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BMW E46 323i M52 2.5L

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BMW E46 323i M52 2.5L Engine Pulley Parts

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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!

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

Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System

ES#3521792 - uppke46tuvaleoKT - Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System - Includes Accessory Belt System! - Assembled By ECS - BMW

Includes Accessory Belt System! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with Valeo alternator only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3521792
Mfg#:
UPPKE46TUVALEOKT
Back Ordered
ON SALE!
$633.19

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

$577.68 USD
Free Shipping
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 2 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
09-03-2026

$286.99 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
09-03-2026

$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

Accessory Belt Kit Service Kit

ES#2598797 - ADK0023P - Accessory Belt Kit Service Kit - Includes Contitech belts and high quality after market parts - Continental - BMW

Includes Contitech belts and high quality after market parts We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2598797
Mfg#:
ADK0023P
Ships in 4 Business Days
$236.99 USD
Free Shipping
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
In Stock
$149.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Alternator/Water Pump/Power Steering Belt

ES#2678566 - 11287636379 - Accessory Belt - Alternator/Water Pump/Power Steering Belt - Drives critical components - Genuine BMW - BMW

Drives critical components

Brand:
Genuine BMW - Corporate Logo
ES#:
2678566
Mfg#:
11287636379
Ships in 2 Business Days
9% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
09-03-2026

$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fillister Head Screw - M10x25mm

ES#16139 - 07129905534 - Fillister Head Screw - M10x25mm - Secures roller to hydraulic alternator belt tensioner assembly - Genuine BMW - BMW

Secures roller to hydraulic alternator belt tensioner assembly

Brand:
Genuine BMW - Corporate Logo
ES#:
16139
Mfg#:
07129905534
In Stock
$4.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley

ES#29373 - 12311432988 - Alternator Pulley - Genuine BMW replacement alternator pulley. - Genuine BMW - BMW

Genuine BMW replacement alternator pulley.

Brand:
Genuine BMW - Corporate Logo
ES#:
29373
Mfg#:
12311432988
Ships in 2 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.

$122.99

This product was last offered at the strikethrough price on
09-03-2026

$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley With Vibration Damper

ES#3450111 - 11231438995 - Crankshaft Pulley With Vibration Damper - Reduces vibrations and connects accessories - Corteco - BMW

Reduces vibrations and connects accessories

Brand:
Corteco - Corporate Logo
ES#:
3450111
Mfg#:
11231438995
Ships in 1 Business Day
$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Power Steering Pulley Kit

ES#2804221 - 003042ECS01KT - Aluminum Power Steering Pulley Kit - Finally, a durable power steering pulley that won't break! Includes ECS Aluminum Power Steering Pulley, three retaining bolts, and Continental power steering belt. - Assembled By ECS - BMW

Finally, a durable power steering pulley that won't break! Includes ECS Aluminum Power Steering Pulley, three retaining bolts, and Continental power steering belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2804221
Mfg#:
003042ECS01KT
In Stock
ON SALE!
$119.72

This product was last offered at the strikethrough price on
06-23-2026

$113.11 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Holding Tool - Bavarian Autosport

ES#3673979 - B8800145 - Crankshaft Holding Tool - Bavarian Autosport - A must-have for replacing timing chains, oil pump chains, leaking crankshaft seals and more. - Bav Auto Tools - BMW
ECS Tuning recommends this product.

A must-have for replacing timing chains, oil pump chains, leaking crankshaft seals and more. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bav Auto Tools - Corporate Logo
ES#:
3673979
Mfg#:
B8800145
In Stock
ON SALE! SAVE 15%
$77.99

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

$66.29 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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