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Audi S4 Engine Emission Parts

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ES#2803814 - 058133753D - Suction Pump - Restore engine performance - Rein - Audi Volkswagen

Restore engine performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803814
Mfg#:
058133753D
In Stock at Vendor
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2860613 - 8K0201550P - Gas Cap - Includes seal ring and retaining strap - Genuine Volkswagen Audi - Audi

Includes seal ring and retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2860613
Mfg#:
8K0201550P
Ships in 2 Business Days
8% off MSRP

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

$73.99

This product was last offered at the strikethrough price on
06-06-2026

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4876407 - 8K0906253N - Leak Detection Pump - Tests the fueling system for leaks - URO - Audi

Tests the fueling system for leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4876407
Mfg#:
8K0906253N
In Stock
$112.99

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

$93.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4809696 - 38770 - Innovate LC-2 Wideband O2 Controller Kit - Includes Lambda cable & 8-foot sensor cable. - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Includes Lambda cable & 8-foot sensor cable. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4809696
Mfg#:
38770
In Stock
$212.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2631446 - 034129101B - Pressure Control Valve (PCV) - Located on the turbo inlet pipe. 19mm - Vaico - Audi Volkswagen

Located on the turbo inlet pipe. 19mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2631446
Mfg#:
034129101B
In Stock
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4376432 - 1C0 906 517A - Purge Valve - Common cure for DTC P0441 - URO - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4376432
Mfg#:
1C0 906 517A
Ships in 1 Business Day
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3438274 - 06E131101K - EGR Valve - Left - Also known as the 'combi valve' - Pierburg - Audi

Also known as the 'combi valve' affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
3438274
Mfg#:
06E131101K
Ships in 4 Business Days
$99.99

This product was last offered at the strikethrough price on
02-10-2026

$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3447989 - 034-101-1001 - Catch Can Breather Kit - The ultimate breather can kit for the C4 AAN S4/S6, everything needed for a clean, OEM-type conversion - 034Motorsport - Audi

The ultimate breather can kit for the C4 AAN S4/S6, everything needed for a clean, OEM-type conversion affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3447989
Mfg#:
034-101-1001
Ships in 2 Business Days
$385.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4883733 - 077103245B - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Rein - Audi Volkswagen

Also called the "breather valve" or "oil separator" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883733
Mfg#:
077103245B
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4039378 - 078103547F - Crankcase Breather Gasket - Seals the crankcase breather to the engine block - Elring - Audi

Seals the crankcase breather to the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4039378
Mfg#:
078103547F
Ships in 3 Business Days
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#440757 - 8E0906201K - Leak Detection Pump - Diagnosis pump for fuel system - Genuine Volkswagen Audi - Audi

Diagnosis pump for fuel system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
440757
Mfg#:
8E0906201K
In Stock
8% off MSRP

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

$415.00

This product was last offered at the strikethrough price on
06-06-2026

$379.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2663732 - 026906283J - Intake System Vacuum Solenoid - Controls actuation of the Combi Valve or Diverter Valve - Genuine Volkswagen Audi - Audi Volkswagen

Controls actuation of the Combi Valve or Diverter Valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine codes ATW & AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2663732
Mfg#:
026906283J
Ships in 2 Business Days
9% off MSRP

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

$208.99

This product was last offered at the strikethrough price on
06-06-2026

$189.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#319086 - 1K0998262F - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi Volkswagen

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
319086
Mfg#:
1K0998262F
Ships in 2 Business Days
8% off MSRP

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

$413.99

This product was last offered at the strikethrough price on
06-06-2026

$378.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5396700 - 5WA201550BD - Gas Cap With Strap - Replace your leaking cap, or the one you left at the pump - Hamburg Tech - Audi

Replace your leaking cap, or the one you left at the pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits vehicle with production dates from 06/21/2021

Brand:
Hamburg Tech - Corporate Logo
ES#:
5396700
Mfg#:
5WA201550BD
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4818590 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen Porsche

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818590
Mfg#:
1C0906517A
In Stock
ON SALE! SAVE 21%
$37.99

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

$30.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2535165 - 4B0201550H - Gas Cap - Includes seal and retaining strap - URO - Audi

Includes seal and retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535165
Mfg#:
4B0201550H
Ships in 1 Business Day
$24.99

This product was last offered at the strikethrough price on
04-10-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Emission Parts

Repairing failed emission components doesn't just turn off the check engine light so you can pass your local emissions test, it also improves performance and fuel economy. ECS stocks all common emission controls, from oxygen sensors to PCV valves.

Let us help you find the parts that fit your Audi

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

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