Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi A4 Engine Emission Parts

Sort By
Filter By
Return to Top

Oil Separator/PCV Valve

ES#4691260 - 06K103495BL - Oil Separator/PCV Valve - Also called the "breather valve" or "oil separator" - Hamburg Tech - Audi Volkswagen

Also called the "breather valve" or "oil separator" We Price Match - Give Us A Call or Chat!
For vehicles with CYMC engine code only

Brand:
Hamburg Tech - Corporate Logo
ES#:
4691260
Mfg#:
06K103495BL
In Stock
$89.99

This product was last offered at the strikethrough price on
06-10-2026

$83.95 USD
Free Shipping
on orders $49 and up

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" 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
From production date 12/17/2005

Brand:
Hengst - Corporate Logo
ES#:
4811023
Mfg#:
06F129101P
Ships in 4 Business Days
$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#3151110 - 06H103495AH - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Genuine Volkswagen Audi - Audi Volkswagen

Also called the "breather valve" or "oil separator" Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3151110
Mfg#:
06H103495AH
In Stock
17% off MSRP

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

$358.74

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

$298.47 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.

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

Secondary Air Injection Pump

ES#2532875 - 06A959253E - Secondary Air Injection Pump - Keep your engine running efficiently - URO - Audi Volkswagen Porsche

Keep your engine running efficiently 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Engine codes ATW & AWM from VIN 8D-Y-100001, split is in the 2000 model year

Brand:
URO - Corporate Logo
ES#:
2532875
Mfg#:
06A959253E
In Stock
$143.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/PCV Valve

ES#4213747 - 06K103495BL - Oil Separator/PCV Valve - Also called the "breather valve" or "oil separator" - Rein - Audi Volkswagen

Also called the "breather valve" or "oil separator" 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with CYMC engine code only

Brand:
Rein - Corporate Logo
ES#:
4213747
Mfg#:
06K103495BL
Back Ordered
Auto Notify
$124.99 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 For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4785750
Mfg#:
06D145100H
In Stock
$160.98 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 For Our 25th Anniversary Sweepstakes!

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

ES#3194688 - 019205ecs01KT - Performance Baffled Oil Catch Can System - Keep your intake tract clean and carbon free - ECS - Audi

Keep your intake tract clean and carbon free 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3194688
Mfg#:
019205ECS01KT
In Stock
ON SALE!
$616.99

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

$586.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Baffled Oil Catch Can - 6oz

ES#4369811 - 003779ECS05-01 - ECS Tuning Baffled Oil Catch Can - 6oz - Capture harmful oil vapors and keep your intake tract clean. Now featuring an easy to empty drain plug! - ECS - Audi BMW Volkswagen MINI

Capture harmful oil vapors and keep your intake tract clean. Now featuring an easy to empty drain plug! 10X Entries For Our 25th Anniversary Sweepstakes!
For use with custom plumbing and ECS universal mounting bracket kit

Brand:
ECS - Corporate Logo
ES#:
4369811
Mfg#:
003779ECS05-01
In Stock
ON SALE! SAVE 46%
$233.99

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

$126.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#1928559 - 06F129101P - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Genuine Volkswagen Audi - Audi Volkswagen

Also called the "breather valve" or "oil separator" From production date 12/17/2005

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1928559
Mfg#:
06F129101P
In Stock
11% 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
07-24-2026

$128.99 USD
Free Shipping
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

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
02-03-2026

$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 For Our 25th Anniversary Sweepstakes!

For vehicles with plastic intake manifolds

Brand:
ECS - Corporate Logo
ES#:
2864670
Mfg#:
004136ECS02
In Stock
ON SALE! SAVE 30%
$75.99

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

$53.09 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 For Our 25th Anniversary Sweepstakes!

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

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 10X Entries For Our 25th Anniversary Sweepstakes!
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

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 For Our 25th Anniversary Sweepstakes!

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

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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings