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Audi S4 Engine Pulley Parts

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Supercharger Pulley Upgrade Kit

ES#4043098 - CTS-HW-0333 - Supercharger Pulley Upgrade Kit - Software & installation kit not included in this upgrade kit - CTS - Audi

Software & installation kit not included in this upgrade kit *For models with bolt-on style supercharger pulleys - 3.0 TFSI Performance Software is sold separately an

Brand:
CTS - Corporate Logo
ES#:
4043098
Mfg#:
CTS-HW-0333
Ships in 8 Business Days
ON SALE! SAVE 20%
$159.99

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

$127.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley Hardware Kit

ES#271279 - 028903320C - Alternator Pulley Hardware Kit - A new washer and nut to install your pulley - Genuine Volkswagen Audi - Audi Volkswagen

A new washer and nut to install your pulley For use with Bosch style alternators

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
271279
Mfg#:
028903320C
Ships in 1-2 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.

$18.99

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

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#2090916 - 078121235G - Idler Pulley - Provides mounting for the fan clutch - MTC - Audi Volkswagen

Provides mounting for the fan clutch

Brand:
MTC - Corporate Logo
ES#:
2090916
Mfg#:
078121235G
Ships in 7 Business Days
$126.99 USD
Free Shipping

Accessory Belt

ES#2738757 - 079903137E - Accessory Belt - Replaces your cracked or worn belt - Continental - Audi

Replaces your cracked or worn belt We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2738757
Mfg#:
079903137E
In Stock
$26.99

This product was last offered at the strikethrough price on
05-18-2026

$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Kevlar Reinforced Accessory/Supercharger Belt Kit W/ Tensioners

ES#4707954 - 06E903137T2KT - ECS Performance Kevlar Reinforced Accessory/Supercharger Belt Kit W/ Tensioners - Includes the tensioner assembly, ECS performance Kevlar reinforced accessory and supercharger belt, accessory and supercharger tensioners and hardware. - Assembled By ECS - Audi

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

Brand:
Assembled By ECS - Corporate Logo
ES#:
4707954
Mfg#:
06E903137T2KT
Ships in 8 Business Days
ON SALE! SAVE 13%
$266.32

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

$231.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3.0T Supercharger Pulley Removal Tool Kit

ES#4362298 - UH005-BT0 - 3.0T Supercharger Pulley Removal Tool Kit - Includes everything required to properly remove the stock supercharger pulley - Unitronic - Audi Volkswagen Porsche

Includes everything required to properly remove the stock supercharger pulley

Brand:
Unitronic - Corporate Logo
ES#:
4362298
Mfg#:
UH005-BT0
Ships in 6 Business Days
$219.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Pulley Removal Tool

ES#2855824 - FMSCPS53TIK - Supercharger Pulley Removal Tool - Used to remove the supercharger pulley on 3.0T engines - Forge - Audi Porsche

Used to remove the supercharger pulley on 3.0T engines

Brand:
Forge - Corporate Logo
ES#:
2855824
Mfg#:
FMSCPS53TIK
Ships in 4 Business Days
$218.99 USD
Free Shipping
on orders $49 and up

Accessory Belt Kit

ES#2762331 - 079903133RKT1 - Accessory Belt Kit - Belt service kit includes belt, tensioner, & hardware to keep your belt where it should be! - Assembled By ECS - Audi

Belt service kit includes belt, tensioner, & hardware to keep your belt where it should be! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2762331
Mfg#:
079903133RKT1
In Stock
ON SALE! SAVE 41%
$368.99

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

$218.21 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pulley Puller

ES#4371952 - W80653 - Pulley Puller - Pulls pressed on 1 and 2 groove pulleys on alternators and power steering pumps. - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Pulls pressed on 1 and 2 groove pulleys on alternators and power steering pumps.

Brand:
Performance Tool - Corporate Logo
ES#:
4371952
Mfg#:
W80653
Ships in 2 Business Days
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Power Steering Pump Pulley

ES#280929 - 06E145255C - Power Steering Pump Pulley - Get rid of the squeaks and rattles - Genuine Volkswagen Audi - Audi

Get rid of the squeaks and rattles For vehicles with Audi Drive Select dynamic steering (adjusts steering ratio dependent on speed)

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280929
Mfg#:
06E145255C
Ships in 3 Business 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.

$216.65

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

$201.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Supercharger Pulley Kit For 3.0TFSI

ES#4821282 - UH016BTA - Unitronic Supercharger Pulley Kit For 3.0TFSI - Unitronic's Supercharger Pulley Upgrade effectively raises boost levels by increasing the speed in which the supercharger spins. - Unitronic - Audi

Unitronic's Supercharger Pulley Upgrade effectively raises boost levels by increasing the speed in which the supercharger spins.

Brand:
Unitronic - Corporate Logo
ES#:
4821282
Mfg#:
UH016BTA
Ships in 6 Business Days
$199.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Idler Pulley

ES#4871908 - 06E903341A - Accessory Belt Idler Pulley - Also referred to as the 'relay roller' - Bremmen Parts - Audi

Also referred to as the 'relay roller' 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4871908
Mfg#:
06E903341A
In Stock
ON SALE! SAVE 22%
$20.99

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

$16.31 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#2813139 - 078903133AB - Accessory Belt Tensioner - Keep your drive belt tight - Hamburg Tech - Audi Volkswagen

Keep your drive belt tight We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813139
Mfg#:
078903133AB
Ships in 2 Business Days
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fluidampr Overdrive Ring - 179mm

ES#3557473 - 651201cr179KT - Fluidampr Overdrive Ring - 179mm - Includes 1300mm belt for use with 57mm or 63mm supercharger pulleys - iABED Industries - Audi Porsche

Includes 1300mm belt for use with 57mm or 63mm supercharger pulleys Only for us with Fluidampr 651201C.

Brand:
iABED Industries - Corporate Logo
ES#:
3557473
Mfg#:
651201CR179KT
Back Ordered
$203.99

This product was last offered at the strikethrough price on
06-10-2026

$188.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Revo Supercharger Pulley and Belt Kit

CNC machined from high grade stainless steel, and designed with a smaller radius than the factory pulley.

Brand:
REVO - Corporate Logo
ES#:
4499781
Mfg#:
RA221M200100
Back Ordered
Auto Notify
$187.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt Tensioner

ES#2773350 - 06E903133AB - Supercharger Belt Tensioner - Keep your supercharger belt tight - Genuine Volkswagen Audi - Audi

Keep your supercharger belt tight From production date 7/12/2011

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2773350
Mfg#:
06E903133AB
Special Order: No Guaranteed ETA
14% off MSRP

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

$211.64

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

$181.99 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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