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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Pulley Parts

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Mechanical A/C Belt Tensioner Assembly

ES#2528731 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - Ina - BMW
ECS Tuning recommends this product.

Complete tensioner assembly with roller We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/2002

Brand:
Ina - Corporate Logo
ES#:
2528731
Mfg#:
11287512758
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit Service Kit

ES#2593600 - 11281437450KT - Accessory Belt Kit Service Kit - Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner - Genuine BMW - BMW

Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner For vehicles with production date up to 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2593600
Mfg#:
11281437450KT
Ships in 1-2 days
$821.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit Service Kit

ES#2598805 - 11287512762KT - Accessory Belt Kit Service Kit - Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner - Genuine BMW - BMW

Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner For vehicles with production date from 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2598805
Mfg#:
11287512762KT
Ships in 1-2 days
$813.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt - M54

ES#4661013 - 4PK863 - Performance Kevlar Reinforced Accessory Belt - M54 - 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

For vehicles with production date from 09/2002

Brand:
ECS - Corporate Logo
ES#:
4661013
Mfg#:
4PK863
In Stock
$26.99 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
09-04-2026

$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

Crankshaft Pulley With Vibration Damper

ES#20546 - 11237513862 - Crankshaft Pulley With Vibration Damper - Reduces vibrations and connects accessories - Genuine BMW - BMW

Reduces vibrations and connects accessories For vehicles with production date from 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
20546
Mfg#:
11237513862
Ships in 6 Business Days
2% off MSRP

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

$719.99

This product was last offered at the strikethrough price on
09-04-2026

$705.99 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

Mechanical A/C Belt Tensioner Assembly

ES#2534490 - 11281433571 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - URO - BMW

Complete tensioner assembly with roller 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/2002

Brand:
URO - Corporate Logo
ES#:
2534490
Mfg#:
11281433571
Ships in 1 Business Day
$53.99 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
In Stock
$79.99

This product was last offered at the strikethrough price on
07-29-2026

$56.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner Conversion Kit

ES#4164847 - 11287838797K - Belt Tensioner Conversion Kit - Update from a mechanical tensioner to a hydraulic style tensioner - URO - BMW

Update from a mechanical tensioner to a hydraulic style tensioner 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4164847
Mfg#:
11287838797K
Back Ordered
Auto Notify
$82.99 USD
Free Shipping
on orders $49 and up

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 1-2 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
09-04-2026

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

Mechanical A/C Belt Tensioner Assembly

ES#2972821 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - URO - BMW

Complete tensioner assembly with roller 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2972821
Mfg#:
11287512758
In Stock
$43.99 USD
Free Shipping
on orders $49 and up
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
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.

$82.54

This product was last offered at the strikethrough price on
09-04-2026

$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Balancer Puller and Installer Set

ES#4372117 - W89711 - Harmonic Balancer Puller and Installer Set - For removal and installation of harmonic balancers on most automotive and light truck applications. - Performance Tool - Audi BMW Volkswagen Mercedes Benz MINI Porsche

For removal and installation of harmonic balancers on most automotive and light truck applications.

Brand:
Performance Tool - Corporate Logo
ES#:
4372117
Mfg#:
W89711
Ships in 1 Business Day
$166.09 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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