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Audi S4 Engine Parts & Accessories

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Hex Bolt - Priced Each

ES#471823 - N91071701 - Hex Bolt - Priced Each - Install new hardware with your new parts. M6x25 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x25 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the left Combi valve to the engine

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471823
Mfg#:
N91071701
In Stock
33% off MSRP

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

$2.94

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

$1.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport High Output Ignition Coil - Red - Priced Each

ES#4620394 - 034-107-2012-RED - 034Motorsport High Output Ignition Coil - Red - Priced Each - Plug-and-play upgraded coil pack featuring a CNC-machined heat sink for better heat dissipation - 034Motorsport - Audi Volkswagen Porsche

Plug-and-play upgraded coil pack featuring a CNC-machined heat sink for better heat dissipation affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4620394
Mfg#:
034-107-2012-RED
In Stock
$63.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#4818410 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818410
Mfg#:
037906283C
In Stock
ON SALE! SAVE 15%
$45.99

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

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

Audi B9 S4/S5 3.0T Kohlefaser Luft-Technik Intake System

ES#3545247 - 023796ECS04 - Audi B9 S4/S5 3.0T Kohlefaser Luft-Technik Intake System - Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Carbon Fiber Cold Air Intake - ECS - Audi

Enhance your engine's performance with gains up to 16 Wheel Horsepower and 15 foot pounds of torque with our ECS Carbon Fiber Cold Air Intake affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3545247
Mfg#:
023796ECS04
In Stock
ON SALE! SAVE 15%
$998.99

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

$849.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Piston Ring Set - Priced Each

ES#2303 - 06B198151B - Piston Ring Set - Priced Each - One set required per piston - Goetze - Audi Volkswagen

One set required per piston affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Goetze - Corporate Logo
ES#:
2303
Mfg#:
06B198151B
In Stock
$51.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body

ES#4494226 - 06M133062L - Throttle Body - Complete throttle body unit - Genuine Volkswagen Audi - Audi

Complete throttle body unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4494226
Mfg#:
06M133062L
Ships in 1-2 days
8% off MSRP

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

$658.99

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

$602.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2435 - 1K0998262AB - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Bosch - Audi Volkswagen

Keep your engine running efficiently affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Fits left and right rear position

Brand:
Bosch - Corporate Logo
ES#:
2435
Mfg#:
1K0998262AB
In Stock at Vendor
$180.99

This product was last offered at the strikethrough price on
02-21-2026

$144.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6 S4 Muffler Delete Kit - With 4.0" Black Chrome Tips

ES#4660138 - 042002la01KT - B6 S4 Muffler Delete Kit - With 4.0" Black Chrome Tips - Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! - ECS - Audi

Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4660138
Mfg#:
042002LA01KT
Ships in 5 Business Days
ON SALE! SAVE 10%
$463.99

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

$417.56 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intake Cam Follower - Priced Each

ES#2667 - 058109309F - Intake Cam Follower - Priced Each - Replace your worn down followers - Ina - Audi Volkswagen

Replace your worn down followers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2667
Mfg#:
058109309F
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Non-Resonated (Louder)

ES#3240938 - SSXAU657 - Cat-Back Exhaust System - Non-Resonated (Louder) - 2.50" stainless steel with quad GT-90 titanium tips - Milltek Sport - Audi

2.50" stainless steel with quad GT-90 titanium tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits models without factory rear sports differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3240938
Mfg#:
SSXAU657
Ships in 3 Business Days
$4158.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt/Serpentine Belt Kit W/ Tensioners

ES#4699489 - 06m260849lKT - Accessory Belt/Serpentine Belt Kit W/ Tensioners - Keep your car from breaking down by replacing your cracked drive belt - Genuine Volkswagen Audi - Audi

Keep your car from breaking down by replacing your cracked drive belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4699489
Mfg#:
06M260849LKT
Ships in 2 Business Days
$825.99

This product was last offered at the strikethrough price on
02-26-2026

$824.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flush Kit

ES#3420790 - g013a8jm1kt5 - Coolant Flush Kit - Includes Schwaben coolant refill/air purge tool and 4.5 liters of G13 coolant. - Assembled By ECS - Audi Volkswagen

Includes Schwaben coolant refill/air purge tool and 4.5 liters of G13 coolant. 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#:
3420790
Mfg#:
G013A8JM1KT5
Ships in 9 Business Days
Auto Notify
ON SALE! SAVE 16%
$181.99

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

$152.12 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Complete ECS Performance Engine Mount Kit - Audi B6/B7 S4

ES#2723046 - 000805ECS02A2KT - Complete ECS Performance Engine Mount Kit - Audi B6/B7 S4 - Includes ECS performance polyurethane engine mounts and snub mount - ECS - Audi

Includes ECS performance polyurethane engine mounts and snub mount affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2723046
Mfg#:
000805ECS02A2KT
In Stock
ON SALE! SAVE 10%
$455.99

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

$410.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Genuine Ignition Service Kit

ES#4475302 - 06M905606F5KT - Genuine Ignition Service Kit - Includes six Genuine VW/Audi coil packs and OEM spark plugs to service your ignition system - Genuine Volkswagen Audi - Audi

Includes six Genuine VW/Audi coil packs and OEM spark plugs to service your ignition system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4475302
Mfg#:
06M905606F5KT
In Stock
$679.43 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley

ES#3450012 - 06E105251F - Crankshaft Pulley - Reduces vibrations and drives the accessory belt - Corteco - Audi

Reduces vibrations and drives the accessory belt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Corteco - Corporate Logo
ES#:
3450012
Mfg#:
06E105251F
In Stock at Vendor
$700.91

This product was last offered at the strikethrough price on
06-04-2026

$678.31 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Guide Rail - Priced Each

ES#284640 - 079109470 - Upper Guide Rail - Priced Each - Upper rail that the left & right timing chains ride - Genuine Volkswagen Audi - Audi

Upper rail that the left & right timing chains ride affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
284640
Mfg#:
079109470
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.

$15.99

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

$14.99 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

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

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