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Audi S4 Engine Pulley Parts

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JHM Automatic Belt Tensioner Conversion Kit

ES#4045874 - 079903133R-Kit - JHM Automatic Belt Tensioner Conversion Kit - Now there is FINALLY a better solution for replacing the OEM Alternator Belt tensioning setup. - JH Motorsports - Audi

Now there is FINALLY a better solution for replacing the OEM Alternator Belt tensioning setup.

Brand:
JH Motorsports - Corporate Logo
ES#:
4045874
Mfg#:
079903133R-KIT
In Stock
$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Damper Crankshaft Pulley

ES#3234500 - 651211 - Harmonic Damper Crankshaft Pulley - Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability - Fluidampr - Audi

Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability

Brand:
Fluidampr - Corporate Logo
ES#:
3234500
Mfg#:
651211
In Stock at Vendor
$518.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.0 TFSI Supercharger Crank Pulley Upgrade - 179mm

ES#4005444 - 034-145-Z045 - 3.0 TFSI Supercharger Crank Pulley Upgrade - 179mm - Increase supercharger rotational speed to provide more boost to your engine - 034Motorsport - Audi

Increase supercharger rotational speed to provide more boost to your engine *To be used with Stage 2 software - Stage 2+ software necessary if used in conjunction with a supercharger pulley upgrade*

Brand:
034Motorsport - Corporate Logo
ES#:
4005444
Mfg#:
034-145-Z045
In Stock
$500.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory/Supercharger Belt Kit W/ Tensioners

ES#2678394 - 06E903133MKT2 - 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 production date 7/12/2011 up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678394
Mfg#:
06E903133MKT2
Ships on Oct 27, 2026
Auto Notify
ON SALE!
$187.99

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

$172.54 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

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

Supercharger Belt Idler Pulley

ES#4830568 - 06E903341H - Supercharger Belt Idler Pulley - Tracks the supercharger belt properly - Bremmen Parts - Audi

Tracks the supercharger belt properly 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830568
Mfg#:
06E903341H
In Stock
ON SALE! SAVE 21%
$52.99

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

$41.61 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt Idler Pulley

ES#2972814 - 06E903341H - Supercharger Belt Idler Pulley - Tracks the supercharger belt properly - Hamburg Tech - Audi

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

Brand:
Hamburg Tech - Corporate Logo
ES#:
2972814
Mfg#:
06E903341H
In Stock
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Integrated Engineering 3.0T Dual Pulley Power Kit

ES#4351841 - ieppcgj1 - Integrated Engineering 3.0T Dual Pulley Power Kit - Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU & TCU software plus Dual Pulley setup - Integrated Engineering - Audi

Turn your Audi B8 S4 or S5 into an all-out street monster with IE's complete Dual Pulley kit! Includes ECU & TCU software plus Dual Pulley setup 5X Entries For Our 25th Anniversary Sweepstakes!

Fits vehicles with DSG transmissions only

Brand:
Integrated Engineering - Corporate Logo
ES#:
4351841
Mfg#:
IEPPCGJ1
In Stock
$2579.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Supercharger Dual Pulley Upgrade Kit

ES#4057277 - MS100185 - APR Supercharger Dual Pulley Upgrade Kit - Dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger (Bolt-On SC Pulley) - APR - Audi

Dramatically increase horsepower and torque by increasing the rotational speed of the factory supercharger (Bolt-On SC Pulley) Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
*For models with factory bolt-on pulley (3.0T Gen 2 Simos 16.x) - APR Stage II software is required to ru

Brand:
APR - Corporate Logo
ES#:
4057277
Mfg#:
MS100185
In Stock
11% off MSRP

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

$701.99

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

$623.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#4821045 - 06e903133aektkt1 - Accessory Belt Kit - 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

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4821045
Mfg#:
06E903133AEKTKT1
Ships in 3 Business Days
$865.99

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

$810.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner

ES#3218979 - 06E903133Q - Accessory Belt Tensioner - Keep your drive belt tight - URO - Audi

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#:
3218979
Mfg#:
06E903133Q
In Stock
$51.99

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

$43.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#3981244 - 078121235G - Idler Pulley - Provides mounting for the fan clutch - URO - Audi Volkswagen

Provides mounting for the fan clutch 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3981244
Mfg#:
078121235G
In Stock
$150.64 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supercharger Belt Tensioner

ES#2766143 - 06E903133AC - Supercharger Belt Tensioner - Keep your supercharger belt tight - Genuine Volkswagen Audi - Audi

Keep your supercharger belt tight Up to production date 7/11/2011

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2766143
Mfg#:
06E903133AC
In Stock
8% off MSRP

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

$204.99

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

$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bosch Alternator Tool Kit - 13 Pieces

ES#11415 - bta-13pcs - Bosch Alternator Tool Kit - 13 Pieces - Remove and install OAD alternator pulleys - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Remove and install OAD alternator pulleys 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
11415
Mfg#:
BTA-13PCS
In Stock
ON SALE! SAVE 30%
$78.99

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

$55.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Pulley

ES#3618283 - 06E121031E - Water Pump Pulley - Drives the water pump from the accessory belt - URO - Audi

Drives the water pump from the accessory belt 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3618283
Mfg#:
06E121031E
Ships in 1-3 days
$57.48 USD
Free Shipping
on orders $49 and up
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.

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