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Audi D4 A8 Quattro 3.0 TDI

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Audi D4 A8 Quattro 3.0 TDI Engine Emission Parts

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AdBlue DEF Fluid - 1 Liter

ES#4621426 - G0529101LPDC - AdBlue DEF Fluid - 1 Liter - Diesel exhaust fluid - Genuine Volkswagen Audi - Audi BMW Volkswagen Mercedes Benz

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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4621426
Mfg#:
G0529101LPDC
In Stock
2% off MSRP

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

$3.69

This product was last offered at the strikethrough price on
01-12-2026

$3.62 USD
Free Shipping
on orders $49 and up

Innovate LC-2 Wideband O2 Controller Kit

ES#4809696 - 38770 - Innovate LC-2 Wideband O2 Controller Kit - Includes Lambda cable & 8-foot sensor cable. - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Includes Lambda cable & 8-foot sensor cable. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4809696
Mfg#:
38770
In Stock
$212.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AdBlue DEF Fluid - 10 Liters

ES#4474178 - 46329 - AdBlue DEF Fluid - 10 Liters - Diesel exhaust fluid - Febi - Audi BMW Volkswagen Mercedes Benz Porsche

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

Brand:
Febi - Corporate Logo
ES#:
4474178
Mfg#:
46329
Ships in 1 Business Day
$35.99

This product was last offered at the strikethrough price on
05-06-2026

$29.54 USD
Free Shipping
on orders $49 and up
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 1 Business Day
$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

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
Back Ordered
Auto Notify
$17.85 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
Ships on Jun 23, 2026
Auto Notify
$11.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Wrench 3/8" drive

ES#2949705 - SLY88750B - Oxygen Sensor Wrench 3/8" drive - O2 Sensor Socket - Schley - Audi Volkswagen Mercedes Benz MINI

O2 Sensor Socket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Schley - Corporate Logo
ES#:
2949705
Mfg#:
SLY88750B
Ships in 4 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Universal Oil Catch Can - AN Fittings

ES#4487795 - MS100218 - APR Universal Oil Catch Can - AN Fittings - Universal/Service part for APR's MS100199 full catch can system - APR - Audi Volkswagen Porsche

Universal/Service part for APR's MS100199 full catch can system Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4487795
Mfg#:
MS100218
Ships on Jul 1, 2026
11% off MSRP

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

$264.99

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

$234.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EGR Cooler Gasket

ES#1911242 - 059131358B - EGR Cooler Gasket - Gasket from EGR cooler to EGR pipe/filter - Genuine Volkswagen Audi - Audi Volkswagen

Gasket from EGR cooler to EGR pipe/filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
1911242
Mfg#:
059131358B
Ships in 1-2 days
8% off MSRP

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

$12.99

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

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator

ES#4325036 - 079103542E - Oil Separator - A truly complete kit for oil separator system replacement - URO - Audi

A truly complete kit for oil separator system replacement 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#:
4325036
Mfg#:
079103542E
Ships in 1 Business Day
$223.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product has been superseded to ES#4773177

AdBlue - 10 Liters

ES#4433084 - 004989042014 - AdBlue - 10 Liters - Diesel exhaust fluid - Genuine Mercedes Benz - Audi BMW Volkswagen Mercedes Benz Porsche

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

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4433084
Mfg#:
004989042014
In Stock
$66.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Catch Can O-ring

ES#3097721 - N1.50X051 - ECS Catch Can O-ring - Replacement ECS catch can O-ring - ECS - Audi BMW Volkswagen MINI

Replacement ECS catch can O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3097721
Mfg#:
N1.50X051
In Stock
ON SALE! SAVE 30%
$5.99

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

$4.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Pipe Clamp

ES#4151277 - 1K0253725E - EGR Pipe Clamp - This should be replaced every time the EGR tube is removed. - Rein - Audi Volkswagen

This should be replaced every time the EGR tube is removed. 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#:
4151277
Mfg#:
1K0253725E
Back Ordered
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Solenoid Valve

ES#2897319 - 1K0906283A - Vacuum Solenoid Valve - Electrically controlled vacuum valve - Vemo - Audi Volkswagen

Electrically controlled vacuum valve affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2897319
Mfg#:
1K0906283A
In Stock at Vendor
$56.99

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

$54.99 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

Filling Hose for AdBlue Urea Solution

ES#2631596 - 000012499 - Filling Hose for AdBlue Urea Solution - Attaches to container and mounts to vehicle tank for spill-less filling of Adblue solution - Genuine Volkswagen Audi - Audi Volkswagen

Attaches to container and mounts to vehicle tank for spill-less filling of Adblue solution affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2631596
Mfg#:
000012499
Ships on Nov 27, 2026
Auto Notify
11% off MSRP

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

$48.38

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

$43.06 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.

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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