Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi B5 Engine Emission Parts

Sort By
Filter By
Return to Top

Vacuum Tank

ES#357507 - 443131541 - Vacuum Tank - Holds vacuum pressure - Genuine Volkswagen Audi - Audi Volkswagen

Holds vacuum pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
357507
Mfg#:
443131541
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.

$56.99

This product was last offered at the strikethrough price on
02-26-2026

$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Hose

ES#263051 - 078103223B - Crankcase Breather Hose - Small "S" breather hose that runs on the backside of the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

Small "S" breather hose that runs on the backside of the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
263051
Mfg#:
078103223B
Ships in 1 day
9% off MSRP

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

$109.99

This product was last offered at the strikethrough price on
02-26-2026

$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump Elbow

ES#270501 - 026133784G - Leak Detection Pump Elbow - Connects the leak detection pump to the vacuum reservoir adapter - Genuine Volkswagen Audi - Audi Volkswagen

Connects the leak detection pump to the vacuum reservoir adapter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
270501
Mfg#:
026133784G
Ships in 1 day
14% off MSRP

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

$21.99

This product was last offered at the strikethrough price on
02-26-2026

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oxygen Sensor Bung - Priced Each

ES#5051 - ATP-FLS-022 - Universal Oxygen Sensor Bung - Priced Each - Stainless steel weld-in nut for any O2 sensor - ATP - Audi BMW Volkswagen

Stainless steel weld-in nut for any O2 sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022
Ships in 6 Business Days
$12.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose - Priced Each

ES#467883 - N10303504 - Hose - Priced Each - Replacement line that can be cut to size. 7.3x3.5mm - Genuine Volkswagen Audi - Audi

Replacement line that can be cut to size. 7.3x3.5mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
467883
Mfg#:
N10303504
Ships in 3 Business Days
9% off MSRP

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

$98.99

This product was last offered at the strikethrough price on
02-26-2026

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PVC Vent Tube

ES#2662134 - 06B103213T - PVC Vent Tube - Connects the hose connector to the PCV elbow - Genuine Volkswagen Audi - Audi Volkswagen

Connects the hose connector to the PCV elbow affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2662134
Mfg#:
06B103213T
Ships in 3 Business Days
11% off MSRP

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

$100.00

This product was last offered at the strikethrough price on
02-26-2026

$88.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Breather Valve Boot

ES#272959 - 034103247G - Breather Valve Boot - Connects the PCV assembly to the suction pump hose - Genuine Volkswagen Audi - Audi

Connects the PCV assembly to the suction pump hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
272959
Mfg#:
034103247G
Ships in 6 Business Days
10% off MSRP

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

$96.99

This product was last offered at the strikethrough price on
02-26-2026

$86.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Three-Way Valve Housing

ES#4818429 - 06A103247 - Three-Way Valve Housing - 'T' shaped connection below the intake manifold - Bremmen Parts - Audi Volkswagen

'T' shaped connection below the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818429
Mfg#:
06A103247
Ships on Sep 22, 2026
Auto Notify
ON SALE! SAVE 18%
$7.99

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

$6.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2894981 - 078906265N - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Vemo - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For engine code ATQ, fits left and right position

Brand:
Vemo - Corporate Logo
ES#:
2894981
Mfg#:
078906265N
Special Order: No Guaranteed ETA
$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp - Priced Each

ES#263953 - N10258101 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 23-35x9x.5 - Genuine Volkswagen Audi - Audi Volkswagen

Install new clamps to stay leak free. 23-35x9x.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the bleeder valve to the 'T' shaped fitting

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
263953
Mfg#:
N10258101
Ships in 1 day
13% off MSRP

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

$7.99

This product was last offered at the strikethrough price on
06-03-2026

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#5375 - 078906265D - Oxygen Sensor - Fits left &/or right sides - Bosch - Audi

Fits left &/or right sides affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
5375
Mfg#:
078906265D
Ships in 1-2 days
$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Angled Breather Hose

ES#277662 - 058133784AF - Angled Breather Hose - Connects the check valve and the suction jet pipe - Genuine Volkswagen Audi - Audi

Connects the check valve and the suction jet pipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From VIN 8D-X-200001, split is in the 1999 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277662
Mfg#:
058133784AF
Ships in 1 day
15% off MSRP

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

$47.99

This product was last offered at the strikethrough price on
02-26-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#257161 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Hudson - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hudson - Corporate Logo
ES#:
257161
Mfg#:
1C0906517A
Ships in 1 day
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Three-Way Valve Housing

ES#258895 - 06A103247 - Three-Way Valve Housing - 'T' shaped connection below the intake manifold - Genuine Volkswagen Audi - Audi Volkswagen

'T' shaped connection below the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
258895
Mfg#:
06A103247
Ships in 1 day
13% off MSRP

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

$22.99

This product was last offered at the strikethrough price on
02-26-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Check Valve

ES#1895504 - 433862117 - Check Valve - Vacuum Non Return Valve - Kayser - Audi

Vacuum Non Return Valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Kayser - Corporate Logo
ES#:
1895504
Mfg#:
433862117
Ships in 1-2 days
$16.99

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

$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Reduction Hose

ES#4699457 - 058133370A - Reduction Hose - Keep your engine running smooth - URO - Audi Volkswagen

Keep your engine running smooth affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes! 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Engine code ATW & AWM only

Brand:
URO - Corporate Logo
ES#:
4699457
Mfg#:
058133370A
Ships in 1 Business Day
$25.99 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 Audi

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings