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Audi S4 Engine Parts & Accessories

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ES#3623934 - 015339ecs02aKT - Audi 3.0T Carbon Fiber Engine Cover Kit - Red - Add a touch of red carbon/kevlar to your stock engine cover! - ECS - Audi

Add a touch of red carbon/kevlar to your stock engine cover! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3623934
Mfg#:
015339ECS02AKT
In Stock
ON SALE!
$410.99

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

$390.44 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4419105 - CTS-IGN-006 - CTS High Performance Ignition Coil  - These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it™s peak performance. - CTS - Audi Volkswagen

These are the perfect replacement or upgrade to your FSI/TSI/TFSI engine to keep it running at it’s peak performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4419105
Mfg#:
CTS-IGN-006
In Stock
$29.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4376596 - MS100210-6KT - APR Upgraded Ignition Coil - Blue - 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

To be used with the 2.0T coil pack conversion kits.

Brand:
APR - Corporate Logo
ES#:
4376596
Mfg#:
MS100210-6KT
In Stock
$214.92 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
ES#3612228 - f21btceramic - F21 Hybrid Turbochargers (With 2-Pass Ceramic Coating)  - Complete bolt on Turbo upgrade including turbo inlet pipes - FrankenTurbo - Audi

Complete bolt on Turbo upgrade including turbo inlet pipes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FrankenTurbo - Corporate Logo
ES#:
3612228
Mfg#:
F21BTCERAMIC
Ships on Jun 30, 2026
$2099.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2832685 - 8K0201550N - Gas Cap - Includes seal and retaining strap - Genuine Volkswagen Audi - Audi

Includes seal and retaining strap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2832685
Mfg#:
8K0201550N
In Stock
9% off MSRP

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

$73.33

This product was last offered at the strikethrough price on
02-03-2026

$66.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4699390 - 06M121013D - Water Pump - 4 Bolt  - New 4 bolt water pump. Does not include pulley - Hepu - Audi Porsche

New 4 bolt water pump. Does not include pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hepu - Corporate Logo
ES#:
4699390
Mfg#:
06M121013D
In Stock
$274.99

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

$260.99 USD
Free Shipping
on orders $49 and up
ES#8818 - DV100001 - Billet R1 Diverter Valve - Priced Each - Less maintenance, more boost - APR - Audi Volkswagen Porsche

Less maintenance, more boost 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!

2 required

Brand:
APR - Corporate Logo
ES#:
8818
Mfg#:
DV100001
In Stock
11% off MSRP

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

$316.99

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

$280.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4642770 - IEFUVO1 - IE 3.0T High Pressure Fuel Pump (HPFP) Internal Upgrade Kit - IE's HPFP internals upgrade kit for the Audi 3.0TFSI Supercharged engines is perfect for the DIY user looking to upgrade their factory-equipped HPFP pump body with new higher flowing internals - Integrated Engineering - Audi

IE's HPFP internals upgrade kit for the Audi 3.0TFSI Supercharged engines is perfect for the DIY user looking to upgrade their factory-equipped HPFP pump body with new higher flowing internals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4642770
Mfg#:
IEFUVO1
In Stock
$472.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4616192 - z1003101-6KT - APR Iridium Pro Spark Plug - Set Of Six - An excellent upgrade for tuned engines. 14X19X16mm - Heat Range 9 - APR - Audi Volkswagen Porsche

An excellent upgrade for tuned engines. 14X19X16mm - Heat Range 9 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#:
4616192
Mfg#:
Z1003101-6KT
In Stock
$125.70

This product was last offered at the strikethrough price on
01-26-2026

$122.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2576 - 078198479 V2TT - Timing Belt Kit - Ultimate - Complete kit to service your timing belt, water pump, and thermostat - Assembled By ECS - Audi

Complete kit to service your timing belt, water pump, and thermostat 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#:
2576
Mfg#:
078198479 V2TT
In Stock
ON SALE!
$223.99

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

$204.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4361437 - 101905631GKT6 - Performance Ignition Service Kit - Includes six Bremi red coil packs and six NGK spark plugs to service your ignition - Assembled By ECS - Audi

Includes six Bremi red coil packs and six NGK spark plugs to service your ignition affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Recommended to be used by various tuners when paired with performance software - recommended gap of .024â

Brand:
Assembled By ECS - Corporate Logo
ES#:
4361437
Mfg#:
101905631GKT6
In Stock at Vendor
$220.99

This product was last offered at the strikethrough price on
06-12-2026

$210.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3676784 - 8W0133843 - 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!

Brand:
Hengst - Corporate Logo
ES#:
3676784
Mfg#:
8W0133843
In Stock
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2777124 - 078198479KT2 - Timing Belt Kit - Ultimate with Gates Racing Timing Belt - Complete kit to service your timing belt, water pump, and thermostat - Assembled By ECS - Audi

Complete kit to service your timing belt, water pump, and thermostat 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#:
2777124
Mfg#:
078198479KT2
In Stock
ON SALE!
$379.99

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

$355.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2710 - 078965561 - Auxiliary Water Pump - Secondary pump for more efficient cooling - Bosch - Audi Volkswagen

Secondary pump for more efficient cooling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2710
Mfg#:
078965561
In Stock
$133.99

This product was last offered at the strikethrough price on
03-17-2026

$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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

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

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