus- Sellers with highest buyer ratings
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Free shippingSecondary Air Injection Pump Fits Audi A4 A6 A8 Q7 VW Jetta Golf Passat Beetle (Fits: More than one vehicle)
Brand New: TOPAZ$42.64Was: $44.88or Best OfferFree shippingSECONDARY AIR INJECTION SMOG PUMP AUDI A4 A6 A8 Q7 TT VW BEETLE CABRIO GOLF OEM (Fits: More than one vehicle)
Pre-Owned: Audi$31.99$11.30 shipping2004 Audi A4 Non Quattro Convertible Cabriolet 3.0 Air Injection Pump 078906601G
Looking for quantity or color? Our eBay store has more!Pre-Owned: Audi$24.99Top Rated Plus- Sellers with highest buyer ratings
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Free shippingSecondary Air Injection Pump Fits For 1999-2012 Audi A4 A6 A8 Q7 TT 06A959253A (Fits: More than one vehicle)
Brand New$41.89$4.99 shipping2x Air Fuel Ratio Oxygen Sensor Up+Down fit 2001-2005 Audi A4 TT A4 Quattro 1.8L (Fits: More than one vehicle)
Brand New$45.69Top Rated Plus- Sellers with highest buyer ratings
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Free shippingOnly 1 left!Secondary Air Injection Smog Pump For Audi A4 A6 A8 Quattro Volkswagen Passat (Fits: More than one vehicle)
Brand New$42.09Free shippingSUCTION PUMP / VACUUM VALVE - AUDI 100 A4 A6 A8 RS6 VW BEETLE GOLF JETTA PASSAT (Fits: More than one vehicle)
Pre-Owned: Audi$11.99Free shipping1996-2013 AUDI A4 - LEAK Detection PUMP Angled HOSE 026133784G (Fits: More than one vehicle)
Pre-Owned: Audi$16.99Free shippingOEM Audi A4 B6 02-06 Touareg Golf Smog Secondary Air Injection Pump 06A959253B (Fits: 2004 Audi A4)
Pre-Owned: Audi$32.99or Best OfferFree shippingCatalytic Converter for 2001-2004 Audi A4 Turbo 1.8L L4 GAS DOHC (Fits: 2004 Audi A4)
US Convertors PN# 514019-DC FREE SHIPPING/EPA CompliantBrand New$165.00Free shippingCenter Catalytic Converter for 2003-2004 Audi A4 Quattro Turbo 1.8L L4 GAS DOHC (Fits: 2004 Audi A4 Quattro)
US Convertors PN# 514019-EN FREE SHIPPING/EPA CompliantBrand New$165.00Free shipping2002-2005 Audi A4 Quattro 3.0L Catalytic Converter Manual Trans. 2 PIECES PAIR (Fits: 2004 Audi A4 Quattro)
Brand New$279.95$19.95 shipping14 soldCatalytic Converter Fits 2002-2004 Audi A4 3.0L V6 GAS DOHC
USC PN# 916225-PM - Fits - SHIPS FREE!!Brand New$148.75Was: $175.00Free shippingEP014 For Audi A4 A6 A8 Q7 TT VW Beetle Auxiliary Secondary Air Injection Pump (Fits: More than one vehicle)
Brand New: King$58.30Free shippingValeo Vapor Canister Purge Valve OE# 1C0906517A For VW GOLF AUDI A4 TT 1.8T 2.0T (Fits: More than one vehicle)
Brand New: Unbranded$15.19Was: $15.99or Best OfferFree shippingSecondary Air Injection Pump Fit For AUDI A4 A6 A8 Q7 VW Jetta Beetle Passat (Fits: More than one vehicle)
Brand New$41.99Top Rated Plus- Sellers with highest buyer ratings
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Free shippingOnly 3 leftLambda Oxygen Sensor O2 For AUDI A4 A6 Allroad TT 021906262C OE GENUINE (Fits: More than one vehicle)
New (Other): Bosch$39.25Top Rated Plus- Sellers with highest buyer ratings
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Was: $41.42Free shipping32 soldN/A Catalytic Converter for 2001-2004 Audi A4 Turbo 1.8L L4 GAS DOHC (Fits: 2004 Audi A4)
US Convertors PN# 514019-DD FREE SHIPPING/EPA CompliantBrand New$165.00Free shipping2002-2004 AUDI A4 Quattro 3.0L Catalytic Converter Auto Trans. Driver Side (Fits: 2004 Audi A4 Quattro)
