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Audi A4 Engine Emission Parts

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ES#3021897 - CCT003 - BFI Clean Catch Can V2 - Race Kit - B8 Audi TSI - Keep your intake tract clean and oil free, with this BFI baffled Oil Catch Can System - Black Forest Industries - Audi

Keep your intake tract clean and oil free, with this BFI baffled Oil Catch Can System affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3021897
Mfg#:
CCT003
Ships on Jun 29, 2026
$539.99 USD
Free Shipping
ES#4750144 - 06D145100H - Vacuum Pump - Generates vacuum when under positive pressure - Hamburg Tech - Audi Volkswagen

Generates vacuum when under positive pressure 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#:
4750144
Mfg#:
06D145100H
In Stock
$149.99

This product was last offered at the strikethrough price on
01-21-2026

$134.95 USD
Free Shipping
on orders $49 and up
ES#450424 - 8K0201801C - Charcoal Canister - Keep your fuel system efficient - Genuine Volkswagen Audi - Audi

Keep your fuel system efficient affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450424
Mfg#:
8K0201801C
Ships in 1 day
8% off MSRP

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

$581.99

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

$532.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2210965 - 06D145100H - Vacuum Pump - Generates vacuum when under positive pressure - Genuine Volkswagen Audi - Audi Volkswagen

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2210965
Mfg#:
06D145100H
Ships in 1 day
7% off MSRP

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

$569.99

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

$530.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4151137 - 06E145100T - Vacuum Pump - Generates vacuum when under positive pressure. Includes seal. - Rein - Audi

Generates vacuum when under positive pressure. Includes seal. 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#:
4151137
Mfg#:
06E145100T
In Stock at Vendor
$370.99

This product was last offered at the strikethrough price on
04-30-2026

$261.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#471135 - N90905902 - PCV Valve Bolt - Priced Each - Bolt secures the PCV valve to the cylinder head. M5x16mm - Genuine Volkswagen Audi - Audi Volkswagen

Bolt secures the PCV valve to the cylinder head. M5x16mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the PCV valve to the cylinder head, 4 required per car

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471135
Mfg#:
N90905902
In Stock
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#280852 - 06E131120B - EGR Valve Gasket - Priced Each - Ensure a proper seal - Genuine Volkswagen Audi - Audi

Ensure a proper seal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280852
Mfg#:
06E131120B
In Stock
5% off MSRP

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

$11.33

This product was last offered at the strikethrough price on
06-02-2026

$10.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#280068 - 06B133817S - Connecting Pipe - Connects the secondary air pump to the lower hard pipe - Genuine Volkswagen Audi - Audi

Connects the secondary air pump to the lower hard pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280068
Mfg#:
06B133817S
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.

$140.00

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

$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#5469767 - 06h103495ah-KT - Pressure Control Valve (PCV) Kit - 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
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Hamburg Tech - Corporate Logo
ES#:
5469767
Mfg#:
06H103495AH-KT
In Stock
$127.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4818464 - 06F103221H - PCV Breather Hose - Connects the PCV valve to intake manifold - Bremmen Parts - Audi Volkswagen

Connects the PCV valve to intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818464
Mfg#:
06F103221H
In Stock
ON SALE! SAVE 23%
$16.99

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

$13.05 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3435230 - 06H103213J - Breather Tube - Located on the rear of the valve cover, a common boost leak area - Rein - Audi

Located on the rear of the valve cover, a common boost leak area 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#:
3435230
Mfg#:
06H103213J
Back Ordered
$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4460630 - rad20-0530 - Universal 10AN ORB To 3/8" Barb - This PCV can be used on the outlet of any Radium Engineering catch can - Radium Engineering - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This PCV can be used on the outlet of any Radium Engineering catch can affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Radium Engineering - Corporate Logo
ES#:
4460630
Mfg#:
RAD20-0530
In Stock
$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4352395 - 06E103464D - Pressure Control Valve (PCV) - Located beneath the intake manifold. - URO - 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:
URO - Corporate Logo
ES#:
4352395
Mfg#:
06E103464D
Ships in 1 Business Day
$160.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2897353 - 1K0998262AB - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Vemo - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For engine code ATQ, fits left and right position

Brand:
Vemo - Corporate Logo
ES#:
2897353
Mfg#:
1K0998262AB
Ships on Sep 30, 2026
$160.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4818468 - 06F129101R - 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!

Up to production date 12/16/2005

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818468
Mfg#:
06F129101R
In Stock
ON SALE! SAVE 21%
$31.99

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

$25.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#274480 - 037103772B - Breather Assembly - Attaches directly to the engine block - Genuine Volkswagen Audi - Audi Volkswagen

Attaches directly to the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine codes AEB & ATW

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274480
Mfg#:
037103772B
Ships in 2 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.

$128.99

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

$119.99 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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