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Audi S4 Most Popular Parts

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VWR Billet Fuel Filler Cap - Screw-In Type

ES#4447602 - VWR190000 - VWR Billet Fuel Filler Cap - Screw-In Type - Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! - Racingline - Audi Volkswagen

Beautifully over-engineered in customary RacingLine fashion to give an exquisite feel and beautiful appearance - Make refueling a pleasure! For vehicles with threaded screw-in style gas caps only. Please confirm prior to ordering.

Brand:
Racingline - Corporate Logo
ES#:
4447602
Mfg#:
VWR190000
Ships in 3 Business Days
$137.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Exact-Fit Stainless Steel Brake Lines

ES#3450993 - 024677ECS03 - Front Exact-Fit Stainless Steel Brake Lines - Front set of DOT-compliant lines for an improved pedal feel - ECS - Audi Volkswagen

Front set of DOT-compliant lines for an improved pedal feel 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3450993
Mfg#:
024677ECS03
In Stock
ON SALE! SAVE 10%
$91.99

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

$82.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

73.1-66.6 Hub Centric Rings - Set Of Four

ES#2635457 - AP731666KT - 73.1-66.6 Hub Centric Rings - Set Of Four - Plastic 73.1mm to 66.6mm hub centric rings for proper wheel fitment - ECS - Audi

Plastic 73.1mm to 66.6mm hub centric rings for proper wheel fitment 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2635457
Mfg#:
AP731666KT
In Stock
ON SALE! SAVE 25%
$30.99

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

$23.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Power Steering Banjo Bolt

ES#437075 - 8E0422529 - Power Steering Banjo Bolt - Connects the pressure line to the power steering rack. M14x1.5 - Genuine Volkswagen Audi - Audi Volkswagen

Connects the pressure line to the power steering rack. M14x1.5

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
437075
Mfg#:
8E0422529
In Stock
6% off MSRP

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

$34.99

This product was last offered at the strikethrough price on
11-02-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

18" Alzor Wheel & Tire Package - ET35-38 Offset - 225/40/18 Tires

ES#4623995 - 030CET1WTP - 18" Alzor Wheel & Tire Package - ET35-38 Offset - 225/40/18 Tires - Assembled By ECS - Audi

10X Entries Into Our F80 M3 Sweepstakes
Wheel spacers may be necessary for front caliper clearance

Brand:
Assembled By ECS - Corporate Logo
ES#:
4623995
Mfg#:
030CET1WTP
In Stock
ON SALE! SAVE 34%
$2480.99

This product was last offered at the strikethrough price on
10-08-2026

$1648.99 USD

Fuel Injector Harness - Right

ES#2084809 - 06E971627N - Fuel Injector Harness - Right - Connects the fuel injectors to the main engine harness - Genuine Volkswagen Audi - Audi

Connects the fuel injectors to the main engine harness

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2084809
Mfg#:
06E971627N
Ships in 6 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.

$461.99

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

$411.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Power Steering Flex Pressure Hose

ES#4908394 - 8E0422893N - Power Steering Flex Pressure Hose - Flexible hose that runs between the pump the the rack - Sunsong - Audi

Flexible hose that runs between the pump the the rack

Brand:
Sunsong
ES#:
4908394
Mfg#:
8E0422893N
Ships in 2 Business Days
$105.99

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

$102.99 USD
Free Shipping
on orders $49 and up

Cat-Back Exhaust System

ES#1892708 - 16586 - Cat-Back Exhaust System - 2.5" stainless steel with dual 4" polished stainless tips - Magnaflow - Audi

2.5" stainless steel with dual 4" polished stainless tips

Brand:
Magnaflow - Corporate Logo
ES#:
1892708
Mfg#:
16586
Back Ordered
$1646.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley

ES#2631731 - 06E105251F - Crankshaft Pulley - Reduces vibrations and drives the accessory belt - Genuine Volkswagen Audi - Audi

Reduces vibrations and drives the accessory belt

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2631731
Mfg#:
06E105251F
Ships in 5 Business Days
$820.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intermediate Steering Shaft

ES#4683794 - 8K1419753H - Intermediate Steering Shaft - Connection point between the steering column and the steering rack - Dorman - Audi

Connection point between the steering column and the steering rack

Brand:
Dorman - Corporate Logo
ES#:
4683794
Mfg#:
8K1419753H
Ships in 2 Business Days
$575.99

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

$546.99 USD
Free Shipping
on orders $49 and up

DL501 Ultimate Mechatronic Rebuild Kit

ES#4491453 - 0b5398009fKT - DL501 Ultimate Mechatronic Rebuild Kit - Full kit with all of the required components needed to rebuild your DL501 Transmission - Genuine Volkswagen Audi - Audi

Full kit with all of the required components needed to rebuild your DL501 Transmission For vehicles with 7-speed S-Tronic transmissions

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4491453
Mfg#:
0B5398009FKT
Ships in 1-2 days
$1816.99

This product was last offered at the strikethrough price on
08-11-2026

$1685.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

20" 0.04 - Set Of Four

ES#4414499 - 50605306809KT - 20" 0.04 - Set Of Four - 20"x9.0" ET35 5x112 - Silver/Cut - 3SDM - Audi Volkswagen

20"x9.0" ET35 5x112 - Silver/Cut Wheel spacers may be necessary for front caliper clearance

Brand:
3SDM - Corporate Logo
ES#:
4414499
Mfg#:
50605306809KT
Back Ordered
$1639.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank Cap

ES#3485290 - 2Q0121321A - Coolant Expansion Tank Cap - Keep proper pressure in your coolant system - Genuine Volkswagen Audi - Audi Volkswagen Porsche

Keep proper pressure in your coolant system

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3485290
Mfg#:
2Q0121321A
In Stock
5% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
10-26-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

550cc Fuel Injectors - Set Of Six

ES#2574528 - INJB550KT6 - 550cc Fuel Injectors - Set Of Six - Bosch 550cc EV14 Fuel IOnjectors - Great for stage III 2.7T upgrades. Includes injector plug adapters - Bosch - Audi

Bosch 550cc EV14 Fuel IOnjectors - Great for stage III 2.7T upgrades. Includes injector plug adapters We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2574528
Mfg#:
INJB550KT6
Ships in 10 Business Days
$655.99

This product was last offered at the strikethrough price on
07-06-2026

$545.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4643076 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - URO - Audi Volkswagen

Common cure for DTC P0441 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4643076
Mfg#:
037906283C
In Stock
Limited Qty Sale
$45.99

This product was last offered at the strikethrough price on
06-09-2026

$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Front Control Arm Hardware Kit

ES#4743356 - N10770901KT2 - Complete Front Control Arm Hardware Kit - Includes all of the front control arm securing hardware - Assembled By ECS - Audi

Includes all of the front control arm securing hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4743356
Mfg#:
N10770901KT2
Ships in 1-2 days
ON SALE! SAVE 25%
$217.99

This product was last offered at the strikethrough price on
09-29-2026

$163.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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