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Volkswagen MK4 Engine Emission Parts

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1/8" Barbed Vacuum Fittings - Set Of 10

Perfect for repairing and replacing cracked vacuum lines - Best used with 3mm to 4mm vacuum hoses 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5445719
Mfg#:
125DBCON
Special Order: No Guaranteed ETA
ON SALE! SAVE 10%
$5.99

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

$5.39 USD
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection System Service Kit

ES#2804856 - 06A959253EKT - Secondary Air Injection System Service Kit - Restore air injection operation and replace aging components - Assembled By ECS - Volkswagen

Restore air injection operation and replace aging components 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with AEG engine code with VIN from 1J-Y-000 001 only, split is in the 2000 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804856
Mfg#:
06A959253EKT
Back Ordered
ON SALE!
$615.99

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

$599.00 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

GROMMET

ES#2800949 - 28103500 - GROMMET - Meistersatz - Volkswagen

Brand:
Meistersatz - Corporate Logo
ES#:
2800949
Mfg#:
28103500
Back Ordered
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#2738302 - 06A103221AN - Breather Hose - 3-way breather hose at sits on top of the valve cover - OE Aftermarket - Audi Volkswagen

3-way breather hose at sits on top of the valve cover For models with AWP engine code - From the 2003 model year

Brand:
OE Aftermarket - Corporate Logo
ES#:
2738302
Mfg#:
06A103221AN
Back Ordered
$43.99

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

$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#4810577 - 028129101E - Pressure Control Valve (PCV) - Mounts on the driver side of the intake manifold - Rein - Volkswagen

Mounts on the driver side of the intake manifold 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with ALH engine code only

Brand:
Rein - Corporate Logo
ES#:
4810577
Mfg#:
028129101E
Back Ordered
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#5432896 - 06A103465D - Pressure Control Valve (PCV) - Located on top of the valve cover - URO - Volkswagen

Located on top of the valve cover 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with AEG engine code only

Brand:
URO - Corporate Logo
ES#:
5432896
Mfg#:
06A103465D
Back Ordered
$17.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Pressure Accumulator

ES#2885559 - 38129807 - Pressure Accumulator - Vaico - Audi Volkswagen

We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2885559
Mfg#:
38129807
Special Order: No Guaranteed ETA
$61.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

Replacement fuel tank cap for your vehicle. Tether not included.

Brand:
Gates - Corporate Logo
ES#:
4780171
Mfg#:
1J0201553A
Back Ordered
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Valve (PCV)

Stepped plastic valves that resides under intake manifold & attached to the engine block breather system For vehicles with AWP engine code, with production date up to 6/30/2003

Brand:
Kayser - Corporate Logo
ES#:
4743016
Mfg#:
035103245G
Back Ordered
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap

Replacement fuel tank cap for your vehicle. Tether not included.

Brand:
MotoRad
ES#:
4698376
Mfg#:
1J0201553A
Back Ordered
$11.99

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

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Adapter

With an integrated oil separator We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4865930
Mfg#:
06A115405BS
Special Order: No Guaranteed ETA
$332.99 USD
Free Shipping
on orders $49 and up

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.

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