Brand New$149.95$19.95 shippingSmog Secondary Air Pump Hose & Rubber Mount For VW Golf Jetta Beetle Audi A3 A4 (Fits: 2004 Audi A4)
Brand New: Volkswagen$10.42Was: $11.09or Best OfferFree shipping25 watchingAir Pump Check EGR Valve Pipe Assembly For VW Passat B5 AUDI A4 1.8T 06B131101H (Fits: More than one vehicle)
Brand New: Unbranded$54.69or Best OfferFree shippingOnly 1 left!Exhaust Muffler for 2004-2005 Audi A4 Quattro Base 3.0L V6 GAS DOHC (Fits: 2004 Audi A4 Quattro)
ANSA Part No. AU21105-AQ !!! BUY FROM THE BEST !!!Brand New: Ansa$416.18Free shippingFor 2002-2006 Audi A4 Quattro Muffler Center API 75721QJ 2003 2004 2005 3.0L V6 (Fits: 2004 Audi A4 Quattro)
Brand New: API$175.95Free shippingOnly 2 left2002 2003 2004 Audi A4 BANK1 & BANK2 Catalytic Converters 3.0L Quattro Manual (Fits: 2004 Audi A4 Quattro)
Brand New$275.11$38.00 shippingNEW SMOG AIR PUMP SECONDARY AIR PUMP 06A959253B FOR AUDI A4 A6 A8 Q7 VW Beetle (Fits: More than one vehicle)
US FREE SHIPPING & ONE YEAR WARRANTYBrand New: New Generation$42.99or Best OfferFree shipping1C0906517A BOSCH Vapor Canister Purge Valve Jetta For VW Golf AUDI A6 TT 3.0L (Fits: More than one vehicle)
Brand New: Bosch$23.11Was: $25.68or Best OfferFree shippingOnly 1 left!Air Inject Check Valves Driver Side For 2002-2006 Audi A4 A6 Quattro 06C131101E (Fits: More than one vehicle)
Hassle Free Returns. Free Fast Shipping.Brand New: Perfect Fit$7.20Free shipping2001 2002 2003 2004 Audi A4 VW 1.8L Turbo OEM EGR Valve Air Pump 06B131817E
Pre-Owned: OEM$45.00Free shipping3 watchingEGR Vacuum Solenoid Valve 037906283C For Audi A4 A6 Quattro Beetle Passat (Fits: More than one vehicle)
Brand New$13.25Top Rated Plus- Sellers with highest buyer ratings
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or Best OfferFree shipping2004-2006 Audi A4 Quattro 3.0L Secondary Air Valve W/ Hoses. (2173A)
Pre-Owned: Audi$30.00or Best Offer$5.00 shipping234-4874 O2 Oxygen Sensor for VW Beetle Phaeton Passat Jetta Golf Audi A4 S4 A6 (Fits: More than one vehicle)
Brand New$28.89Top Rated Plus- Sellers with highest buyer ratings
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or Best OfferFree shipping3 watchingNEW OEM Audi VW Vacuum Air Pump Check Valve A4 TT Passat 1.8T 058905291 K/D (Fits: More than one vehicle)
Brand New: Audi$7.97Was: $15.35Free shipping68 soldBOSCH Vapor Solenoid Canister Purge Valve For VW Jetta Golf Passat Audi A3 A4 A6 (Fits: More than one vehicle)
Brand New: Volkswagen$17.57Was: $18.69or Best OfferFree shipping77 soldCrankcase Vent Valve for Audi A4 Quattro A6 2002-2004 (Fits: More than one vehicle)
Lifetime Warranty. Free Shipping and ReturnsBrand New: Martins$9.45Free shippingFor 2002-2006 Audi A4 Quattro Secondary Air Injection Relay Bosch 51118RZ 2004 (Fits: 2004 Audi A4 Quattro)
Brand New: Bosch$17.32Free shippingSmog Secondary Air Pump Breather Exhaust Hose For Audi A4 VW Passat B6 Golf 5 (Fits: 2004 Audi A4)
Brand New: Unbranded$22.23Top Rated Plus- Sellers with highest buyer ratings
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Was: $23.90Free shippingCatalytic Converter Fits 2002-2004 Audi A4 3.0L V6 GAS DOHC (Fits: 2004 Audi A4)
USC PN# 916225-AB - Fits Rear - SHIPS FREE!!Brand New$148.75Was: $175.00Free shippingN/A Catalytic Converter for 2001-2004 Audi A4 Quattro Turbo 1.8L L4 GAS DOHC (Fits: 2004 Audi A4 Quattro)
US Convertors PN# 514019-EC FREE SHIPPING/EPA CompliantBrand New$165.00Free shipping