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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Parts & Accessories

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Basic Oil Separator/Pressure Control Valve (PCV) Service Kit

ES#4781296 - 06M103515HKT - Basic Oil Separator/Pressure Control Valve (PCV) Service Kit - Replace your leaking PCV - Assembled By ECS - Audi Porsche

Replace your leaking PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4781296
Mfg#:
06M103515HKT
In Stock
ON SALE!
$132.99

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

$124.14 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B9 S4/S5 Turbo Inlet Pipe

ES#4419077 - IEINCK4 - B9 S4/S5 Turbo Inlet Pipe - Take full advantage of all available space with a unique shape to maximize airflow! - Integrated Engineering - Audi

Take full advantage of all available space with a unique shape to maximize airflow! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4419077
Mfg#:
IEINCK4
In Stock
$177.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - 6 Bolt

ES#4900410 - 06M121013G - Water Pump - 6 Bolt - New water pump. Does not include pulley - Genuine Volkswagen Audi - Audi

New water pump. Does not include pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4900410
Mfg#:
06M121013G
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.

$236.99

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

$232.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Density Transmission Mount

ES#3199888 - 0345094025 - Street Density Transmission Mount - Improve the performance of the factory transmission mount - 034Motorsport - Audi

Improve the performance of the factory transmission mount affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 8-Speed Automatic Transmission

Brand:
034Motorsport - Corporate Logo
ES#:
3199888
Mfg#:
0345094025
In Stock
ON SALE! SAVE 10%
$44.00

This product was last offered at the strikethrough price on
06-28-2026

$39.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JB4 Bluetooth Wireless Connect Kit - Pinned Power Wire

ES#3514868 - JB4-SPWCK-F - JB4 Bluetooth Wireless Connect Kit - Pinned Power Wire - Wirelessly connect your JB4 to your phone! - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz

Wirelessly connect your JB4 to your phone! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
For use with JB4 only

Brand:
Burger Motorsports - Corporate Logo
ES#:
3514868
Mfg#:
JB4-SPWCK-F
Ships in 4 Business Days
$159.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve

ES#3640324 - 06M145710F - Diverter Valve - Cure the boost leak and restore power - Genuine Volkswagen Audi - Audi

Cure the boost leak and restore power affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3640324
Mfg#:
06M145710F
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.

$178.33

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

$160.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4 Transmission Street Shield Aluminum Skid Plate

ES#3979295 - 027567ecs01KT - Audi B9 A4/S4 Transmission Street Shield Aluminum Skid Plate - Protect your transmission pan and improve aerodynamics - ECS - Audi

Protect your transmission pan and improve aerodynamics affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3979295
Mfg#:
027567ECS01KT
In Stock
ON SALE! SAVE 15%
$354.99

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

$301.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Catch Can Kit - EA839 S4/S5

ES#4849699 - 034-101-1016 - 034Motorsport Catch Can Kit - EA839 S4/S5 - Engineered for enhanced durability to capture crankcase oil deposits before entering your intake tract - 034Motorsport - Audi

Engineered for enhanced durability to capture crankcase oil deposits before entering your intake tract affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4849699
Mfg#:
034-101-1016
Ships on Aug 31, 2026
Auto Notify
ON SALE! SAVE 10%
$729.00

This product was last offered at the strikethrough price on
06-28-2026

$656.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Iridium Pro Spark Plugs - Priced Each

ES#4905500 - Z1004081 - APR Iridium Pro Spark Plugs - Priced Each - Designed for high performance / tuned vehicle applications - APR - Audi Porsche

Designed for high performance / tuned vehicle applications 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#:
4905500
Mfg#:
Z1004081
In Stock
13% off MSRP

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

$30.99

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

$26.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Coils - Red - Set Of Six

ES#4686053 - 002540LCA03KT - ECS Performance Ignition Coils - Red - Set Of Six - Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! - ECS - Audi

Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4686053
Mfg#:
002540LCA03KT
In Stock
ON SALE! SAVE 20%
$281.99

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

$225.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE TrueFlex Sensor Kit For Audi B9 S4, S5, SQ5

ES#4830270 - IEELCK2 - IE TrueFlex Sensor Kit For Audi B9 S4, S5, SQ5 - Plug-&-play kit for iE B9/B9.5 3.0T TrueFlex Tunes - Integrated Engineering - Audi

Plug-&-play kit for iE B9/B9.5 3.0T TrueFlex Tunes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4830270
Mfg#:
IEELCK2
In Stock
$461.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Carbon Fiber Engine Cover

ES#4690740 - MS100255 - APR Carbon Fiber Engine Cover - A full carbon fiber engine cover to enhance your engine bay! - APR - Audi

A full carbon fiber engine cover to enhance your engine bay! 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#:
4690740
Mfg#:
MS100255
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.

$1068.99

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

$949.99 USD
Free Shipping

ECS Tuning Billet Engine Oil Dipstick - Polished

ES#3545564 - 023954ECS01-01 - ECS Tuning Billet Engine Oil Dipstick - Polished - A beautiful addition and durable upgrade for your engine - ECS - Audi

A beautiful addition and durable upgrade for your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3545564
Mfg#:
023954ECS01-01
In Stock
ON SALE! SAVE 25%
$100.99

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

$75.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Kit - Priced Each

ES#4017143 - 06M198405F - Oil Filter Kit - Priced Each - Keep debris out of your oil and keep your engine running healthily - Hengst - Audi Porsche
ECS Tuning recommends this product.

Keep debris out of your oil and keep your engine running healthily 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!

Brand:
Hengst - Corporate Logo
ES#:
4017143
Mfg#:
06M198405F
In Stock
$17.99

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

$17.35 USD
Free Shipping
on orders $49 and up

Ultimate Water Pump Kit

ES#5434868 - 06M121013GKT - Ultimate Water Pump Kit - Keep your cooling system running properly - Genuine Volkswagen Audi - Audi

Keep your cooling system running properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes Updated 6-Bolt Water Pump and Pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5434868
Mfg#:
06M121013GKT
Ships in 3 Business Days
$1050.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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 8 Business Days
$349.99 USD
Free Shipping
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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