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Audi S4 Service & Maintenance Parts

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APR Upgraded Ignition Coil - Grey - Priced Each

ES#4164358 - MS100203 - APR Upgraded Ignition Coil - Grey - Priced Each - 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 Volkswagen Porsche

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!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
4164358
Mfg#:
MS100203
EO#:
D-783-5
In Stock
12% off MSRP

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

$57.95

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

$51.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Upgraded Ignition Coil - Blue - Set of Six

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!

Brand:
APR - Corporate Logo
ES#:
4376596
Mfg#:
MS100210-6KT
In Stock
$214.92 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Oil Filter Housing - EA839 2.9T/3.0T

ES#4505824 - 034-110-9003 - Billet Oil Filter Housing - EA839 2.9T/3.0T - CNC machined from 6061-T6 aluminum and anodized bright black for lifelong great looks - 034Motorsport - Audi

CNC machined from 6061-T6 aluminum and anodized bright black for lifelong great looks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4505824
Mfg#:
034-110-9003
In Stock
$143.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Drop In Replacement Air Filter

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

Timing Belt Kit - Ultimate with Gates Racing Timing Belt

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

$354.93 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Power Stop Z26 Street Warrior Front & Rear Brake Kit (345mm/330mm)

ES#3990097 - K6141-26 - Power Stop Z26 Street Warrior Front & Rear Brake Kit (345mm/330mm) - A complete 4-wheel performance brake upgrade featuring drilled & slotted rotors and high-performance carbon-fiber ceramic pads. - Power Stop - Audi

A complete 4-wheel performance brake upgrade featuring drilled & slotted rotors and high-performance carbon-fiber ceramic pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Models with 345mm Front & 330mm Rear Rotors

Brand:
Power Stop - Corporate Logo
ES#:
3990097
Mfg#:
K6141-26
Ships in 2 Business Days
$695.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - 4 Bolt

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

Performance Ignition Service Kit

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 .024�

Brand:
Assembled By ECS - Corporate Logo
ES#:
4361437
Mfg#:
101905631GKT6
In Stock
$220.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Wheel Bearing And Hub Assembly Kit

ES#2826409 - 008442ecs01KT - Front Wheel Bearing And Hub Assembly Kit - Includes the left and right side bearing and hub pressed together for you! - Assembled By ECS - Audi

Includes the left and right side bearing and hub pressed together for you! 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#:
2826409
Mfg#:
008442ECS01KT
In Stock at Vendor
ON SALE!
$276.99

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

$255.58 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Magnetic Drain/Fill Plug - Priced Each

ES#2538104 - 000857ECS01A - Magnetic Drain/Fill Plug - Priced Each - Capture harmful particles to prevent wear. M22x1.5 - ECS - Audi Volkswagen Porsche

Capture harmful particles to prevent wear. M22x1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For the rear differential - Used as both drain & fill plugs

Brand:
ECS - Corporate Logo
ES#:
2538104
Mfg#:
000857ECS01A
Ships on Aug 14, 2026
Auto Notify
ON SALE! SAVE 40%
$39.99

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

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Iridium Pro Spark Plug - Set Of Six

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

Power Stop Z23 Evolution Sport Front Brake Kit (345mm)

ES#3194981 - K6140 - Power Stop Z23 Evolution Sport Front Brake Kit (345mm) - A performance front-wheel brake upgrade featuring drilled & slotted rotors and low-dust carbon-fiber ceramic pads. - Power Stop - Audi

A performance front-wheel brake upgrade featuring drilled & slotted rotors and low-dust carbon-fiber ceramic pads. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Power Stop - Corporate Logo
ES#:
3194981
Mfg#:
K6140
Ships in 1 Business Day
$374.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Cabin Air Filter - Priced Each

ES#4829743 - 4M0819439C - Cabin Air Filter - Priced Each - Genuine Volkswagen Audi - Audi

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4829743
Mfg#:
4M0819439C
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.

$57.99

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

$56.99 USD
Free Shipping
on orders $49 and up

Timing Belt Kit - Ultimate

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

Water Pump Kit

ES#4690680 - 06M121013DKT - Water Pump Kit - Maintain proper operating temperature with a new water pump and hardware - Genuine Volkswagen Audi - Audi

Maintain proper operating temperature with a new water pump and hardware 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#:
4690680
Mfg#:
06M121013DKT
In Stock
$526.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

More About Service & Maintenance Parts

Good maintenance should never be viewed as an expense. It is an investment that maintains the value and dependability of your car, extends its service life, and increases its resale value. Affordable fluids and filters are all here, with many tutorials demonstrating how easy it is to keep your car running strong.

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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