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BMW M3 Engine Pulley Parts

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Hydraulic Alternator Belt Tensioner Roller

ES#4818522 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Bremmen Parts - BMW

Replacement is recommend with every belt service 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818522
Mfg#:
11281748131
In Stock
ON SALE! SAVE 19%
$18.99

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

$15.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4636449 - 11287848605KBKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belts - Assembled By ECS - BMW

Utilizes high quality components and our performance Kevlar reinforced belts 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4636449
Mfg#:
11287848605KBKT
Ships on Nov 12, 2026
$414.99

This product was last offered at the strikethrough price on
08-07-2026

$385.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2586762 - 11281469266KT - Accessory Belt Kit - Includes both belts, tensioners, and rollers - Assembled By ECS - BMW

Includes both belts, tensioners, and rollers 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2586762
Mfg#:
11281469266KT
In Stock
ON SALE! SAVE 21%
$237.99

This product was last offered at the strikethrough price on
06-16-2026

$187.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#2079664 - 11287589361 - Idler Pulley - Idler pulley for serpentine belt. - Genuine BMW - BMW

Idler pulley for serpentine belt.

Brand:
Genuine BMW - Corporate Logo
ES#:
2079664
Mfg#:
11287589361
In Stock
5% off MSRP

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

$82.99

This product was last offered at the strikethrough price on
10-24-2026

$78.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Accessory Belt Tensioner

ES#3609927 - 11288580360 - Mechanical Accessory Belt Tensioner - Applies tension to the accessory belt to prevent slippage - Genuine BMW - BMW MINI

Applies tension to the accessory belt to prevent slippage

Brand:
Genuine BMW - Corporate Logo
ES#:
3609927
Mfg#:
11288580360
In Stock
4% off MSRP

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

$197.99

This product was last offered at the strikethrough price on
10-24-2026

$190.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#21817 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Genuine BMW - BMW

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems

Brand:
Genuine BMW - Corporate Logo
ES#:
21817
Mfg#:
11287841228
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.

$123.34

This product was last offered at the strikethrough price on
10-24-2026

$113.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Belt Tensioner

ES#3651383 - 11288088632 - Mechanical Belt Tensioner - Complete tensioner assembly with roller - Genuine BMW - BMW

Complete tensioner assembly with roller

Brand:
Genuine BMW - Corporate Logo
ES#:
3651383
Mfg#:
11288088632
In Stock
3% off MSRP

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

$179.99

This product was last offered at the strikethrough price on
05-06-2026

$173.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Belt Tensioner

ES#21804 - 11287835422 - Hydraulic Belt Tensioner - Keep your air conditioning belt tight - Genuine BMW - BMW

Keep your air conditioning belt tight

Brand:
Genuine BMW - Corporate Logo
ES#:
21804
Mfg#:
11287835422
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.

$193.99

This product was last offered at the strikethrough price on
10-24-2026

$181.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Alternator/Water Pump

ES#11064 - 11287837898 - Accessory Belt - Alternator/Water Pump - Keep your accessories turning - Continental - BMW

Keep your accessories turning We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
11064
Mfg#:
11287837898
Ships in 1 Business Day
$31.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport S65 Power Pulley Kit

ES#3251754 - ppk-s65-lKT - Turner Motorsport S65 Power Pulley Kit - Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises! - Turner Motorsport - BMW

Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises! 10X Entries Into Our F80 M3 Sweepstakes
Adds up to 10-14hp and 7-9ft/lbs torque on a stock M3
For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power Steering Pump

Brand:
Turner Motorsport - Corporate Logo
ES#:
3251754
Mfg#:
PPK-S65-LKT
Ships on Mar 26, 2027
ON SALE! SAVE 25%
$546.99

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

$410.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

A/c Belt

ES#2215421 - 11281437873 - A/c Belt - Drives the air conditioning compressor - Continental - BMW

Drives the air conditioning compressor We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2215421
Mfg#:
11281437873
In Stock
$13.99

This product was last offered at the strikethrough price on
10-22-2026

$13.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Red Kevlar Accessory Belt - Water Pump/Alternator

ES#4661032 - 6PK1555 - ECS Red Kevlar Accessory Belt - Water Pump/Alternator - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4661032
Mfg#:
6PK1555
Ships on Nov 16, 2026
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52

ES#4335467 - VAC-HPCD-M50-TR - VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52 - Isolate harmonics before they can destroy your engine - ATI Performance Products - BMW

Isolate harmonics before they can destroy your engine For use only with OBD1 engine management systems. Will not work with S50B30 & S50B32 Euro Engines.

Brand:
ATI Performance Products - Corporate Logo
ES#:
4335467
Mfg#:
VAC-HPCD-M50-TR
Ships on Nov 10, 2026
$1139.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt - M50/52 S52

ES#4661020 - 5PK906 - Performance Kevlar Reinforced Accessory Belt - M50/52 S52 - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Replaces BMW # 11281437449, 11281437873, and 11281470024 - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Replaces BMW # 11281437449, 11281437873, and 11281470024 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4661020
Mfg#:
5PK906
In Stock
$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Protection Cap

ES#21662 - 11281730349 - Protection Cap - Used to cover the securing bolt - Genuine BMW - BMW

Used to cover the securing bolt

Brand:
Genuine BMW - Corporate Logo
ES#:
21662
Mfg#:
11281730349
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Balancer Kit

ES#4351831 - 11237853850KT - Harmonic Balancer Kit - Includes the components necessary to replace your harmonic balancer - Assembled By ECS - BMW

Includes the components necessary to replace your harmonic balancer 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4351831
Mfg#:
11237853850KT
Ships in 1-2 days
$1118.99

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

$1092.99 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.

Let us help you find the parts that fit your BMW

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

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