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Audi S4 Engine Pulley Parts

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Supercharger Reduction Pulley Upgrade

ES#3220459 - FMSCPS53T - Supercharger Reduction Pulley Upgrade - Contains a Supercharger Reduction Pulley and drive belt for the Audi 3.0T models - Forge - Audi Porsche

Contains a Supercharger Reduction Pulley and drive belt for the Audi 3.0T models

Brand:
Forge - Corporate Logo
ES#:
3220459
Mfg#:
FMSCPS53T
Ships in 3 Business Days
$346.99 USD
Free Shipping
on orders $49 and up

Alternator Pulley

ES#280992 - 06E903119M - Alternator Pulley - Does not include securing hardware - Genuine Volkswagen Audi - Audi

Does not include securing hardware Fits all up to the 2012 model year. For Bosch style alternators from the 2013 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280992
Mfg#:
06E903119M
Ships in 8 Business Days
9% off MSRP

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

$379.99

This product was last offered at the strikethrough price on
07-21-2026

$346.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Drive Idler Pulley

ES#3627536 - 06M260938J - Accessory Belt Drive Idler Pulley - Replace your worn idler pulley - Genuine Volkswagen Audi - Audi

Replace your worn idler pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3627536
Mfg#:
06M260938J
Ships in 1-2 days
7% off MSRP

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

$121.99

This product was last offered at the strikethrough price on
07-21-2026

$113.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Balancer Puller and Installer Set

ES#4372117 - W89711 - Harmonic Balancer Puller and Installer Set - For removal and installation of harmonic balancers on most automotive and light truck applications. - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

For removal and installation of harmonic balancers on most automotive and light truck applications.

Brand:
Performance Tool - Corporate Logo
ES#:
4372117
Mfg#:
W89711
Ships in 1 Business Day
$166.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#2187572 - 078903133AB - Accessory Belt Tensioner - Keep your drive belt tight - URO - Audi Volkswagen

Keep your drive belt tight 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187572
Mfg#:
078903133AB
In Stock
ON SALE!
$37.54

This product was last offered at the strikethrough price on
07-14-2026

$36.41 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#4821047 - 06E903133AEKTKT2 - Accessory Belt Kit - Keep your car from breaking down by replacing your cracked drive belt - Assembled By ECS - Audi

Keep your car from breaking down by replacing your cracked drive belt 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4821047
Mfg#:
06E903133AEKTKT2
Back Ordered
Auto Notify
ON SALE!
$348.99

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

$320.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt/Serpentine Belt Kit W/ Tensioners

ES#4821031 - 06M260849LKT3 - Accessory Belt/Serpentine Belt Kit W/ Tensioners - Keep your car from breaking down by replacing your cracked drive belt - Assembled By ECS - Audi

Keep your car from breaking down by replacing your cracked drive belt 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4821031
Mfg#:
06M260849LKT3
Back Ordered
$320.99

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

$311.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit W/ Tensioner

ES#2678389 - 06E903137QKT2 - Accessory Belt Kit W/ Tensioner - Keep your accessories running properly with a new tensioner and drive belt - Assembled By ECS - Audi

Keep your accessories running properly with a new tensioner and drive belt 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678389
Mfg#:
06E903137QKT2
Ships on Oct 27, 2026
Auto Notify
ON SALE!
$109.99

This product was last offered at the strikethrough price on
04-28-2026

$103.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory/Supercharger Belt Kit W/ Tensioners

ES#2678392 - 06E903133RKT2 - Accessory/Supercharger Belt Kit W/ Tensioners - Keep your accessories & supercharger running properly with new tensioners and drive belts - Assembled By ECS - Audi

Keep your accessories & supercharger running properly with new tensioners and drive belts 10X Entries For Our 25th Anniversary Sweepstakes!
From the 2013 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678392
Mfg#:
06E903133RKT2
Ships in 3 Business Days
ON SALE!
$314.87

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

$308.21 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fluidampr Overdrive Ring - 187mm

ES#3557475 - 651201cr187KT - Fluidampr Overdrive Ring - 187mm - Includes 1310mm belt for use with 57mm or 63mm supercharger pulleys - iABED Industries - Audi Porsche

Includes 1310mm belt for use with 57mm or 63mm supercharger pulleys Only for us with Fluidampr 651201C.

Brand:
iABED Industries - Corporate Logo
ES#:
3557475
Mfg#:
651201CR187KT
Back Ordered
Auto Notify
$305.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt/Serpentine Belt Kit W/ Tensioners

ES#4699378 - 06M903137TKT - Accessory Belt/Serpentine Belt Kit W/ Tensioners - Keep your accessories running properly with new tensions and drive belts - Assembled By ECS - Audi

Keep your accessories running properly with new tensions and drive belts 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4699378
Mfg#:
06M903137TKT
Back Ordered
$157.99

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

$152.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Supercharger Crank Pulley Upgrade - 180mm

ES#3438174 - CTS-HW-266-180 - CTS Turbo Supercharger Crank Pulley Upgrade - 180mm - Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output - CTS - Audi Porsche

Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output *NOTE: This kit must be used with appropriate "Stage 2" performance software.

Brand:
CTS - Corporate Logo
ES#:
3438174
Mfg#:
CTS-HW-266-180
Special Order: No Guaranteed ETA
ON SALE! SAVE 20%
$379.99

This product was last offered at the strikethrough price on
07-10-2026

$303.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley

ES#3545463 - 078105251L - Crankshaft Pulley - Reduces vibrations and drives the accessory belt - URO - Audi Volkswagen

Reduces vibrations and drives the accessory belt 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3545463
Mfg#:
078105251L
Ships in 1 Business Day
$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit With ECS Performance Kevlar Reinforced Accessory Belt

ES#4707953 - 06E903137T1KT - Accessory Belt Kit With ECS Performance Kevlar Reinforced Accessory Belt - Includes the tensioner assembly, ECS performance Kevlar reinforced accessory belt, belt tensioner and hardware - Assembled By ECS - Audi

Includes the tensioner assembly, ECS performance Kevlar reinforced accessory belt, belt tensioner and hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4707953
Mfg#:
06E903137T1KT
Ships in 8 Business Days
$295.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM Lightweight Crank Pulley

ES#4045871 - 079105251N - JHM Lightweight Crank Pulley - Counterbalanced like stock pulley for proper engine balancing AND it drops 5 pounds in the process - JH Motorsports - Audi

Counterbalanced like stock pulley for proper engine balancing AND it drops 5 pounds in the process

Brand:
JH Motorsports - Corporate Logo
ES#:
4045871
Mfg#:
079105251N
Ships in 10 Business Days
$295.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fluidampr Overdrive Ring - 189mm

ES#3557476 - 651201cr189KT - Fluidampr Overdrive Ring - 189mm - Includes 1310mm belt for use with a 57mm supercharger pulley - iABED Industries - Audi Porsche

Includes 1310mm belt for use with a 57mm supercharger pulley Only for us with Fluidampr 651201C.

Brand:
iABED Industries - Corporate Logo
ES#:
3557476
Mfg#:
651201CR189KT
Back Ordered
Auto Notify
$255.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Pulley Parts

Pulleys drive accessories essential to vehicle operation. Whether you need to install a stock original equipment pulley during a repair, or improve engine performance and appearance with a lightweight aluminum or underdrive pulley, count on ECS Tuning for pulley solutions that work.

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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