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BMW E34 Engine Pulley Parts

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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
2% off MSRP

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

$23.06

This product was last offered at the strikethrough price on
07-20-2026

$22.49 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 For Our 25th Anniversary 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

Aluminum Water Pump Pulley

ES#2534821 - 11511730554 - Aluminum Water Pump Pulley - Located behind the fan blade, fan clutch bolts to this pulley - URO Premium - BMW

Located behind the fan blade, fan clutch bolts to this pulley 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
2534821
Mfg#:
11511730554
In Stock
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Assembly

ES#2873679 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - Febi - BMW
ECS Tuning recommends this product.

Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873679
Mfg#:
11287838797
Ships on Oct 15, 2026
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Power Pulley Kit

ES#3219164 - ppke36KT2 - Turner Motorsport 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 For Our 25th Anniversary Sweepstakes!
For vehicles with Valeo alternator only

Brand:
Turner Motorsport - Corporate Logo
ES#:
3219164
Mfg#:
PPKE36KT2
In Stock
ON SALE! SAVE 15%
$382.99

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

$325.54 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!
For vehicles with production date from 01/1992

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

This product was last offered at the strikethrough price on
06-17-2026

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

Hydraulic Alternator Belt Tensioner

ES#2696132 - 11281717188 - Hydraulic Alternator Belt Tensioner - Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner - Ina - BMW

Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2696132
Mfg#:
11281717188
Ships in 1-2 days
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Service Kit

ES#3658420 - 11287636367KT - Accessory Belt Service Kit - Utilizes high quality aftermarket components - Assembled By ECS - BMW

Utilizes high quality aftermarket components 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3658420
Mfg#:
11287636367KT
Ships in 10 Business Days
Auto Notify
ON SALE! SAVE 15%
$1014.99

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

$864.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crank pulley/Vibration Damper

ES#20526 - 11231738620 - Crank pulley/Vibration Damper - Drives accessories; located at the end of the crankshaft - Genuine BMW - BMW

Drives accessories; located at the end of the crankshaft

Brand:
Genuine BMW - Corporate Logo
ES#:
20526
Mfg#:
11231738620
Special Order: No Guaranteed ETA
2% off MSRP

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

$826.99

This product was last offered at the strikethrough price on
07-20-2026

$810.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley Securing Bolt

ES#14608 - 07119904677 - Idler Pulley Securing Bolt - Used to secure the idler pulley - Genuine BMW - BMW

Used to secure the idler pulley

Brand:
Genuine BMW - Corporate Logo
ES#:
14608
Mfg#:
07119904677
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.

$6.99

This product was last offered at the strikethrough price on
07-20-2026

$6.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - M8x105mm

ES#14586 - 07119904532 - Hex Bolt - M8x105mm - Worn hardware should be replaced before it fails - Genuine BMW - BMW

Worn hardware should be replaced before it fails Secures the top of the hydraulic alternator belt tensioner assembly to the bracket

Brand:
Genuine BMW - Corporate Logo
ES#:
14586
Mfg#:
07119904532
In Stock
$7.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - M8x50mm

ES#14587 - 07119904533 - Hex Bolt - M8x50mm - Worn hardware should be replaced before it fails - Genuine BMW - BMW MINI

Worn hardware should be replaced before it fails Secures the lower portion of the hydraulic alternator belt tensioner to the assembly

Brand:
Genuine BMW - Corporate Logo
ES#:
14587
Mfg#:
07119904533
In Stock
$4.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VAC Motorsports ATI A/C Pulley

ES#4583530 - VAC-HPCD-M50-ACP - VAC Motorsports ATI A/C Pulley - The perfect addition to your VAC ATI Harmonic Damper Pulley when retaining your A/C system - VAC Motorsports - BMW

The perfect addition to your VAC ATI Harmonic Damper Pulley when retaining your A/C system

Brand:
VAC Motorsports - Corporate Logo
ES#:
4583530
Mfg#:
VAC-HPCD-M50-ACP
Ships in 3 Business Days
$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Assembly

ES#21813 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - Genuine BMW - BMW

Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley

Brand:
Genuine BMW - Corporate Logo
ES#:
21813
Mfg#:
11287838797
Ships in 4 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.

$304.99

This product was last offered at the strikethrough price on
07-20-2026

$286.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley - 66mm

ES#29288 - 12311288238 - Alternator Pulley - 66mm - Includes washer - Genuine BMW - BMW

Includes washer

Brand:
Genuine BMW - Corporate Logo
ES#:
29288
Mfg#:
12311288238
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.

$109.99

This product was last offered at the strikethrough price on
07-20-2026

$106.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#21691 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Genuine BMW - BMW

Replacement is recommend with every belt service

Brand:
Genuine BMW - Corporate Logo
ES#:
21691
Mfg#:
11281748131
Ships Today
ON SALE!
$78.99

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

$75.04 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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