Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle

Audi S4 Engine Emission Parts

Sort By
Filter By
Return to Top
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
Fits left and right front 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
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 1-2 days
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4030581 - 034-101-3048 - Silicone Throttle Body to Check Valve Hose  - Includes hose clamps! - 034Motorsport - Audi

Includes hose clamps! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4030581
Mfg#:
034-101-3048
Ships in 2 Business Days
$26.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#450433 - 8K0201933M - Vacuum Control Line - Keep your vacuum system in check - Genuine Volkswagen Audi - Audi

Keep your vacuum system in check affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
450433
Mfg#:
8K0201933M
Back Ordered
12% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
02-20-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#1894625 - 06E133773BR - Combi Valve Vacuum Hose  - Set of hoses that connect directly to the EGR 'Combi' valves - Genuine Volkswagen Audi - Audi

Set of hoses that connect directly to the EGR 'Combi' valves affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1894625
Mfg#:
06E133773BR
Ships in 1-2 days
7% off MSRP

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

$80.99

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

$74.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2944378 - LIS22850 - Hose Pinchers  - A must for any car enthusiast. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A must for any car enthusiast. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Lisle - Corporate Logo
ES#:
2944378
Mfg#:
LIS22850
Ships in 1 Business Day
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#11874 - 078133784AJ - F - Hose - Hose that attaches to the PCV valve under the intake manifold - Genuine Volkswagen Audi - Audi

Hose that attaches to the PCV valve under the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to VIN 8D-1-053000, split is in the 2001 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
11874
Mfg#:
078133784AJ
Ships in 8 Business Days
15% off MSRP

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

$76.67

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

$65.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2823247 - 058905291KKT - Check Valve Replacement Kit - Restore engine performance - Assembled By ECS - Audi

Restore engine performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2823247
Mfg#:
058905291KKT
In Stock
ON SALE! SAVE 30%
$14.99

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

$10.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4772520 - 06M103517B - PCV Gasket - Located between the oil separator and the valve cover - Elring - Audi

Located between the oil separator and the valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
4772520
Mfg#:
06M103517B
In Stock at Vendor
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2944218 - LIS12390 - Dual Drive Oxygen Sensor Wrench - Tool comes with both 1/2" and 3/8" drive. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tool comes with both 1/2" and 3/8" drive. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Lisle - Corporate Logo
ES#:
2944218
Mfg#:
LIS12390
Ships in 6 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#469440 - N90280904 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x22 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x22 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469440
Mfg#:
N90280904
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4810701 - 058905291K - Check Valve - Priced Each - Rear position two required per vehicle - Rein - Audi Volkswagen

Rear position two required per vehicle 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#:
4810701
Mfg#:
058905291K
In Stock at Vendor
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#513618 - N10413405 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x25 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x25 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 12/07/2020 up to 01/24/2022

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
513618
Mfg#:
N10413405
In Stock
11% off MSRP

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

$0.70

This product was last offered at the strikethrough price on
03-05-2026

$0.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3235747 - 4F0201550B - Gas Cap  - Replace your leaking cap, or the one you left at the pump - Gates - Audi

Replace your leaking cap, or the one you left at the pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For sedan/avant models only

Brand:
Gates - Corporate Logo
ES#:
3235747
Mfg#:
4F0201550B
Ships in 1-2 days
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3022 - 058905291K - Check Valve - Priced Each - Used in multiple locations in vacuum system - Genuine Volkswagen Audi - Audi Volkswagen

Used in multiple locations in vacuum system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3022
Mfg#:
058905291K
Ships in 1-2 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.

$58.99

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

$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#440760 - 8E0906272C - Leak Detection Pump Hose - Connects the leak detection pump to the filter - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
440760
Mfg#:
8E0906272C
Special Order: No Guaranteed ETA
9% off MSRP

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

$57.99

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

$52.99 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.

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