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BMW Engine Pulley Parts

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Hydraulic Alternator Belt Tensioner Assembly

ES#2574923 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - Ruville - BMW

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

Brand:
Ruville - Corporate Logo
ES#:
2574923
Mfg#:
11287838797
In Stock
$97.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Belt Tensioner

ES#21803 - 11287835417 - Hydraulic Belt Tensioner - Hydraulic tensioner for water pump belt, just tensioner, does not come with relay lever assembly - Genuine BMW - BMW

Hydraulic tensioner for water pump belt, just tensioner, does not come with relay lever assembly

Brand:
Genuine BMW - Corporate Logo
ES#:
21803
Mfg#:
11287835417
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.

$193.99

This product was last offered at the strikethrough price on
10-25-2026

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

Crankshaft Pulley With Vibration Damper

ES#3450113 - 11238511321 - Crankshaft Pulley With Vibration Damper - Reduces vibrations and connects accessories - Corteco - BMW

Reduces vibrations and connects accessories

Brand:
Corteco - Corporate Logo
ES#:
3450113
Mfg#:
11238511321
In Stock
$573.99

This product was last offered at the strikethrough price on
05-07-2026

$470.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Power Pulley Kit

ES#3027881 - PPK-E46-M54 - 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 Into Our F80 M3 Sweepstakes
For vehicles with Bosch alternator

Brand:
Turner Motorsport - Corporate Logo
ES#:
3027881
Mfg#:
PPK-E46-M54
In Stock
ON SALE! SAVE 15%
$377.99

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

$321.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N55 F Chassis

ES#4485242 - 8pk1390 - Performance Kevlar Reinforced Belt - N55 F Chassis - 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#:
4485242
Mfg#:
8PK1390
Ships on Feb 23, 2027
$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2593867 - 11287837898KT1 - Accessory Belt Kit - Everything you need to service your belt drive system using quality aftermarket components - Assembled By ECS - BMW

Everything you need to service your belt drive system using quality aftermarket components 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593867
Mfg#:
11287837898KT1
In Stock
ON SALE!
$281.99

This product was last offered at the strikethrough price on
10-01-2026

$277.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 "Bulletproof" Crank Kit

ES#4365386 - ECSf30n55bpKT - N55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. - Assembled By ECS - BMW

...or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4365386
Mfg#:
ECSF30N55BPKT
In Stock
ON SALE!
$510.99

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

$481.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

N55 "Bulletproof" Crank Kit

ES#4642986 - ECSEN55BPKRKT - N55 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your E9X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt! - Assembled By ECS - BMW

...or at least as "Bulletproof" as your E9X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4642986
Mfg#:
ECSEN55BPKRKT
Ships on Dec 8, 2026
ON SALE!
$608.99

This product was last offered at the strikethrough price on
09-01-2026

$585.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Accessory Belt - Alternator/Water Pump/Power Steering Belt - 6K1538

ES#10334 - 11281706545 - Accessory Belt - Alternator/Water Pump/Power Steering Belt - 6K1538 - Drives critical components - Continental - BMW
ECS Tuning recommends this product.

Drives critical components We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
10334
Mfg#:
11281706545
Ships in 1 Business Day
$29.99

This product was last offered at the strikethrough price on
10-23-2026

$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Service kit

ES#3160978 - 11287594969KT - Accessory Belt Service kit - Includes belt and tensioner - Assembled By ECS - BMW

Includes belt and tensioner 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3160978
Mfg#:
11287594969KT
In Stock
ON SALE! SAVE 27%
$84.99

This product was last offered at the strikethrough price on
06-01-2026

$62.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Alternator/AC/Power Steering Belt

ES#2800503 - 11287628661 - Accessory Belt - Alternator/AC/Power Steering Belt - Keep your A/C system operating properly. - Continental - BMW
ECS Tuning recommends this product.

Keep your A/C system operating properly. We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2800503
Mfg#:
11287628661
In Stock
$37.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#259465 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Ina - BMW
ECS Tuning recommends this product.

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
259465
Mfg#:
11287841228
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner Assembly

ES#2681004 - 11287530314 - Belt Tensioner Assembly - Complete tensioner assembly - Ina - BMW
ECS Tuning recommends this product.

Complete tensioner assembly We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2681004
Mfg#:
11287530314
In Stock
$84.99

This product was last offered at the strikethrough price on
08-12-2026

$59.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner - Mechanical

ES#4830645 - 11288570439 - Accessory Belt Tensioner - Mechanical - For Gen 1 B58 - Bremmen Parts - BMW MINI

For Gen 1 B58 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830645
Mfg#:
11288570439
In Stock
ON SALE! SAVE 20%
$93.99

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

$75.06 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

S54 Power Pulley Kit

ES#3191638 - PPK-S54 - S54 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
Gains of up to 10hp on a stock M3!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3191638
Mfg#:
PPK-S54
Ships in 1 Business Day
ON SALE! SAVE 25%
$418.99

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

$314.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 (E-Chassis) Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt

ES#4876650 - 049453LA01-02KT7 - N54/N55 (E-Chassis) Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt - Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! - Enthusiast Bundles - BMW

Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876650
Mfg#:
049453LA01-02KT7
Ships on Dec 8, 2026
ON SALE! SAVE 43%
$178.98

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

$101.21 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.

Other BMW Engine Pulley Parts

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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