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Audi S4 Engine Pulley Parts

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

ES#4707958 - 06E903137T3KT - 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#:
4707958
Mfg#:
06E903137T3KT
Ships on Aug 11, 2026
$536.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#2866291 - 06E903133R - Accessory Belt Tensioner - Keep your drive belt tight - Febi - Audi

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

Brand:
Febi - Corporate Logo
ES#:
2866291
Mfg#:
06E903133R
In Stock
ON SALE! SAVE 12%
$105.99

This product was last offered at the strikethrough price on
05-28-2026

$93.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Drive Belt

ES#4699374 - 06M260849L - Accessory Drive Belt - Keep your car from breaking down by replacing your cracked drive belt - Gates - Audi

Keep your car from breaking down by replacing your cracked drive belt

Brand:
Gates - Corporate Logo
ES#:
4699374
Mfg#:
06M260849L
In Stock
$28.99

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

$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Idler Pulley

ES#250618 - 079903341 - Accessory Belt Idler Pulley - This is not the belt tensioner, this is a stationary pulley - Genuine Volkswagen Audi - Audi

This is not the belt tensioner, this is a stationary pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
250618
Mfg#:
079903341
In Stock
ON SALE!
$79.99

This product was last offered at the strikethrough price on
06-25-2026

$75.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory/Supercharger Belt Kit W/ Tensioners

ES#2678397 - 06E903133HKT2 - 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!
Up to production date 7/11/2011

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678397
Mfg#:
06E903133HKT2
Ships on Oct 27, 2026
Auto Notify
$323.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Pulley Upgrade Kit

ES#3082216 - CTS-HW-0133 - Supercharger Pulley Upgrade Kit - Software & installation kit not included in this upgrade kit - CTS - Audi Porsche

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

Brand:
CTS - Corporate Logo
ES#:
3082216
Mfg#:
CTS-HW-0133
Back Ordered
Auto Notify
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

Supercharger Belt Idler Pulley

ES#3214735 - 06E903341H - Supercharger Belt Idler Pulley - Tracks the supercharger belt properly - Ina - Audi

Tracks the supercharger belt properly We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3214735
Mfg#:
06E903341H
Ships in 1 Business Day
$81.99

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

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo 3.0T V6 Dual Pulley Upgrade Kit (Press-on - 187mm)

ES#4017694 - CTS-HW-434 - CTS Turbo 3.0T V6 Dual Pulley Upgrade Kit (Press-on - 187mm) - Larger diameter crank pulley & smaller supercharger pulley increases the speed at which the supercharger spins, increasing the boost pressure output - CTS - Audi Porsche

Larger diameter crank pulley & smaller supercharger 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#:
4017694
Mfg#:
CTS-HW-434
Back Ordered
ON SALE! SAVE 20%
$529.99

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

$423.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#4830642 - 078903133AB - Accessory Belt Tensioner - Keep your drive belt tight - Bremmen Parts - Audi Volkswagen

Keep your drive belt tight 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830642
Mfg#:
078903133AB
In Stock
ON SALE! SAVE 16%
$36.99

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

$31.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Serpentine Belt

ES#4714700 - 06M903137T - Serpentine Belt - Replace your worn belt today before it breaks - Gates - Audi

Replace your worn belt today before it breaks

Brand:
Gates - Corporate Logo
ES#:
4714700
Mfg#:
06M903137T
In Stock at Vendor
$34.99

This product was last offered at the strikethrough price on
05-01-2026

$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Pulley - 4 Bolt

ES#3181924 - 06M121031D - Water Pump Pulley - 4 Bolt - 4 Bolt pulley that attaches to the water pump - Genuine Volkswagen Audi - Audi

4 Bolt pulley that attaches to the water pump

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181924
Mfg#:
06M121031D
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.

$211.99

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

$197.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley

ES#285124 - 079903119C - Alternator Pulley - Does not include securing hardware - Genuine Volkswagen Audi - Audi

Does not include securing hardware From VIN 8E-5-065001, split is in the 2005 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
285124
Mfg#:
079903119C
Ships in 8 Business Days
6% off MSRP

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

$833.83

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

$782.21 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#280997 - 06E903133Q - Accessory Belt Tensioner - Keep your drive belt tight - Genuine Volkswagen Audi - Audi

Keep your drive belt tight Up to the 2012 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280997
Mfg#:
06E903133Q
Ships in 4 Business Days
3% off MSRP

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

$251.67

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

$244.22 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Idler Pulley

ES#2771605 - 06E903341A - Accessory Belt Idler Pulley - Also referred to as the 'relay roller' - Ina - Audi

Also referred to as the 'relay roller' We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2771605
Mfg#:
06E903341A
In Stock
$30.65

This product was last offered at the strikethrough price on
03-16-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Crank Pulley Kit For 3.0TFSI

ES#4821286 - UH017BTA - Unitronic Crank Pulley Kit For 3.0TFSI - Optimized pulley size for maximum performance. - Unitronic - Audi

Optimized pulley size for maximum performance.

Brand:
Unitronic - Corporate Logo
ES#:
4821286
Mfg#:
UH017BTA
Ships in 2 Business Days
$349.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport 3.0 TFSI Supercharger Pulley Removal Tool

ES#4005448 - 034-145-Z037 - 034Motorsport 3.0 TFSI Supercharger Pulley Removal Tool - Features precision machined half-shells designed to perfectly clamp the supercharger pulley for easy removal - 034Motorsport - Audi Porsche

Features precision machined half-shells designed to perfectly clamp the supercharger pulley for easy removal

Brand:
034Motorsport - Corporate Logo
ES#:
4005448
Mfg#:
034-145-Z037
Ships in 2 Business Days
$248.00 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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