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Audi A4 Engine Emission Parts

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Pressure Control Valve (PCV) - (19mm)

ES#2804355 - 034129101BKT1 - Pressure Control Valve (PCV) - (19mm) - Located on the turbo inlet pipe. Includes hose clamps - Assembled By ECS - Audi Volkswagen

Located on the turbo inlet pipe. Includes hose clamps affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Engine codes AEB & ATW

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804355
Mfg#:
034129101BKT1
In Stock
ON SALE! SAVE 18%
$38.99

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

$31.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#4057351 - 06H103495AK - Pressure Control Valve (PCV) - Also referred to as the breather valve or oil separator - URO - Audi

Also referred to as 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!
Fits from production date 3/31/2012 - Please check existing part number before ordering

Brand:
URO - Corporate Logo
ES#:
4057351
Mfg#:
06H103495AK
In Stock
$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve Gasket

ES#4770409 - 06H103484A - Pressure Control Valve Gasket - Ensure a proper seal for the PCV or oil separator - Elring - Audi Volkswagen

Ensure a proper seal for the PCV or oil separator 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#:
4770409
Mfg#:
06H103484A
In Stock
$29.99

This product was last offered at the strikethrough price on
02-23-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Bolt - Priced Each

ES#468916 - N10725401 - Oil Separator Bolt - Priced Each - Used to secure the oil separator to the valve cover. M6x20 - Genuine Volkswagen Audi - Audi Volkswagen

Used to secure the oil separator to the valve cover. M6x20 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468916
Mfg#:
N10725401
In Stock
3% off MSRP

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

$3.38

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

$3.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#3559040 - 06H103495AH - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Vaico - 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!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Vaico - Corporate Logo
ES#:
3559040
Mfg#:
06H103495AH
Ships in 3 Business Days
$132.99

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

$128.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

ES#4135419 - 06J103221A - PCV Breather Hose - Connects PCV to the intake manifold - Hamburg Tech - Audi Volkswagen

Connects PCV to 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 the 2012 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
4135419
Mfg#:
06J103221A
In Stock
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover (Catch Can) PCV Adapter Plate

ES#2966733 - 010371ECS03 - Valve Cover (Catch Can) PCV Adapter Plate - Add a catch can to your stock valve cover with this billet breather adapter. For use with -10AN ORB Female Fittings. - ECS - Audi Volkswagen

Add a catch can to your stock valve cover with this billet breather adapter. For use with -10AN ORB Female Fittings. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2966733
Mfg#:
010371ECS03
Ships on Oct 21, 2026
Auto Notify
ON SALE! SAVE 15%
$183.99

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

$155.83 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Breather Adapter

ES#3432401 - 034-101-5000 - Valve Cover Breather Adapter - Eliminates failure-prone factory PCV and allows a provision for custom catch can setups on 2.0T TFSI/TSI - 034Motorsport - Audi

Eliminates failure-prone factory PCV and allows a provision for custom catch can setups on 2.0T TFSI/TSI affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use with custom DIY catch can setup - Not direct bolt-on

Brand:
034Motorsport - Corporate Logo
ES#:
3432401
Mfg#:
034-101-5000
Ships in 2 Business Days
$333.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Breather Tube

ES#2099472 - 06D103215A - Breather Tube - If you have boost leaks, get a new breather tube today - Genuine Volkswagen Audi - Audi

If you have boost leaks, get a new breather tube today affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from VIN 8E-6-165 001 - Split is in the 2006 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2099472
Mfg#:
06D103215A
In Stock
20% off MSRP

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

$143.33

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

$115.07 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum System Purge Valve & Hose Set

ES#2644254 - 06H133781CL - Vacuum System Purge Valve & Hose Set - Includes the solenoid valve and check valve with 3 hoses - Genuine Volkswagen Audi - Audi

Includes the solenoid valve and check valve with 3 hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits facelift (from 2013) models with CFKA, CPMA, and CPMB engine codes

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2644254
Mfg#:
06H133781CL
Ships in 1-2 days
5% off MSRP

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

$290.00

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

$276.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4643076 - 037906283C - Solenoid Valve - Priced Each - 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#:
4643076
Mfg#:
037906283C
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Catch Can Kit

ES#3544026 - 034-101-1010 - 034Motorsport Catch Can Kit - Keep your intake tract clean and carbon free - 034Motorsport - Audi

Keep your intake tract clean and carbon free affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Not for vehicles with metal intake manifold (Flex Fuel)

Brand:
034Motorsport - Corporate Logo
ES#:
3544026
Mfg#:
034-101-1010
Ships in 2 Business Days
$717.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VWR Oil Catch Can Drain Kit

ES#4430957 - VWR130006 - VWR Oil Catch Can Drain Kit - A simple addition to make emptying your RacingLine Oil Management Kit quick, clean and simple! - Racingline - Audi Volkswagen

A simple addition to make emptying your RacingLine Oil Management Kit quick, clean and simple! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4430957
Mfg#:
VWR130006
In Stock
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter

ES#253059 - 06A115405BS - Oil Filter Adapter - With an integrated oil separator - Genuine Volkswagen Audi - Audi Volkswagen

With an integrated oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
253059
Mfg#:
06A115405BS
In Stock at Vendor
7% off MSRP

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

$462.99

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

$428.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RS5 Gas Cap

ES#3457816 - 8W0201550B - RS5 Gas Cap - Fuel filler cap with Audi 'RS' logo - Includes retaining strap - Genuine Volkswagen Audi - Audi

Fuel filler cap with Audi 'RS' logo - Includes retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3457816
Mfg#:
8W0201550B
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.

$85.00

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

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) Repair Kit

ES#3658988 - 06h103495aeKT - Pressure Control Valve (PCV) Repair Kit - Also called the "breather valve" or "oil separator". Located on top of the valve cover. - Genuine Volkswagen Audi - Audi

Also called the "breather valve" or "oil separator". Located on top of the valve cover. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits from production date 3/31/2012 - Please check existing part number before ordering

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3658988
Mfg#:
06H103495AEKT
In Stock
$347.99 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

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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