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Audi S4 Most Popular Parts

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High Pressure Fuel Pump Kit

ES#5424543 - 07L127026AKKT - High Pressure Fuel Pump Kit - Includes HPFP, Fuel Pump Cam Follower, and Hardware - Assembled By ECS - Audi Volkswagen

Includes HPFP, Fuel Pump Cam Follower, and Hardware 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#:
5424543
Mfg#:
07L127026AKKT
Ships in 2 Business Days
$948.99

This product was last offered at the strikethrough price on
03-24-2026

$628.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Upgrade Kit

ES#3647325 - IEINCG3 - Throttle Body Upgrade Kit - Remove the final power restriction on your 3.0T with an over 20% higher flowing throttle body, fully releasing the complete power potential from your factory supercharger. - Integrated Engineering - Audi

Remove the final power restriction on your 3.0T with an over 20% higher flowing throttle body, fully releasing the complete power potential from your factory supercharger. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
* Existing IE Dual Pulley Upgrade Required *

Brand:
Integrated Engineering - Corporate Logo
ES#:
3647325
Mfg#:
IEINCG3
In Stock
$879.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Check Valve - priced each

ES#277759 - 059103175F - Oil Pressure Check Valve - priced each - Located under the cylinder block ventilation cover - Genuine Volkswagen Audi - Audi

Located under the cylinder block ventilation cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277759
Mfg#:
059103175F
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.

$123.32

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

$107.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Sport Shock - Priced Each

ES#2533020 - 80401402Sport - Rear Sport Shock - Priced Each - Improve the way your Audi responds on the road - Koni - Audi Porsche

Improve the way your Audi responds on the road affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Koni - Corporate Logo
ES#:
2533020
Mfg#:
80401402SPORT
In Stock at Vendor
ON SALE! SAVE 20%
$203.99

This product was last offered at the strikethrough price on
02-27-2026

$162.23 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport 3.0T Supercharger Pulley Upgrade

ES#3432403 - 034-145-Z034 - 034Motorsport 3.0T Supercharger Pulley Upgrade - Increased horsepower and torque throughout the powerband when paired with Stage 2 Performance Software. - 034Motorsport - Audi

Increased horsepower and torque throughout the powerband when paired with Stage 2 Performance Software. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*3.0 TFSI Performance Software is sold separately and required in order for this pulley to yield a performance benefit.*

Brand:
034Motorsport - Corporate Logo
ES#:
3432403
Mfg#:
034-145-Z034
In Stock
$199.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

18" Style 010 Wheels - Set Of Four

ES#2695646 - 010-26KT1 - 18" Style 010 Wheels - Set Of Four - 18x8 ET28 5x112 66.6CB - Silver With Machined Lip - Alzor - Audi

18x8 ET28 5x112 66.6CB - Silver With Machined Lip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Wheel spacers may be necessary for front caliper clearance.

Brand:
Alzor - Corporate Logo
ES#:
2695646
Mfg#:
010-26KT1
In Stock
ON SALE! SAVE 25%
$1166.99

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

$875.01 USD
Free Shipping

18" Style 881 Wheels - Set Of Four

ES#2695514 - 881-10KT2 - 18" Style 881 Wheels - Set Of Four - 18x8.5 ET35 5x112 66.6CB - Gold With Machined Lip - Alzor - Audi MINI

18x8.5 ET35 5x112 66.6CB - Gold With Machined Lip affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Wheel spacers may be necessary for front caliper clearance.

Brand:
Alzor - Corporate Logo
ES#:
2695514
Mfg#:
881-10KT2
Ships on Jul 29, 2026
Auto Notify
ON SALE! SAVE 25%
$1166.99

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

$875.01 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - black

ES#279800 - 06A919081J - Oil Pressure Switch - black - Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR - Genuine Volkswagen Audi - Audi Volkswagen

Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
279800
Mfg#:
06A919081J
In Stock
27% off MSRP

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

$50.81

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

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Iridium Pro Spark Plug - Priced Each

ES#4616175 - Z1003101 - APR Iridium Pro Spark Plug - Priced Each - 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#:
4616175
Mfg#:
Z1003101
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.

$23.01

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

$20.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B8 A4/S4 Carbon Fiber Grille Accent Set - Pre Facelift

ES#3638709 - 027538ECS01 - Audi B8 A4/S4 Carbon Fiber Grille Accent Set - Pre Facelift - Hand-laid carbon fiber to upgrade your exterior styling - ECS - Audi

Hand-laid carbon fiber to upgrade your exterior styling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Fits Pre-Facelift models up to the 2012 model year

Brand:
ECS - Corporate Logo
ES#:
3638709
Mfg#:
027538ECS01
In Stock
ON SALE! SAVE 34%
$546.99

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

$362.75 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Density Line Street Density Motor Mount - Priced Each

ES#3183549 - 034-509-0008-SD - Density Line Street Density Motor Mount - Priced Each - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3183549
Mfg#:
034-509-0008-SD
In Stock
$128.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Cross Drilled UV Coated Brake Rotors - Pair (330x22)

ES#4491560 - 8k0615601cxKT - Rear Cross Drilled UV Coated Brake Rotors - Pair (330x22) - Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. - Brembo - Audi

Features Brembo's special UV paint treatment that guarantees superior corrosion resistance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Brembo - Corporate Logo
ES#:
4491560
Mfg#:
8K0615601CXKT
Ships in 3 Business Days
$422.99

This product was last offered at the strikethrough price on
01-21-2026

$289.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Diverter Valve

ES#2862879 - CTSDV0005 - Billet Diverter Valve - Keep your turbo boosting like it should - CTS - Audi Volkswagen

Keep your turbo boosting like it should affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
2862879
Mfg#:
CTSDV0005
Ships in 7 Business Days
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Axle Assembly - Left

ES#4057713 - 8D0407271AR - Front Axle Assembly - Left - A complete driveshaft with CV joints, ready for installation - TrakMotive - Audi

A complete driveshaft with CV joints, ready for installation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TrakMotive - Corporate Logo
ES#:
4057713
Mfg#:
8D0407271AR
Ships in 1 Business Day
$153.99

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

$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

B8/C7 Center Differential Delete - NO WELDING NEEDED

ES#4375353 - 012535LA01 - B8/C7 Center Differential Delete - NO WELDING NEEDED - Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro - ECS - Audi

Easily allows the removal of center differential when converting your B8 S4 to RWD (rear wheel drive) from Quattro affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
100% reversible RWD kit when paired with our Axle Delete Plugs (ES4373491) Please make sure via VIN that

Brand:
ECS - Corporate Logo
ES#:
4375353
Mfg#:
012535LA01
Ships on Jul 6, 2026
Auto Notify
ON SALE! SAVE 20%
$452.99

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

$362.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Washer Fluid Reservoir Cap - Black

ES#2804144 - 1K0955455 - Washer Fluid Reservoir Cap - Black - Set your engine bay apart from the rest with a black washer reservoir cap to replace the old blue one - Bremmen Parts - Audi Volkswagen

Set your engine bay apart from the rest with a black washer reservoir cap to replace the old blue one affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
2804144
Mfg#:
1K0955455
In Stock
ON SALE! SAVE 44%
$29.99

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

$16.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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