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Audi A4 Engine Emission Parts

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ES#4620654 - 06H103495AH - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Hengst - Audi Volkswagen
ECS Tuning recommends this product.

Also called the "breather valve" or "oil separator" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
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:
Hengst - Corporate Logo
ES#:
4620654
Mfg#:
06H103495AH
In Stock
ON SALE! SAVE 10%
$129.99

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

$116.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4620655 - 06H103495AK - Pressure Control Valve (PCV) - Also referred to as the breather valve or oil separator - Hengst - Audi
ECS Tuning recommends this product.

Also referred to as the breather valve or oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits from production date 3/31/2012 - Please check existing part number before ordering

Brand:
Hengst - Corporate Logo
ES#:
4620655
Mfg#:
06H103495AK
In Stock
ON SALE! SAVE 10%
$104.99

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

$94.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3181777 - 06H103495AK - Pressure Control Valve (PCV) - Also referred to as the breather valve or oil separator - Genuine Volkswagen Audi - Audi

Also referred to as the breather valve or oil separator 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#:
3181777
Mfg#:
06H103495AK
In Stock
$318.29

This product was last offered at the strikethrough price on
04-09-2026

$317.68 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3102255 - 06H103495AE - Pressure Control Valve (PCV) 06H103495AK - Also referred to as the breather valve or oil separator - Hamburg Tech - 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:
Hamburg Tech - Corporate Logo
ES#:
3102255
Mfg#:
06H103495AE
In Stock
$72.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2794717 - IEBACG1 - IE Recirculating Catch Can Kit - Prevent crankcase oil fumes from condensing and filling your turbo piping, intercooler, and intake manifold - Integrated Engineering - Audi

Prevent crankcase oil fumes from condensing and filling your turbo piping, intercooler, and intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

For models with plastic intake manifold only

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794717
Mfg#:
IEBACG1
In Stock
$591.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4040043 - 003779ecs05-01KT -  Universal ECS Tuning Baffled Oil Catch Can Kit (8oz) - Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. - ECS - Audi Volkswagen

Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4040043
Mfg#:
003779ECS05-01KT
In Stock
ON SALE! SAVE 10%
$408.90

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

$368.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4000101 - 023473ecs01KT - Silicone Upper & Lower PCV Hose Set (Replaces 06F103221H & 06F103235A)  - Replace your failure-prone plastic PCV hoses with a long term, high quality solution - ECS - Audi Volkswagen

Replace your failure-prone plastic PCV hoses with a long term, high quality solution affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4000101
Mfg#:
023473ECS01KT
In Stock
ON SALE! SAVE 42%
$134.99

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

$78.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2598466 - 1K0998262L - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi Volkswagen

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

Brand:
Bosch - Corporate Logo
ES#:
2598466
Mfg#:
1K0998262L
In Stock
$160.16 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#1893854 - 1K0998262T - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi Volkswagen

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

Brand:
Bosch - Corporate Logo
ES#:
1893854
Mfg#:
1K0998262T
In Stock
$172.99

This product was last offered at the strikethrough price on
04-06-2026

$120.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4772412 - 06H103495AH -  Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Bremmen Parts - Audi Volkswagen

Also called the "breather valve" or "oil separator" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Bremmen Parts - Corporate Logo
ES#:
4772412
Mfg#:
06H103495AH
In Stock
ON SALE! SAVE 20%
$61.99

This product was last offered at the strikethrough price on
01-08-2026

$49.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2681799 - 06D145100H - Vacuum Pump - Generates vacuum when under positive pressure - Pierburg - Audi Volkswagen

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

Brand:
Pierburg - Corporate Logo
ES#:
2681799
Mfg#:
06D145100H
In Stock
$385.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2718626 - 06H103495E -  Pressure Control Valve (PCV) OE# 06H103495AH - Also called the "breather valve" or "oil separator" - Hamburg Tech - 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:
Hamburg Tech - Corporate Logo
ES#:
2718626
Mfg#:
06H103495E
In Stock
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4135423 - 06h103495ktKT - Pressure Control Valve (PCV) Repair Kit - Everything you need to replace a faulty PCV or to perform some preventative maintenance - Hamburg Tech - Audi

Everything you need to replace a faulty PCV or to perform some preventative maintenance 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:
Hamburg Tech - Corporate Logo
ES#:
4135423
Mfg#:
06H103495KTKT
In Stock
$121.99

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

$113.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4743015 - 06H103495AE - Pressure Control Valve (PCV) 06H103495AK - Also referred to as the breather valve or oil separator - Bremmen Parts - Audi

Also referred to as the breather valve or oil separator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits from production date 3/31/2012 - Please check existing part number before ordering

Brand:
Bremmen Parts - Corporate Logo
ES#:
4743015
Mfg#:
06H103495AE
In Stock
ON SALE! SAVE 12%
$78.99

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

$69.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3571736 - 06K103495BL - Oil Separator/PCV Valve - Also called the "breather valve" or "oil separator" - Genuine Volkswagen Audi - Audi Volkswagen

Also called the "breather valve" or "oil separator" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with CYMC engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3571736
Mfg#:
06K103495BL
Ships on Jun 8, 2026
12% off MSRP

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

$250.00

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

$220.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2794147 - IEBAVC17 - PCV Solution Kit - with Boost Cap - Delete your failure-prone PCV valve - Integrated Engineering - Audi Volkswagen

Delete your failure-prone PCV valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with FSI engines only

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794147
Mfg#:
IEBAVC17
In Stock
$117.99 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

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

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