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Audi A4 Engine Emission Parts

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ES#2661314 - 058131101B - EGR Valve - Also known as the 'combi valve' - Pierburg - Audi Volkswagen

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

Brand:
Pierburg - Corporate Logo
ES#:
2661314
Mfg#:
058131101B
Ships in 1-2 days
$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4045313 - 06E103464D - Pressure Control Valve (PCV) - Located beneath the intake manifold. - Hamburg Tech - Audi

Located beneath the intake manifold. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Up to VIN 8E-6-285000, split is in the 2006 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
4045313
Mfg#:
06E103464D
Ships in 2 Business Days
$139.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4135682 - 06E906265Q - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Denso - Audi

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

Brand:
Denso - Corporate Logo
ES#:
4135682
Mfg#:
06E906265Q
Ships in 1 Business Day
$154.99

This product was last offered at the strikethrough price on
03-16-2026

$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3419356 - 1K0998262N - Oxygen Sensor - Left (Cylinders 4-6)  - Found before the catalytic converter - Walker - Audi Volkswagen

Found before the catalytic converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Walker - Corporate Logo
ES#:
3419356
Mfg#:
1K0998262N
In Stock at Vendor
$161.99

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

$137.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3678766 - 06M906094 - Sealing Cap  - Sealing line that attaches to breather line (8W0201991AD) that connects to the AKF Valve line (06L133781AM) - Genuine Volkswagen Audi - Audi

Sealing line that attaches to breather line (8W0201991AD) that connects to the AKF Valve line (06L133781AM) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 05/15/2023

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3678766
Mfg#:
06M906094
Ships in 2 Business Days
6% off MSRP

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

$18.31

This product was last offered at the strikethrough price on
04-14-2026

$17.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#7934 - 06A103213F - Crankcase Breather Tube - Connects the oil filter adapter to the three-way valve housing - Genuine Volkswagen Audi - Audi Volkswagen

Connects the oil filter adapter to the three-way valve housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 8E-3-500000, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
7934
Mfg#:
06A103213F
Ships in 3 Business 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.

$146.99

This product was last offered at the strikethrough price on
06-07-2026

$136.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4057477 - 1K0998262T - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Denso - Audi Volkswagen

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

Brand:
Denso - Corporate Logo
ES#:
4057477
Mfg#:
1K0998262T
In Stock at Vendor
$151.99

This product was last offered at the strikethrough price on
03-16-2026

$135.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4829 - 058131817 - Adapter For Combi Valve - Allows the combi valve to be mounted on the cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

Allows the combi valve to be mounted on the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code ATW

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4829
Mfg#:
058131817
Ships in 3 Business Days
6% off MSRP

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

$144.99

This product was last offered at the strikethrough price on
06-07-2026

$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#273415 - 034133999H - Pressure Relief Valve Connection - Repair your broken breather hose - Genuine Volkswagen Audi - Audi

Repair your broken breather hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
273415
Mfg#:
034133999H
Special Order: No Guaranteed ETA
6% off MSRP

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

$144.99

This product was last offered at the strikethrough price on
06-07-2026

$135.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4828 - 078131120M - SAI/EGR Valve Adapter Gasket - Priced Each - Seals the combi valve adapter to the cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

Seals the combi valve adapter to the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4828
Mfg#:
078131120M
In Stock
16% off MSRP

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

$4.61

This product was last offered at the strikethrough price on
06-07-2026

$3.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2825758 - 1K0998262E - 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#:
2825758
Mfg#:
1K0998262E
Ships in 1-2 days
$132.99

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

$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2813146 - 07C133529A - Vacuum Check Valve - Located near off of the intake manifold connecting to the suction pump - Hamburg Tech - Audi

Located near off of the intake manifold connecting to the suction pump 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#:
2813146
Mfg#:
07C133529A
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#470296 - N90598804 - Torx Screw - Priced Each - Install new hardware with your new parts. M6x12 - Genuine Volkswagen Audi - Audi

Install new hardware with your new parts. M6x12 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
470296
Mfg#:
N90598804
Ships in 3 Business Days
$2.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4864897 - 8D0906321 - Leak Detection Pump Filter - Cleans the air entering the leak detection pump - Vaico - Audi Volkswagen

Cleans the air entering the leak detection pump 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#:
4864897
Mfg#:
8D0906321
In Stock at Vendor
$65.99

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

$63.99 USD
Free Shipping
on orders $49 and up
ES#3648447 - 06a129101dkt2KT - Pressure Control Valve (PCV) Repair Kit - Located under the intake manifold. Includes hose clamps - Genuine Volkswagen Audi - Audi Volkswagen

Located under the intake manifold. Includes hose clamps affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3648447
Mfg#:
06A129101DKT2KT
Ships in 5 Business Days
$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3508349 - 06J145100P - Vacuum Pump - Generates vacuum when under positive pressure - Hudson - Audi

Generates vacuum when under positive pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
3508349
Mfg#:
06J145100P
Ships in 1 day
$125.99 USD
Free Shipping
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

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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