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Audi A4 Engine Emission Parts

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Oxygen Sensor Tool - 22mm

ES#3673912 - B8800067 - Oxygen Sensor Tool - 22mm - 1/2" Drive - 7/8" x 6" - Extra Long - Bav Auto Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

1/2" Drive - 7/8" x 6" - Extra Long 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673912
Mfg#:
B8800067
Ships on Sep 30, 2026
Auto Notify
ON SALE! SAVE 20%
$29.99

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

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Universal Catch Can Drain System

ES#3698456 - 003779ECS11 - ECS Tuning Universal Catch Can Drain System - Make draining your ECS or Turner Catch Can simple with this comprehensive kit - ECS - Audi Volkswagen MINI

Make draining your ECS or Turner Catch Can simple with this comprehensive kit 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3698456
Mfg#:
003779ECS11
In Stock
ON SALE! SAVE 25%
$71.99

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

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Fuel Filler Cap - Screw-In Type

ES#4447602 - VWR190000 - VWR Billet Fuel Filler Cap - Screw-In Type - Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! - Racingline - Audi Volkswagen

Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! For vehicles with threaded screw-in style gas caps only. Please confirm prior to ordering.

Brand:
Racingline - Corporate Logo
ES#:
4447602
Mfg#:
VWR190000
Ships in 2 Business Days
ON SALE! SAVE 10%
$137.99

This product was last offered at the strikethrough price on
08-29-2026

$123.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve Gasket

ES#2816730 - 06F103483E - Pressure Control Valve Gasket - Stop leaks by replacing your old gasket when servicing your PCV system - Elring - Audi Volkswagen

Stop leaks by replacing your old gasket when servicing your PCV system 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2816730
Mfg#:
06F103483E
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap With Strap

ES#3514670 - 4F0201550J - Gas Cap With Strap - Replace your leaking cap, or the one you left at the pump - URO - Audi

Replace your leaking cap, or the one you left at the pump 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For sedan/avant models only

Brand:
URO - Corporate Logo
ES#:
3514670
Mfg#:
4F0201550J
In Stock
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Charcoal Canister

ES#436511 - 8E0201801L - Charcoal Canister - Keep your fuel system efficient - Genuine Volkswagen Audi - Audi

Keep your fuel system efficient From the 2004 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
436511
Mfg#:
8E0201801L
Ships in 5 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.

$809.99

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

$762.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4818483 - 06H906283B - Solenoid Valve - Priced Each - Control valve for the flaps inside the intake manifold - Bremmen Parts - Audi Volkswagen

Control valve for the flaps inside the intake manifold 10X Entries Into Our F80 M3 Sweepstakes

Intake flap control solenoid - Fits from the 2013 model year

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818483
Mfg#:
06H906283B
In Stock
ON SALE!
$36.99

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

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

ES#4758338 - 06F103235A - PCV Breather Hose - Connects the PCV valve to oil filter adapter - URO - Audi Volkswagen

Connects the PCV valve to oil filter adapter 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4758338
Mfg#:
06F103235A
In Stock
$28.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

ES#4135419 - 06J103221A - PCV Breather Hose - Connects PCV to the intake manifold - Hamburg Tech - Audi Volkswagen

Connects PCV to the intake manifold We Price Match - Give Us A Call or Chat!
Up to the 2012 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
4135419
Mfg#:
06J103221A
In Stock
ON SALE! SAVE 20%
$27.99

This product was last offered at the strikethrough price on
09-03-2026

$22.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Injection Pump

ES#1844013 - 078906601M - Secondary Air Injection Pump - Keep your engine running efficiently - Pierburg - Audi Volkswagen

Keep your engine running efficiently Engine codes ATW & AWM up to VIN 8D-Y-100000, split is in the 2000 model year

Brand:
Pierburg - Corporate Logo
ES#:
1844013
Mfg#:
078906601M
Ships in 1 Business Day
$597.00

This product was last offered at the strikethrough price on
03-24-2026

$484.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump Gasket

ES#281327 - 06H103121J - Vacuum Pump Gasket - Recommended to be replaced when replacing vacuum pump. - Genuine Volkswagen Audi - Audi Volkswagen

Recommended to be replaced when replacing vacuum pump.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281327
Mfg#:
06H103121J
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.

$18.98

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

$14.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve with Hardware

ES#3102559 - 06E906517AKT - Purge Valve with Hardware - Common fix for error code DTC#P0441 - Assembled By ECS - Audi Volkswagen

Common fix for error code DTC#P0441 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3102559
Mfg#:
06E906517AKT
In Stock
ON SALE! SAVE 12%
$39.99

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

$35.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) Kit

ES#3690237 - 06h103495akt3KT - Pressure Control Valve (PCV) Kit - Also called the "breather valve" or "oil separator". Located on top of the valve cover. - Assembled By ECS - Audi

Also called the "breather valve" or "oil separator". Located on top of the valve cover. 10X Entries Into Our F80 M3 Sweepstakes
Fits from production date 3/31/2012 - Please check existing part number before ordering

Brand:
Assembled By ECS - Corporate Logo
ES#:
3690237
Mfg#:
06H103495AKT3KT
In Stock
ON SALE! SAVE 24%
$108.99

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

$82.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gas Cap With Strap

ES#4700584 - 5WA201550BD - Gas Cap With Strap - Replace your leaking cap, or the one you left at the pump - Genuine Volkswagen Audi - Audi

Replace your leaking cap, or the one you left at the pump Fits vehicle with production dates from 06/21/2021

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4700584
Mfg#:
5WA201550BD
Ships in 1 day
11% off MSRP

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

$73.99

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

$66.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV) Repair Kit

ES#3659035 - 06h103495ahktKT1 - Pressure Control Valve (PCV) Repair Kit - Also called the "breather valve" or "oil separator". Located on top of the valve cover. - Genuine Volkswagen Audi - Audi Volkswagen

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3659035
Mfg#:
06H103495AHKTKT1
In Stock
$394.99

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

$327.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve Assembly

ES#3648624 - 06L133781BG - Purge Valve Assembly - Is your Audi suffering from a rough idle, poor fuel economy, or that dreaded Check Engine Light? The culprit might just be a failing EVAP purge valve. - Genuine Volkswagen Audi - Audi

Is your Audi suffering from a rough idle, poor fuel economy, or that dreaded Check Engine Light? The culprit might just be a failing EVAP purge valve.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3648624
Mfg#:
06L133781BG
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.

$156.67

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

$145.37 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.

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