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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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VW/Audi Atmospheric Diverter Valve Spacer - Clear

ES#3551290 - 025254ECS01-02 - VW/Audi Atmospheric Diverter Valve Spacer - Clear - Let your turbo blow off some air for an exhilarating driving experience! - ECS - Audi Volkswagen

Let your turbo blow off some air for an exhilarating driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits models with OEM DV part numbers 06H145710J, 06H145710C, 06H145710E. Please verify before ordering.

Brand:
ECS - Corporate Logo
ES#:
3551290
Mfg#:
025254ECS01-02
In Stock
ON SALE! SAVE 25%
$83.99

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

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Replacement 5" Air Filter For IE Intake Kits

ES#3177923 - IEINCC1-3A - IE Replacement 5" Air Filter For IE Intake Kits - This is a direct replacement filter for all IE cold air intakes with a 5" velocity stack on the heat shield. This filter is used on the majority of all IE intakes. - Integrated Engineering - Audi Volkswagen

This is a direct replacement filter for all IE cold air intakes with a 5" velocity stack on the heat shield. This filter is used on the majority of all IE intakes. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3177923
Mfg#:
IEINCC1-3A
In Stock
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Main Seal Upgrade

ES#3470640 - 462-103-171F - Billet Aluminum Rear Main Seal Upgrade - Permanent fix for that leaking rear main seal - iABED Industries - Audi Volkswagen

Permanent fix for that leaking rear main seal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
iABED Industries - Corporate Logo
ES#:
3470640
Mfg#:
462-103-171F
Back Ordered
Auto Notify
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Brisk Silver Racing ER12S Spark Plug - Priced Each

ES#3521624 - ER12S - Brisk Silver Racing ER12S Spark Plug - Priced Each - Featuring silver fine wire center electrode - Superior ignition ability increases engine power! - Brisk - Audi Volkswagen Mercedes Benz

Featuring silver fine wire center electrode - Superior ignition ability increases engine power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
One heat range colder than stock with a non-projected tip

Brand:
Brisk - Corporate Logo
ES#:
3521624
Mfg#:
ER12S
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.

$12.99

This product was last offered at the strikethrough price on
06-24-2026

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

Iridium Racing Spark Plugs - Priced Each

ES#4765800 - IKH01-27 - Iridium Racing Spark Plugs - Priced Each - An excellent upgrade for tuned engines. 14X26.5X16mm (Denso #: 5750) - Denso - Audi Volkswagen Porsche

An excellent upgrade for tuned engines. 14X26.5X16mm (Denso #: 5750) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Denso - Corporate Logo
ES#:
4765800
Mfg#:
IKH01-27
In Stock
$54.99

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

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Engine oil Dipstick - black Anodized

ES#3138259 - 018641ECS02-02 - Billet Engine oil Dipstick - black Anodized - A more durable and aesthetically pleasing addition to your engine bay - ECS - Audi

A more durable and aesthetically pleasing addition to your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with production date up to04/09/2021

Brand:
ECS - Corporate Logo
ES#:
3138259
Mfg#:
018641ECS02-02
In Stock
ON SALE! SAVE 25%
$113.99

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

$85.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/PCV Valve

ES#3571736 - 06K103495BL - Oil Separator/PCV Valve - Also called the "breather valve" or "oil separator" - Genuine Volkswagen Audi - Audi Volkswagen

Also called the "breather valve" or "oil separator" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with CYMC engine code only

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3571736
Mfg#:
06K103495BL
In Stock
12% off MSRP

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

$250.00

This product was last offered at the strikethrough price on
06-24-2026

$220.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain - Upper

ES#2959852 - 06K109158AD - Timing Chain - Upper - Stop stretched out chains from creating noise - Febi - Audi Volkswagen

Stop stretched out chains from creating noise affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2959852
Mfg#:
06K109158AD
In Stock at Vendor
$111.81

This product was last offered at the strikethrough price on
06-24-2026

$111.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Adjuster Valve Unit - Priced Each

ES#4817699 - 06L109257F - Camshaft Adjuster Valve Unit - Priced Each - Controls the flow of oil for the camshaft adjuster - Febi - Audi Volkswagen

Controls the flow of oil for the camshaft adjuster affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up through 6/13/2016 only

Brand:
Febi - Corporate Logo
ES#:
4817699
Mfg#:
06L109257F
In Stock
$87.99

This product was last offered at the strikethrough price on
03-29-2026

$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/ Pressure Control Valve (PCV)

ES#4897813 - 06Q103495G - Oil Separator/ Pressure Control Valve (PCV) - Located on top of your valve cover - Genuine Volkswagen Audi - Audi Volkswagen

Located on top of your valve cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Face-lift models (2020+) with DPAA engine code

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4897813
Mfg#:
06Q103495G
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.

$112.99

This product was last offered at the strikethrough price on
06-24-2026

$110.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Tensioner - Upper

ES#3220561 - 06K109467K - Timing Chain Tensioner - Upper - For the camshaft chain and located near the left guide rail - Bremmen Parts - Audi Volkswagen

For the camshaft chain and located near the left guide rail affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3220561
Mfg#:
06K109467K
In Stock
ON SALE! SAVE 15%
$63.99

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

$54.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Res-X Resonator Delete

ES#3426672 - 034-105-7044 - 034Motorsport Res-X Resonator Delete - Unleashes a throaty growl and exotic tone that exudes the sound of performance - Deletes front-most resonator - 034Motorsport - Audi

Unleashes a throaty growl and exotic tone that exudes the sound of performance - Deletes front-most resonator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3426672
Mfg#:
034-105-7044
In Stock
$222.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Turbo Muffler Delete With Test Ports

ES#3610622 - 034-145-Z040 - 034Motorsport Turbo Muffler Delete With Test Ports - Lets the driver hear what the turbo has to say - The only turbo muffler delete with built-in test ports! - 034Motorsport - Audi Volkswagen

Lets the driver hear what the turbo has to say - The only turbo muffler delete with built-in test ports! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles pre-facelift models only (through 2020)

Brand:
034Motorsport - Corporate Logo
ES#:
3610622
Mfg#:
034-145-Z040
In Stock
$140.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Sport Motor Mounts

ES#4830891 - CTS-EM-MQL-60D - Street Sport Motor Mounts - Redefine the balance between comfort and performance - CTS - Audi

Redefine the balance between comfort and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4830891
Mfg#:
CTS-EM-MQL-60D
Ships in 7 Business Days
$349.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Repair Kit (06J998907D)

ES#4766163 - 06J998907D - Fuel Injector Repair Kit (06J998907D) - One kit required per injector - Bremmen Parts - Audi Volkswagen Porsche

One kit required per injector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766163
Mfg#:
06J998907D
In Stock
ON SALE! SAVE 10%
$10.99

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

$9.89 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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