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Audi S4 Engine Parts & Accessories

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APR Upgraded Ignition Coils - Red - Set Of Six

ES#4030593 - ms100192KT2 - APR Upgraded 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! - APR - Audi

Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! Call In Or Chat For Best Price!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
4030593
Mfg#:
MS100192KT2
EO#:
D-783-5
In Stock
ON SALE! SAVE 10%
$317.99

This product was last offered at the strikethrough price on
09-28-2026

$285.93 USD
Free Shipping
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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3640324
Mfg#:
06M145710F
Ships in 9 Business 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
10-22-2026

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

EA839 2.9T/3.0T Billet Oil Filter Housing - Black

ES#3504941 - 024354ECS01-01 - EA839 2.9T/3.0T Billet Oil Filter Housing - Black - Ditch the easily broken/stripped plastic oil filter cap for a durable billet upgrade - ECS - Audi

Ditch the easily broken/stripped plastic oil filter cap for a durable billet upgrade 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3504941
Mfg#:
024354ECS01-01
In Stock
ON SALE! SAVE 27%
$136.99

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

$99.46 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump

ES#3679588 - 06E121018K - Water Pump - New water pump with coolant housing, does not include pulley - Genuine Volkswagen Audi - Audi Volkswagen

New water pump with coolant housing, does not include pulley Fits from the 2013 model year (facelift)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3679588
Mfg#:
06E121018K
Ships in 1 day
14% off MSRP

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

$311.67

This product was last offered at the strikethrough price on
10-22-2026

$269.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Bolt - Set Of 14

ES#4765688 - 06B103831J-14 - Valve Cover Bolt - Set Of 14 - Full set used to secure the valve cover to the cylinder head - Bremmen Parts - Audi Volkswagen

Full set used to secure the valve cover to the cylinder head 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4765688
Mfg#:
06B103831J-14
In Stock
ON SALE! SAVE 15%
$88.99

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

$75.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B6 S4 Catback Exhaust

ES#4756568 - 041486ECS01 - Audi B6 S4 Catback Exhaust - Choose your own configuration along with your choice of exhaust tips and more! - ECS - Audi

Choose your own configuration along with your choice of exhaust tips and more! 10X Entries Into Our F80 M3 Sweepstakes

For Sedan models only.

Brand:
ECS - Corporate Logo
ES#:
4756568
Mfg#:
041486ECS01
Ships in 4 Business Days
ON SALE!
Starting at $833.33 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi & VW Direct Injection Carbon Cleaning Kit - Level 1

ES#4000811 - 034-108-Z054KT - Audi & VW Direct Injection Carbon Cleaning Kit - Level 1 - Featuring Bimmerhelp's direct injection port cleaning tool, walnut shell blast media (15lbs), and a 'blast out of a bucket' media blaster attachment - Assembled By ECS - Audi Volkswagen

Featuring Bimmerhelp's direct injection port cleaning tool, walnut shell blast media (15lbs), and a 'blast out of a bucket' media blaster attachment 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4000811
Mfg#:
034-108-Z054KT
Back Ordered
ON SALE!
$208.31 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

High Performance B5 S4 All Aluminum Radiator

ES#3220600 - 7071 - High Performance B5 S4 All Aluminum Radiator - Great option if youre looking to modify, upgrade, or simply keep up with the maintenance - CSF - Audi

Great option if you’re looking to modify, upgrade, or simply keep up with the maintenance 2X Entries Into Our F80 M3 Sweepstakes
Fits manual transmission models only

Brand:
CSF - Corporate Logo
ES#:
3220600
Mfg#:
7071
In Stock
$559.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Purge Control Valve Solenoid Valve

ES#3693642 - 06M133240CG - Purge Control Valve Solenoid Valve - Rear most purge Valve and line with T fitting that connects to the turbo and non-return-valve - Genuine Volkswagen Audi - Audi

Rear most purge Valve and line with T fitting that connects to the turbo and non-return-valve

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3693642
Mfg#:
06M133240CG
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.

$158.99

This product was last offered at the strikethrough price on
10-22-2026

$155.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4759993 - 06E121111AL - Thermostat - Includes sealing gasket and housing - Bremmen Parts - Audi Volkswagen

Includes sealing gasket and housing 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759993
Mfg#:
06E121111AL
In Stock
ON SALE! SAVE 12%
$50.99

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

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

Dual Pulley Hardware Kit -190mm

ES#4858461 - 034-145-Z047 - Dual Pulley Hardware Kit -190mm - Increase supercharger rotational speed to provide more boost to your engine. - 034Motorsport - Audi

Increase supercharger rotational speed to provide more boost to your engine. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858461
Mfg#:
034-145-Z047
In Stock
$692.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant Pipe - Supply

ES#4845326 - 06E121045BB - Coolant Pipe - Supply - Main supply pipe that connects to the upper radiator hose and the engine - URO - Audi

Main supply pipe that connects to the upper radiator hose and the engine 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
From the 2013 model year

Brand:
URO - Corporate Logo
ES#:
4845326
Mfg#:
06E121045BB
In Stock
$90.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Endurance Series AGM Battery- B49-H8-L5

ES#3617596 - B10049 - Endurance Series AGM Battery- B49-H8-L5 - Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications. - Braille - Audi BMW

Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications. This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shipping

Brand:
Braille - Corporate Logo
ES#:
3617596
Mfg#:
B10049
In Stock
$446.99 USD
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Turbo Inlet Pipe

ES#4620408 - 034-108-5012 - 034Motorsport Turbo Inlet Pipe - Optimize power by eliminating a critical flow restriction in the intake tract - 034Motorsport - Audi

Optimize power by eliminating a critical flow restriction in the intake tract 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4620408
Mfg#:
034-108-5012
In Stock
$153.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Kit - Priced Each

ES#12097 - 06E115562A - Oil Filter Kit - Priced Each - Keep debris out of your oil and keep your engine running healthy - Hengst - Audi
ECS Tuning recommends this product.

Keep debris out of your oil and keep your engine running healthy 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
12097
Mfg#:
06E115562A
In Stock
$12.99 USD
Free Shipping
on orders $49 and up

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! 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
In Stock
$159.00 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.

Let us help you find the parts that fit your Audi

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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