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Audi A4 Engine Emission Parts

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Pressure Control Valve Gasket

ES#3438918 - 06H103484A - Pressure Control Valve Gasket - Ensure a proper seal for the PCV or oil separator - Ajusa - Audi Volkswagen

Ensure a proper seal for the PCV or oil separator

Brand:
Ajusa - Corporate Logo
ES#:
3438918
Mfg#:
06H103484A
Ships in 3 Business Days
$28.99 USD
Free Shipping
on orders $49 and up

Suction Pump

ES#3190137 - 911-400 - Suction Pump - Restore engine performance - Dorman - Audi Volkswagen

Restore engine performance

Brand:
Dorman - Corporate Logo
ES#:
3190137
Mfg#:
911-400
Ships in 4 Business Days
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump

ES#4620214 - 06A959253E - Secondary Air Injection Pump - Keep your engine running efficiently - Hamburg Tech - Audi Volkswagen

Keep your engine running efficiently 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:
Hamburg Tech - Corporate Logo
ES#:
4620214
Mfg#:
06A959253E
Ships in 1 Business Day
$187.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#4220576 - 06J145100G - Vacuum Pump - Generates vacuum when under positive pressure - Rein - Audi

Generates vacuum when under positive pressure 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4220576
Mfg#:
06J145100G
Ships in 3 Business Days
$365.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#4809687 - 058103493A - Breather Hose - Connects the PVC to the metal vent tube - Rein - Audi Volkswagen

Connects the PVC to the metal vent tube 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4809687
Mfg#:
058103493A
Ships in 3 Business Days
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#4220569 - 06E145100T - Vacuum Pump - Generates vacuum when under positive pressure - Rein - Audi

Generates vacuum when under positive pressure 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4220569
Mfg#:
06E145100T
Ships in 3 Business Days
$225.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Ventilation Valve

ES#4883635 - 078103245E - Crankcase Ventilation Valve - "PCV" valve - Rein - Audi Volkswagen

"PCV" valve 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4883635
Mfg#:
078103245E
Ships in 3 Business Days
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Tube - Priced Each

ES#4810197 - 06C103217H - Breather Tube - Priced Each - PCV hose set assembly, includes PCV valve - Rein - Audi

PCV hose set assembly, includes PCV valve 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Up to the 2003 model year

Brand:
Rein - Corporate Logo
ES#:
4810197
Mfg#:
06C103217H
Ships in 3 Business Days
$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose

ES#3194963 - 06B103224C - Breather Hose - Connects to the breather valve under the intake manifold - Vaico - Audi Volkswagen

Connects to the breather valve under the intake manifold We Price Match - Give Us A Call or Chat!
From VIN 8E-3-040001 up to VIN 8E-3-500000, splits are in the 2003 model year

Brand:
Vaico - Corporate Logo
ES#:
3194963
Mfg#:
06B103224C
Ships in 1 Business Day
$52.99

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

$51.99 USD
Free Shipping
on orders $49 and up
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
Ships in 1 Business Day
$61.99

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

$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2894326 - 021906265AG - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Vemo - Audi Volkswagen

Keep your engine running efficiently Up to VIN 8D-W-007799, split is in the 1998 model year

Brand:
Vemo - Corporate Logo
ES#:
2894326
Mfg#:
021906265AG
Ships in 1 Business Day
$127.00

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

$123.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve - Left

ES#2894883 - 06E131101E - EGR Valve - Left - Also known as the 'combi valve' - Vemo - Audi Volkswagen

Also known as the 'combi valve'

Brand:
Vemo - Corporate Logo
ES#:
2894883
Mfg#:
06E131101E
Ships in 1 Business Day
$378.99

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

$367.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2719264 - 021906265AQ - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Walker - Audi Volkswagen

Keep your engine running efficiently From VIN 8D-W-007800, split is in the 1998 model year

Brand:
Walker - Corporate Logo
ES#:
2719264
Mfg#:
021906265AQ
Ships in 1 Business Day
$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor

Restore fuel mileage and clear codes We Price Match - Give Us A Call or Chat!
For cylinders 1-3

Brand:
Bosch - Corporate Logo
ES#:
2550380
Mfg#:
13944
Ships in 1 Business Day
$248.99

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

$241.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather hose

Engine code AWM

Brand:
Burgaflex - Corporate Logo
ES#:
4349480
Mfg#:
06A103213F
Ships in 8 Business Days
$8.99 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 Audi

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

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