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

Volkswagen MK4 Engine Emission Parts

Sort By
Filter By
Return to Top

Pressure Control Valve (PCV) Hose

ES#3971258 - 06A133240 - Pressure Control Valve (PCV) Hose - Comes off the PCV valve on the intake tube - URO - Volkswagen

Comes off the PCV valve on the intake tube 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AEG engine code only

Brand:
URO - Corporate Logo
ES#:
3971258
Mfg#:
06A133240
Ships in 1 Business Day
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Cleaning Kit

ES#2992762 - 028129717DKT - Intake Manifold Cleaning Kit - Clean out that clogged intake on your TDI - Assembled By ECS - Volkswagen

Clean out that clogged intake on your TDI 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with ALH engine code only

Brand:
Assembled By ECS - Corporate Logo
ES#:
2992762
Mfg#:
028129717DKT
In Stock
ON SALE!
$62.00

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

$56.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Pump Intake Hose

ES#2804855 - 1J0131128 - Air Pump Intake Hose - Connects secondary air pump to airbox - Vaico - Volkswagen

Connects secondary air pump to airbox We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2804855
Mfg#:
1J0131128
In Stock at Vendor
$84.99

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

$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rubber Mount - Priced Each

ES#3194552 - 037133567F - Rubber Mount - Priced Each - Placed between the secondary air pump and mounting bracket - URO - Audi Volkswagen

Placed between the secondary air pump and mounting bracket 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with VIN up to 9M-X-999 999 only, split is in the 1999 model year

Brand:
URO - Corporate Logo
ES#:
3194552
Mfg#:
037133567F
In Stock
$2.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#4730 - 06A906262BG - Oxygen Sensor - Keep your engine running efficiently, with a new O2 sensor - Bosch - Volkswagen

Keep your engine running efficiently, with a new O2 sensor 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AVH, AZG or BEV engine code only

Brand:
Bosch - Corporate Logo
ES#:
4730
Mfg#:
06A906262BG
In Stock at Vendor
$184.35

This product was last offered at the strikethrough price on
02-14-2026

$161.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Hose - Outlet

ES#4858865 - 8L0133817 - Secondary Air Injection Hose - Outlet - Large pipe that is attached to the air pump and connecting pipe to the combi valve - Rein - Audi Volkswagen

Large pipe that is attached to the air pump and connecting pipe to the combi valve 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission only

Brand:
Rein - Corporate Logo
ES#:
4858865
Mfg#:
8L0133817
In Stock at Vendor
$81.99

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

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Control Solenoid (N249)

ES#3189517 - 667-106 - Valve Control Solenoid (N249) - Valve used to control combi valve operation - Dorman - Audi Volkswagen

Valve used to control combi valve operation

Brand:
Dorman - Corporate Logo
ES#:
3189517
Mfg#:
667-106
Ships in 4 Business Days
$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Allen Bolt - Priced Each

ES#466496 - N01470514 - Allen Bolt - Priced Each - Install new hardware with your new parts. M6x25 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x25

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466496
Mfg#:
N01470514
In Stock
21% 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
07-28-2026

$2.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#2695593 - 028129101E - Pressure Control Valve (PCV) - Mounts on the driver side of the intake manifold - URO - Volkswagen

Mounts on the driver side of the intake manifold 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
URO - Corporate Logo
ES#:
2695593
Mfg#:
028129101E
Ships in 1 Business Day
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Cooler Pipe

ES#275201 - 038131521E - EGR Cooler Pipe - Goes from the manifold to the cooler, no gaskets or hardware included - Genuine Volkswagen Audi - Volkswagen

Goes from the manifold to the cooler, no gaskets or hardware included For vehicles with ALH engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
275201
Mfg#:
038131521E
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.

$161.99

This product was last offered at the strikethrough price on
07-28-2026

$150.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Emissions Suction Pump

ES#4714668 - 06A133751AK - Emissions Suction Pump - Located near the intake manifold - Kayser - Volkswagen

Located near the intake manifold For vehicles from the 2004 model year with AWP engine code only

Brand:
Kayser - Corporate Logo
ES#:
4714668
Mfg#:
06A133751AK
Back Ordered
$154.99

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

$150.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

ES#2702959 - 06A103247KT2 - Emissions Service Kit - Restore your emissions hoses and clear codes - Assembled By ECS - Volkswagen

Restore your emissions hoses and clear codes 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with an AWP engine code up to production date 6.30.2003

Brand:
Assembled By ECS - Corporate Logo
ES#:
2702959
Mfg#:
06A103247KT2
Back Ordered
ON SALE! SAVE 15%
$170.99

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

$145.85 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#2836685 - 028129101E - Pressure Control Valve (PCV) - Mounts on the driver side of the intake manifold - Vaico - Volkswagen

Mounts on the driver side of the intake manifold We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
Vaico - Corporate Logo
ES#:
2836685
Mfg#:
028129101E
In Stock
Limited Qty Sale
$32.00

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

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Hose

ES#307368 - 1J0131128B - Secondary Air Hose - Intermediate pipe to airbox from air pump - Genuine Volkswagen Audi - Volkswagen

Intermediate pipe to airbox from air pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307368
Mfg#:
1J0131128B
Ships in 4 Business Days
6% off MSRP

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

$154.99

This product was last offered at the strikethrough price on
07-28-2026

$144.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EGR Connecting Pipe

ES#4505133 - 038131521CC - EGR Connecting Pipe - Connects regulating flap to cylinder head - URO - Volkswagen

Connects regulating flap to cylinder head 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with BEW engine code only

Brand:
URO - Corporate Logo
ES#:
4505133
Mfg#:
038131521CC
Ships in 1 Business Day
$71.99 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 Volkswagen

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