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Audi Engine Emission Parts

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Rear Oxygen Sensor

ES#2550381 - 15158 - Rear Oxygen Sensor - Keep your engine running efficiently - Bosch - Audi

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For cylinders 4-6

Brand:
Bosch - Corporate Logo
ES#:
2550381
Mfg#:
15158
Back Ordered
$177.99

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

$176.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#2834598 - 1K0998262F - Front Oxygen Sensor - Priced Each - Keep your engine running efficiently - NTK - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits left and right position

Brand:
NTK - Corporate Logo
ES#:
2834598
Mfg#:
1K0998262F
Back Ordered
$182.99

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

$177.99 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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

Crankcase Breather Gasket

ES#11826 - 078103547f - Crankcase Breather Gasket - Seals the crankcase breather to the engine block - Original Equipment Supplier - Audi

Seals the crankcase breather to the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
11826
Mfg#:
078103547F
Back Ordered
6% off MSRP

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

$48.99

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

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Vent Hose

ES#4883738 - 079103209AM - Cylinder Head Vent Hose - Connects PCV to the valve covers - Rein - Audi Volkswagen

Connects PCV to the valve covers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
From production date 5/9/2006

Brand:
Rein - Corporate Logo
ES#:
4883738
Mfg#:
079103209AM
Back Ordered
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

TEMPERATURE SENSOR

ES#4151115 - 03L906088EJ - TEMPERATURE SENSOR - Rein - Audi Volkswagen

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4151115
Mfg#:
03L906088EJ
Back Ordered
$165.99 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

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

Air Pump

ES#4880664 - 7H0959253 - Air Pump - Left - URO - Audi

Left affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4880664
Mfg#:
7H0959253
Back Ordered
$135.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/Pressure Control Valve (PCV)

ES#4780878 - 06M103515H - Oil Separator/Pressure Control Valve (PCV) - Also known as the "PCV". Located on the valve cover - Vaico - Audi

Also known as the "PCV". Located on the valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4780878
Mfg#:
06M103515H
Special Order: No Guaranteed ETA
$131.99 USD
Free Shipping
on orders $49 and up

Vacuum Pump

ES#4859643 - 06E145100AA - Vacuum Pump - Generates vacuum when under positive pressure - Vaico - Audi

Generates vacuum when under positive pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4859643
Mfg#:
06E145100AA
Special Order: No Guaranteed ETA
$132.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Check Valve

ES#2878682 - 078611933B - Vacuum Check Valve - Multiple line check valve that sits in the back of the intake manifold - Vaico - Audi

Multiple line check valve that sits in the back of the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
2000-2001 automatic transmission only, 2002 & up all transmission

Brand:
Vaico - Corporate Logo
ES#:
2878682
Mfg#:
078611933B
Special Order: No Guaranteed ETA
$16.99 USD
Free Shipping
on orders $49 and up

Oxygen Sensor - Priced Each

ES#2770927 - 1K0998262C - Oxygen Sensor - Priced Each - Fits left and right sides - Walker - Audi Volkswagen

Fits left and right sides affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code BNK

Brand:
Walker - Corporate Logo
ES#:
2770927
Mfg#:
1K0998262C
Back Ordered
$132.99

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

$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

Restore your emissions hoses and clear codes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits models with AWP engine code from the 2003 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
3171154
Mfg#:
035103245GKT1
Back Ordered
Auto Notify
ON SALE!
$378.99

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

$349.15 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Gas Cap

Replacement fuel tank cap for your vehicle. Tether not included. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8D-W-070001 up to VIN 8D-X-300000, splits are in the 1998/1999 model years

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

Gas Cap

Replacement fuel tank cap for your vehicle. Tether not included. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Crankcase Vent Valve

Commonly called 'PCV' or 'Oil Separator' - Located in the valley between the cylinder heads affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
3647218
Mfg#:
079103704N
Back Ordered
$199.99

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

$193.99 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.

Other Audi Engine Emission Parts

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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