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Audi A4 Exhaust Emission Parts

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Oxygen Sensor 4 Pin - Black

ES#1853403 - 1K0998262R - Oxygen Sensor 4 Pin - Black - Located after the catalytic converter - Genuine Volkswagen Audi - Audi Volkswagen

Located after the catalytic converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with BGN engine code only - Fits left and right sides

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1853403
Mfg#:
1K0998262R
Ships in 8 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.

$374.99

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

$340.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Socket - 22mm

ES#4490396 - 4680-1 - Oxygen Sensor Socket - 22mm - Properly remove stubborn o2 sensors. - Hazet - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Properly remove stubborn o2 sensors. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hazet - Corporate Logo
ES#:
4490396
Mfg#:
4680-1
Ships in 2 Business Days
$118.99

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

$115.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket

ES#263525 - 8D0253115 - Exhaust Gasket - Seals the turbocharger to the catalytic converter - Genuine Volkswagen Audi - Audi Volkswagen

Seals the turbocharger to the catalytic converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
263525
Mfg#:
8D0253115
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.

$70.99

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

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Flange Stud - Priced Each

ES#468923 - N10730201 - Turbo Flange Stud - Priced Each - Allows the catalytic converter to bolt up to the turbocharger. M10x32 - Genuine Volkswagen Audi - Audi

Allows the catalytic converter to bolt up to the turbocharger. M10x32 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468923
Mfg#:
N10730201
In Stock
$6.37 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Priced Each

ES#281028 - 06E906265Q - Rear Oxygen Sensor - Priced Each - Keep your engine running efficiently - Genuine Volkswagen Audi - Audi

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281028
Mfg#:
06E906265Q
Ships in 1-2 days
2% off MSRP

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

$323.34

This product was last offered at the strikethrough price on
06-02-2026

$316.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thin Wall Oxygen Sensor Socket

ES#4001177 - CTA2064 - Thin Wall Oxygen Sensor Socket - Out of space? Use this thin wall socket. - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Out of space? Use this thin wall socket. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4001177
Mfg#:
CTA2064
In Stock
$17.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catalytic Converter Kit

ES#2586344 - 8E0131089DXKT - Catalytic Converter Kit - Includes related hardware and gaskets - Assembled By ECS - Audi

Includes related hardware and gaskets affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Not legal for sale or use in the state of New York or California

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586344
Mfg#:
8E0131089DXKT
Back Ordered
$308.99

This product was last offered at the strikethrough price on
01-03-2026

$286.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor

ES#281026 - 06E906265N - Rear Oxygen Sensor - Restore fuel mileage and clear codes - Genuine Volkswagen Audi - Audi

Restore fuel mileage and clear codes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For cylinders 4-6

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281026
Mfg#:
06E906265N
Ships in 5 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.

$319.99

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

$284.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Oxygen Sensor - Priced Each

ES#2897355 - 1K0998262L - Front 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

Brand:
Vemo - Corporate Logo
ES#:
2897355
Mfg#:
1K0998262L
Special Order: No Guaranteed ETA
$290.99 USD
Free Shipping

Self-Locking Nut - Priced Each

ES#6398 - N90085001 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M8 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the downpipe to the catalytic converter

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
6398
Mfg#:
N90085001
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor

ES#281027 - 06E906265P - Rear Oxygen Sensor - Clear codes and restore fuel mileage - Genuine Volkswagen Audi - Audi

Clear codes and restore fuel mileage affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Position is right side after catalyst.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
281027
Mfg#:
06E906265P
Ships in 4 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.

$315.99

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

$281.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

7 Piece Sensor Socket Set

Perfect kit for unique sensors throughout the car. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
OTC - Corporate Logo
ES#:
2947301
Mfg#:
OTC4673
Ships in 7 Business Days
$278.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Thread Chaser

ES#4001163 - CTA2068 - Oxygen Sensor Thread Chaser - Remove rust and dirt for easy installation with this tool - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Remove rust and dirt for easy installation with this tool affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4001163
Mfg#:
CTA2068
In Stock
$11.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve Gasket - Priced Each

ES#2718617 - 078131120K - EGR Valve Gasket - Priced Each - Ensure a proper seal - Elring - Audi Volkswagen

Ensure a proper seal 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:
Elring - Corporate Logo
ES#:
2718617
Mfg#:
078131120K
In Stock
$5.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket

ES#4147623 - 8E0253115D - Exhaust Gasket - Located between the turbo & catalytic converter - Elring - Audi

Located between the turbo & catalytic converter 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:
Elring - Corporate Logo
ES#:
4147623
Mfg#:
8E0253115D
In Stock
$8.99

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

$7.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EXHAUST PIPE GASKET

ES#4150679 - 8K0253115J - EXHAUST PIPE GASKET - Ajusa - Audi

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

Brand:
Ajusa - Corporate Logo
ES#:
4150679
Mfg#:
8K0253115J
Back Ordered
Auto Notify
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Exhaust Emission Parts

Oxygen sensors, catalytic converters, and other critical emissions components not only cause Check Engine Lights when they fail, but they'll also keep you from registering your car. Make sure your emissions system is functioning properly so you can continue to drive your car legally.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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