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Audi A4 Exhaust Emission Parts

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Keep your emissions in check affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Left side

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537205
Mfg#:
078131101AG
Ships in 1 Business Day
$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2766069 - 078131120KKT3 - EGR Valve Replacement Kit - Complete gasket and hardware to replace the EGR valve - Assembled By ECS - Audi

Complete gasket and hardware to replace the EGR valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2766069
Mfg#:
078131120KKT3
Ships in 1 day
ON SALE!
$62.99

This product was last offered at the strikethrough price on
05-02-2026

$59.55 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2955509 - 078131101AG - Combi Valve / EGR Valve - Left - Keep your emissions in check - Genuine Volkswagen Audi - Audi Volkswagen

Keep your emissions in check affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Left side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2955509
Mfg#:
078131101AG
Ships in 1 day
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$474.99

This product was last offered at the strikethrough price on
02-26-2026

$431.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2955510 - 078131102T - Combi Valve / EGR Valve - Priced Each - Keep your emissions in check - Genuine Volkswagen Audi - Audi Volkswagen

Keep your emissions in check affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Right side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2955510
Mfg#:
078131102T
Ships in 1 day
9% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$474.99

This product was last offered at the strikethrough price on
02-26-2026

$431.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2142952 - 8E0131089BX - Remanufactured Catalytic Converter - Includes a $210 refundable core charge - Genuine Volkswagen Audi - Audi Volkswagen

Includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2142952
Mfg#:
8E0131089BX
Ships in 1 day
$1074.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement
ES#2635543 - 1K0998262D - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Walker - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Walker - Corporate Logo
ES#:
2635543
Mfg#:
1K0998262D
Ships in 1 day
$167.99

This product was last offered at the strikethrough price on
05-07-2026

$162.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Denso - Corporate Logo
ES#:
3438766
Mfg#:
1K0998262E
Ships in 1 day
$262.99

This product was last offered at the strikethrough price on
05-07-2026

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2703164
Mfg#:
4B0254200XKT
Ships in 1 day
$1303.99 USD
This product is lifetime replacement eligible Partial Replacement

Connects the catalytic converter to the center exhaust muffler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450483
Mfg#:
8K0254352C
Ships in 1 day
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$798.99

This product was last offered at the strikethrough price on
02-26-2026

$742.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2608417
Mfg#:
8K0254252KXKT
Ships in 1 day
$3159.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Price includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
5 speed manual transmission only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2532234
Mfg#:
8E0254500PXKT
Ships in 1 day
$1512.99

This product was last offered at the strikethrough price on
02-26-2026

$1497.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Price includes a $210 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code AVK

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762438
Mfg#:
8E0254505BXKT
Ships in 1 day
$1687.99 USD
This product is lifetime replacement eligible Partial Replacement

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits the left and right position

Brand:
Walker - Corporate Logo
ES#:
2598469
Mfg#:
06E906265Q
Ships in 1 day
$163.99

This product was last offered at the strikethrough price on
05-07-2026

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For engine code ATQ, fits left and right position

Brand:
Walker - Corporate Logo
ES#:
3551566
Mfg#:
1K0998262AB
Ships in 1 day
$142.99

This product was last offered at the strikethrough price on
05-07-2026

$138.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3028724 - 8D0253115KT4 - Catalytic Converter Installation Kit - Includes the necessary hardware and gaskets to install the catalytic converter - Genuine Volkswagen Audi - Audi Volkswagen

Includes the necessary hardware and gaskets to install the catalytic converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3028724
Mfg#:
8D0253115KT4
Ships in 3 Business Days
$175.99

This product was last offered at the strikethrough price on
05-27-2026

$162.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2535678 - 8E0254555FXKT - Remanufactured Catalytic Converter - Right Side - Price includes a $125 core charge - Genuine Volkswagen Audi - Audi

Price includes a $125 core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmissions only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2535678
Mfg#:
8E0254555FXKT
Ships in 6 Business Days
$2710.99

This product was last offered at the strikethrough price on
02-26-2026

$2681.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Emission Parts

Oxygen sensors, catalytic converters, and other critical emissions components not only cause Check Engine Lights when they fail, but they'll also keep you from registering your car. Make sure your emissions system is functioning properly so you can continue to drive your car legally.

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Manufacturer names and/or part numbers are used only for identification purposes.

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