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Volkswagen MK4 Engine Emission Parts

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ES#271024 - 028129101E - Crankcase Vent Valve - Genuine Volkswagen Audi - Volkswagen

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271024
Mfg#:
028129101E
Ships in 3 Business Days
12% off MSRP

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

$196.99

This product was last offered at the strikethrough price on
08-31-2026

$172.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2684823 - 1K0998262r - Oxygen Sensor 4 Pin - Black - Located after the catalytic converter - Bosch - Audi Volkswagen

Located after the catalytic converter We Price Match - Give Us A Call or Chat!
Fits the right side

Brand:
Bosch - Corporate Logo
ES#:
2684823
Mfg#:
1K0998262R
Ships in 1 Business Day
$177.81

This product was last offered at the strikethrough price on
08-02-2026

$171.61 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4839784 - 06A906262BG - Oxygen Sensor - Keep your engine running efficiently, with a new O2 sensor - URO - Volkswagen

Keep your engine running efficiently, with a new O2 sensor 2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AVH, AZG or BEV engine code only

Brand:
URO - Corporate Logo
ES#:
4839784
Mfg#:
06A906262BG
In Stock
Limited Qty Sale
$65.99

This product was last offered at the strikethrough price on
11-07-2026

$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1874203 - 06A103213BG - Breather Hose - From T fitting to hose connected to the valve cover. - Genuine Volkswagen Audi - Audi Volkswagen

From T fitting to hose connected to the valve cover.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1874203
Mfg#:
06A103213BG
Ships in 1-2 days
12% off MSRP

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

$193.99

This product was last offered at the strikethrough price on
08-31-2026

$169.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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 Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win 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
ES#7941 - 06A103221BQ - "S" Shaped Breather Hose - Attaches to crankcase breather valve - Genuine Volkswagen Audi - Audi Volkswagen

Attaches to crankcase breather valve For vehicles with AWW or AWD engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
7941
Mfg#:
06A103221BQ
Ships in 1-2 days
12% off MSRP

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

$189.99

This product was last offered at the strikethrough price on
08-31-2026

$166.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#258899 - 06A103221BR - Breather Hose - S Shaped - "S" shaped breather hose that is attached to pressure regulator valve, OEM part #'s: 06A 103 221BR or 06A 103 221E - Genuine Volkswagen Audi - Audi Volkswagen

"S" shaped breather hose that is attached to pressure regulator valve, OEM part #'s: 06A 103 221BR or 06A 103 221E For vehicles with AWP engine code from model year 2002 up to VIN 1J-44009 843, split is in model year 2004

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
258899
Mfg#:
06A103221BR
Ships in 1-2 days
12% off MSRP

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

$189.99

This product was last offered at the strikethrough price on
08-31-2026

$166.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
11-14-2026

$2.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
Ships in 1 Business Day
$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#307366 - 1J0131128 - Air Pump Intake Hose - Connects secondary air pump to airbox - Genuine Volkswagen Audi - Volkswagen

Connects secondary air pump to airbox

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
307366
Mfg#:
1J0131128
Ships in 1-2 days
13% off MSRP

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

$188.99

This product was last offered at the strikethrough price on
08-31-2026

$164.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2812913 - 035103245G - Breather Valve (PCV) - Stepped plastic valves that resides under intake manifold & attached to the engine block breather system - Hamburg Tech - Audi Volkswagen

Stepped plastic valves that resides under intake manifold & attached to the engine block breather system We Price Match - Give Us A Call or Chat!
For vehicles with AWP engine code, with production date up to 6/30/2003

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812913
Mfg#:
035103245G
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
ES#3172449 - 06A133782D - Connecting Pipe OE# 06A133782D - Vacuum system pipe found atop the intake manifold - Vaico - Audi Volkswagen

Vacuum system pipe found atop the intake manifold We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
3172449
Mfg#:
06A133782D
Back Ordered
$53.99

This product was last offered at the strikethrough price on
09-08-2026

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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 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
Ships in 1 Business Day
$161.46

This product was last offered at the strikethrough price on
08-02-2026

$155.83 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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 Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win 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
ES#2199 - 038145345 - Vacuum Pump Sealing Gasket - Recommended with every timing belt change - Genuine Volkswagen Audi - Volkswagen

Recommended with every timing belt change

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2199
Mfg#:
038145345
In Stock
29% off MSRP

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

$12.62

This product was last offered at the strikethrough price on
11-14-2026

$8.99 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 Volkswagen

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

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