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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Engine Parts & Accessories

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Lash Adjuster - Priced Each

ES#2570002 - 022109423D - Lash Adjuster - Priced Each - Maintain your factory tolerance - Ina - Audi Volkswagen

Maintain your factory tolerance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2570002
Mfg#:
022109423D
In Stock
$6.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat/Water Pump Kit

ES#4039367 - 06L121111H - Thermostat/Water Pump Kit - Includes thermostat, water pump, gasket, and belt. Made in Germany! - Vemo - Audi Volkswagen

Includes thermostat, water pump, gasket, and belt. Made in Germany! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
4039367
Mfg#:
06L121111H
Ships on Oct 20, 2026
$376.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Drop In Replacement Air Filter

ES#3988613 - E-0646 - Drop In Replacement Air Filter - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - K&N - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
3988613
Mfg#:
E-0646
In Stock
$83.99

This product was last offered at the strikethrough price on
01-20-2026

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#3676785 - 8W0133843C - Air Filter - Keep clean air running through your engine - Hengst - Audi
ECS Tuning recommends this product.

Keep clean air running through your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!
For vehicles with CYMC engine code only

Brand:
Hengst - Corporate Logo
ES#:
3676785
Mfg#:
8W0133843C
In Stock
$24.99

This product was last offered at the strikethrough price on
06-18-2026

$24.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Charge Pipe Kit

ES#3557326 - 021469ecs01aKT - High Flow Charge Pipe Kit - Increase intake air flow with our high flow charge pipes for your OEM intercooler! - ECS - Audi

Increase intake air flow with our high flow charge pipes for your OEM intercooler! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with production date up through 2020

Brand:
ECS - Corporate Logo
ES#:
3557326
Mfg#:
021469ECS01AKT
In Stock
ON SALE! SAVE 25%
$378.99

This product was last offered at the strikethrough price on
06-13-2026

$284.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intake manifold gasket

ES#2594961 - 06K129717A - Intake manifold gasket - Seals your intake manifold to your cylinder head - Genuine Volkswagen Audi - Audi Volkswagen

Seals your intake manifold to your cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2594961
Mfg#:
06K129717A
In Stock
16% off MSRP

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

$53.72

This product was last offered at the strikethrough price on
06-25-2026

$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi & VW Direct Injection Head Port Cleaning Tool

ES#4000805 - 034-108-Z054 - Audi & VW Direct Injection Head Port Cleaning Tool - Makes short and easy work of walnut blasting your intake ports and valves! Works with most universal walnut blasters. - 034Motorsport - Audi Volkswagen

Makes short and easy work of walnut blasting your intake ports and valves! Works with most universal walnut blasters. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4000805
Mfg#:
034-108-Z054
In Stock
$67.00 USD
Free Shipping

Water Pump Belt

ES#3448166 - 06K121605 - Water Pump Belt - Recommended to be replaced with the water pump - Continental - Audi Volkswagen

Recommended to be replaced with the water pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
3448166
Mfg#:
06K121605
In Stock
$26.99

This product was last offered at the strikethrough price on
06-22-2026

$26.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Belt

ES#4818497 - 06K121605 - Water Pump Belt - Recommended to be replaced with the water pump - Bremmen Parts - Audi Volkswagen

Recommended to be replaced with the water pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818497
Mfg#:
06K121605
In Stock
ON SALE! SAVE 13%
$22.99

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

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

Performance Kevlar Reinforced Accessory Belt

ES#4661028 - 6PK1130 - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4661028
Mfg#:
6PK1130
Ships on Aug 3, 2026
Auto Notify
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing chain - upper

ES#4172155 - 06K109158BP - Timing chain - upper - Stop stretched out chains from creating noise - Genuine Volkswagen Audi - Audi Volkswagen

Stop stretched out chains from creating noise affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4172155
Mfg#:
06K109158BP
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.

$244.99

This product was last offered at the strikethrough price on
03-25-2026

$238.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4671694 - 06L121111N - Thermostat - Includes housing and gasket - Genuine Volkswagen Audi - Audi Volkswagen

Includes housing and gasket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4671694
Mfg#:
06L121111N
In Stock
8% off MSRP

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

$536.87

This product was last offered at the strikethrough price on
06-25-2026

$494.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VWR Billet Oil Filler Cap

ES#3188198 - VWR19G702 - VWR Billet Oil Filler Cap - Replace the factory plastic cap with this sturdy aluminum one in gloss midnight black anodizing - Racingline - Audi Volkswagen Porsche

Replace the factory plastic cap with this sturdy aluminum one in gloss midnight black anodizing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles up through the 2020 model year only

Brand:
Racingline - Corporate Logo
ES#:
3188198
Mfg#:
VWR19G702
In Stock
$103.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Baffled Oil Catch Can System

ES#3194688 - 019205ecs01KT - Performance Baffled Oil Catch Can System - Keep your intake tract clean and carbon free - ECS - Audi

Keep your intake tract clean and carbon free affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3194688
Mfg#:
019205ECS01KT
In Stock
ON SALE!
$616.99

This product was last offered at the strikethrough price on
06-13-2026

$586.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Intake System

ES#4500832 - 034-108-1051 - X34 Carbon Fiber Intake System - Delivers improved power, sound, and acceleration in a clean OEM+ package. - 034Motorsport - Audi

Delivers improved power, sound, and acceleration in a clean OEM+ package. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4500832
Mfg#:
034-108-1051
Back Ordered
Auto Notify
$833.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/A5 ECU Cover - Matte Black

ES#3739793 - 028799ECS01 - Audi B9 A4/A5 ECU Cover - Matte Black - Compliment your engine bay and hide away the exposed ECU - ECS - Audi

Compliment your engine bay and hide away the exposed ECU affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3739793
Mfg#:
028799ECS01
In Stock
ON SALE! SAVE 25%
$103.99

This product was last offered at the strikethrough price on
06-13-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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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