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Audi A4 Engine Emission Parts

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Vacuum Pump

ES#2681799 - 06D145100H - Vacuum Pump - Generates vacuum when under positive pressure - Pierburg - Audi Volkswagen

Generates vacuum when under positive pressure Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Pierburg - Corporate Logo
ES#:
2681799
Mfg#:
06D145100H
In Stock
$385.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#4811023 - 06F129101P - 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" 5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!
From production date 12/17/2005

Brand:
Hengst - Corporate Logo
ES#:
4811023
Mfg#:
06F129101P
In Stock
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#2575254 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Pierburg - Audi Volkswagen

Common cure for DTC P0441 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Pierburg - Corporate Logo
ES#:
2575254
Mfg#:
037906283C
In Stock
$66.99

This product was last offered at the strikethrough price on
10-25-2026

$61.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum System Purge Valve & Hose Set

ES#4818481 - 06H133781CK - Vacuum System Purge Valve & Hose Set - Includes the solenoid valve and check valve with 3 hoses - Bremmen Parts - Audi

Includes the solenoid valve and check valve with 3 hoses 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Fits pre-facelift (up to 2012) models with CAEB engine code

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818481
Mfg#:
06H133781CK
In Stock
ON SALE! SAVE 15%
$89.99

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

$76.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Baffled Oil Catch Can System - Audi B7 A4 2.0T

ES#2966735 - 010371ecs01KT - Performance Baffled Oil Catch Can System - Audi B7 A4 2.0T - Keep your intake tract clean and carbon free - ECS - Audi

Keep your intake tract clean and carbon free 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
2966735
Mfg#:
010371ECS01KT
Ships on Mar 16, 2027
ON SALE!
$576.99

This product was last offered at the strikethrough price on
06-13-2026

$559.68 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Priced Each

ES#4766182 - 1K0998262T - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bremmen Parts - Audi Volkswagen

Keep your engine running efficiently 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766182
Mfg#:
1K0998262T
In Stock
ON SALE! SAVE 18%
$91.99

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

$75.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4818410 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen

Common cure for DTC P0441 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818410
Mfg#:
037906283C
In Stock
ON SALE! SAVE 15%
$45.99

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

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

ES#2723967 - 06H103495EKT2 - Emissions Service Kit - Everything you need to replace a faulty PCV valve - Assembled By ECS - Audi

Everything you need to replace a faulty PCV valve 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2723967
Mfg#:
06H103495EKT2
In Stock
ON SALE! SAVE 22%
$178.36

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

$138.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) Kit

ES#3690239 - 06h103495akt4KT - Pressure Control Valve (PCV) Kit - Also called the "breather valve" or "oil separator". Located on top of the valve cover. - Assembled By ECS - Audi

Also called the "breather valve" or "oil separator". Located on top of the valve cover. 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Fits from production date 3/31/2012 - Please check existing part number before ordering

Brand:
Assembled By ECS - Corporate Logo
ES#:
3690239
Mfg#:
06H103495AKT4KT
In Stock
ON SALE! SAVE 24%
$108.99

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

$82.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Catch Can Kit

ES#2848072 - CTSCCB8.5TFSi - Billet Catch Can Kit - Reduce oil deposits that lower performance - CTS - Audi

Reduce oil deposits that lower performance Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
From the 2013 model year

Brand:
CTS - Corporate Logo
ES#:
2848072
Mfg#:
CTSCCB8.5TFSI
In Stock
ON SALE! SAVE 15%
$499.99

This product was last offered at the strikethrough price on
09-29-2026

$424.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Catch Can Kit - Carbon Fiber

ES#2500608 - MM0CCCF - Universal Catch Can Kit - Carbon Fiber - Kit with catch can and rubber hose; for retrofitting on a variety of vehicles. - Mishimoto - Audi BMW Volkswagen MINI

Kit with catch can and rubber hose; for retrofitting on a variety of vehicles. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Mishimoto - Corporate Logo
ES#:
2500608
Mfg#:
MM0CCCF
In Stock
$162.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#4785750 - 06D145100H - Vacuum Pump - Generates vacuum when under positive pressure - URO - Audi Volkswagen

Generates vacuum when under positive pressure 2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4785750
Mfg#:
06D145100H
Ships on Nov 17, 2026
$160.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Baffled Oil Catch Can Mounting Bracket Kit - Universal Fit

ES#2918376 - 003779ECS06KT - ECS Tuning Baffled Oil Catch Can Mounting Bracket Kit - Universal Fit - Universal 3-piece mounting bracket kit for installing a new ECS Oil Catch Can - ECS - Audi BMW Volkswagen MINI

Universal 3-piece mounting bracket kit for installing a new ECS Oil Catch Can 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
ECS - Corporate Logo
ES#:
2918376
Mfg#:
003779ECS06KT
In Stock
ON SALE! SAVE 25%
$95.99

This product was last offered at the strikethrough price on
06-13-2026

$71.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

ES#2832685 - 8K0201550N - Gas Cap - Includes seal and retaining strap - Genuine Volkswagen Audi - Audi

Includes seal and retaining strap Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2832685
Mfg#:
8K0201550N
In Stock
9% off MSRP

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

$73.33

This product was last offered at the strikethrough price on
10-28-2026

$66.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV / Intake Block Off Cap

ES#2864670 - 004136ecs02 - PCV / Intake Block Off Cap - Used to plug the PCV or intake manifold side port on TSI or FSI engines - ECS - Audi Volkswagen

Used to plug the PCV or intake manifold side port on TSI or FSI engines 10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

For vehicles with plastic intake manifolds

Brand:
ECS - Corporate Logo
ES#:
2864670
Mfg#:
004136ECS02
In Stock
ON SALE! SAVE 35%
$75.99

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

$49.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#4620648 - 06E103547P - Pressure Control Valve (PCV) - Located beneath the intake manifold - Hengst - Audi
ECS Tuning recommends this product.

Located beneath the intake manifold 5X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
We Price Match - Give Us A Call or Chat!

Brand:
Hengst - Corporate Logo
ES#:
4620648
Mfg#:
06E103547P
In Stock
$119.99 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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