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Audi S4 Engine Emission Parts

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ES#471754 - N91055301 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x42 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6x42 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the right Combi valve to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471754
Mfg#:
N91055301
Ships in 1-2 days
39% off MSRP

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

$2.46

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

$1.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3190137 - 911-400 - Suction Pump - Restore engine performance - Dorman - Audi Volkswagen

Restore engine performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Dorman - Corporate Logo
ES#:
3190137
Mfg#:
911-400
Ships in 4 Business Days
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5470132 - 06E103547AH - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Hamburg Tech - Audi

Located beneath the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from the 2013 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
5470132
Mfg#:
06E103547AH
Ships in 1 Business Day
$119.99 USD
Free Shipping
on orders $49 and up
ES#4883740 - 06E103547AC - Oil Separator/Pressure Control Valve (PCV) - Located beneath the supercharger compressor - Rein - Audi

Located beneath the supercharger compressor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Up to the 2012 model year

Brand:
Rein - Corporate Logo
ES#:
4883740
Mfg#:
06E103547AC
Ships in 3 Business Days
$114.99 USD
Free Shipping
on orders $49 and up
ES#2894883 - 06E131101E - EGR Valve - Left - Also known as the 'combi valve' - Vemo - Audi Volkswagen

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

Brand:
Vemo - Corporate Logo
ES#:
2894883
Mfg#:
06E131101E
In Stock at Vendor
$378.99

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

$367.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Also known as the 'combi valve' affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537204
Mfg#:
06E131102B
Ships in 1 Business Day
$179.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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:
SMP - Corporate Logo
ES#:
4142136
Mfg#:
026906283J
In Stock at Vendor
$306.99

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

$297.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#450437 - 8K0201991AQ - Vent Tube - Runs from the charcoal canister to the main fuel lines - Genuine Volkswagen Audi - Audi

Runs from the charcoal canister to the main fuel lines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450437
Mfg#:
8K0201991AQ
Ships in 1-2 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.

$142.99

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

$130.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#468011 - N10340004 - Shouldered Nut - Priced Each - Install new hardware with your new parts. M6 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure secondary air pump to bracket - 3 required

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468011
Mfg#:
N10340004
Ships in 1-2 days
$8.99 USD
Free Shipping
on orders $49 and up
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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2955510
Mfg#:
078131102T
Ships in 1-2 days
7% 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
06-06-2026

$442.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

A common cause of emissions issues affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
3552898
Mfg#:
079906601E
Ships in 1-2 days
$997.99

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

$969.00 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
Fits the left and right position

Brand:
Walker - Corporate Logo
ES#:
2598469
Mfg#:
06E906265Q
Ships in 1-2 days
$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
Fits left and right rear position

Brand:
Walker - Corporate Logo
ES#:
3551566
Mfg#:
1K0998262AB
Ships in 1-2 days
$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

Price includes a $275.00 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4220359
Mfg#:
8W0254252TXKT
Ships in 7 Business Days
$4396.99

This product was last offered at the strikethrough price on
01-07-2026

$3684.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2762333 - 077103245BKT1 - Emissions Service Kit - Complete PCV Kit for your engine - Genuine Volkswagen Audi - Audi

Complete PCV Kit for your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2762333
Mfg#:
077103245BKT1
Ships in 10 Business Days
$1091.57

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

$1086.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Seals the vacuum pump to the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Elring - Corporate Logo
ES#:
4941118
Mfg#:
06E145417A
Special Order: No Guaranteed ETA
$10.99 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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