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

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
affirm financing terms & conditions
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi A4 Oxygen Sensors

Sort By
Filter By
Return to Top

Rear Oxygen Sensor - Priced Each

ES#2570165 - 1K0998262T - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Walker - Audi Volkswagen

Keep your engine running efficiently

Brand:
Walker - Corporate Logo
ES#:
2570165
Mfg#:
1K0998262T
Ships in 1-2 days
$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - 4 Pin - Black

Located after the catalytic converter For models with BGN engine code only - Fits left and right sides

Brand:
Walker - Corporate Logo
ES#:
3690282
Mfg#:
1K0998262R
Ships in 1-2 days
$106.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

Keep your engine running efficiently 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5470646
Mfg#:
1K0998262L
Ships on Dec 4, 2026
Auto Notify
ON SALE! SAVE 20%
$129.99

This product was last offered at the strikethrough price on
05-29-2026

$103.99 USD
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 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

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

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

Dual Drive Oxygen Sensor Wrench

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.

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

Offset Oxygen Sensor Wrench- Extended

ES#4001169 - CTA2065 - Offset Oxygen Sensor Wrench- Extended - Extra length is needed sometimes - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Extra length is needed sometimes

Brand:
CTA Tools - Corporate Logo
ES#:
4001169
Mfg#:
CTA2065
Back Ordered
$19.99 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
In Stock at Vendor
$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

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
In Stock at Vendor
$128.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor

Restore fuel mileage and clear codes 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For cylinders 1-3

Brand:
Bosch - Corporate Logo
ES#:
2550380
Mfg#:
13944
In Stock at Vendor
$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

Oxygen Sensor - Priced Each

ES#2635543 - 1K0998262D - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Walker - Audi Volkswagen

Keep your engine running efficiently

Brand:
Walker - Corporate Logo
ES#:
2635543
Mfg#:
1K0998262D
Ships in 1-2 days
$167.99

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

$162.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

Keep your engine running efficiently

Brand:
Denso - Corporate Logo
ES#:
3438766
Mfg#:
1K0998262E
Ships in 1-2 days
$262.99

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

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Priced Each

Keep your engine running efficiently Fits the left and right position

Brand:
Walker - Corporate Logo
ES#:
2598469
Mfg#:
06E906265Q
Ships in 1-2 days
$163.99

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

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

Keep your engine running efficiently For engine code ATQ, fits left and right position

Brand:
Walker - Corporate Logo
ES#:
3551566
Mfg#:
1K0998262AB
Ships in 1-2 days
$142.99

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

$138.99 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 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

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