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BMW E90 Engine Drive Belt Parts

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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!
For vehicles with a production date up to 04/2008

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

Schwaben BMW Belt Tensioner Tool

ES#3136158 - 020023SCH01A - Schwaben BMW Belt Tensioner Tool - Much easier than using a T60 Torx socket! A must have for belt service on N54/N55 engines. - Schwaben - BMW
ECS Tuning recommends this product.

Much easier than using a T60 Torx socket! A must have for belt service on N54/N55 engines. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Schwaben - Corporate Logo
ES#:
3136158
Mfg#:
020023SCH01A
In Stock
ON SALE! SAVE 25%
$67.99

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

$50.99 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

ES#2228184 - 11287628652 - Accessory Belt - Drives power steering pump, alternator and A/C compressor - Genuine BMW - BMW

Drives power steering pump, alternator and A/C compressor

Brand:
Genuine BMW - Corporate Logo
ES#:
2228184
Mfg#:
11287628652
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.

$63.99

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

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N55 E Chassis/ N54 E61 E84

ES#4485241 - 7pk1860 - Performance Kevlar Reinforced Belt - N55 E Chassis/ N54 E61 E84 - 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#:
4485241
Mfg#:
7PK1860
Ships on Dec 8, 2026
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 "Bulletproof" Crank Kit

ES#4642990 - ECSN54BPKRKT - N54 "Bulletproof" Crank Kit - .or at least as "Bulletproof" as your N54 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 N54 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#:
4642990
Mfg#:
ECSN54BPKRKT
Ships on Dec 8, 2026
ON SALE!
$574.99

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

$544.53 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Belt Tensioner Assembly

ES#4830551 - 11287530314 - Belt Tensioner Assembly - Complete tensioner assembly - Bremmen Parts - BMW

Complete tensioner assembly 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830551
Mfg#:
11287530314
In Stock
ON SALE! SAVE 21%
$54.99

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

$43.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 AC Delete Kit

ES#4045332 - n54acdltKT - N54 AC Delete Kit - Includes new idler pulley and shorter belt for deleting your AC compressor - Assembled By ECS - BMW

Includes new idler pulley and shorter belt for deleting your AC compressor 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4045332
Mfg#:
N54ACDLTKT
Ships on Feb 23, 2027
ON SALE! SAVE 18%
$78.99

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

$64.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#2652156 - 11287628653 - Accessory Belt - Drive belt for the A/C and power steering - Continental - BMW

Drive belt for the A/C and power steering We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
2652156
Mfg#:
11287628653
In Stock
$51.99

This product was last offered at the strikethrough price on
10-19-2026

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#251891 - 11287549150 - Accessory Belt - Drives the alternator, A/C compressor, and power steering pump - Continental - BMW
ECS Tuning recommends this product.

Drives the alternator, A/C compressor, and power steering pump We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
251891
Mfg#:
11287549150
In Stock
$40.03

This product was last offered at the strikethrough price on
05-19-2026

$26.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Pulley

ES#21809 - 11287838194 - Hydraulic Alternator Belt Pulley - Hydraulic tensioner pulley for alternator/water pump belt, does not come with tensioner. - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
21809
Mfg#:
11287838194
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.

$250.99

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

$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tensioner Pulley

ES#254055 - 11287841527 - Tensioner Pulley - Used on secondary A/C belt - Genuine BMW - BMW

Used on secondary A/C belt

Brand:
Genuine BMW - Corporate Logo
ES#:
254055
Mfg#:
11287841527
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.

$286.99

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

$262.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upper Idler Pulley

ES#4759442 - 11287556251 - Upper Idler Pulley - The higher idler pulley - Bremmen Parts - BMW

The higher idler pulley 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759442
Mfg#:
11287556251
In Stock
ON SALE! SAVE 25%
$31.99

This product was last offered at the strikethrough price on
07-14-2026

$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Belt - N52

ES#4485239 - 6pk1990 - Performance Kevlar Reinforced Belt - N52 - 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#:
4485239
Mfg#:
6PK1990
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2718483 - 11287837898KT2 - Accessory Belt Kit - Everything you need to service your belt drive system using genuine BMW components - Genuine BMW - BMW

Everything you need to service your belt drive system using genuine BMW components For vehicles with production date from 04/2008

Brand:
Genuine BMW - Corporate Logo
ES#:
2718483
Mfg#:
11287837898KT2
Ships in 3 Business Days
$1084.99

This product was last offered at the strikethrough price on
10-05-2026

$1081.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt - Water Pump/Alternator - S54 S65

ES#4661030 - 6PK1460 - Performance Kevlar Reinforced Accessory Belt - Water Pump/Alternator - S54 S65 - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Replaces BMW # 11287837898 - 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 # 11287837898 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4661030
Mfg#:
6PK1460
Ships on Nov 16, 2026
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Drive Belt Parts

Drive belts transfer crankshaft power to various accessories, including the alternator, water pump, power steering pump, and air conditioning compressor. Replacement of drive belts, serpentine belts, and drive belt tensioners at recommended service intervals helps you avoid untimely breakdowns and expensive vehicle repairs.

Let us help you find the parts that fit your BMW

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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