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BMW 135i Engine Drive Belt Parts

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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!
$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

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

Lower Idler Pulley

ES#4830505 - 11287557851 - Lower Idler Pulley - The lowest of the idler pulleys on the accessory drive belt. - Bremmen Parts - BMW

The lowest of the idler pulleys on the accessory drive belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830505
Mfg#:
11287557851
In Stock
ON SALE!
$23.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#3131378 - 11287578675 - Idler Pulley - An important belt drive component - Ina - BMW
ECS Tuning recommends this product.

An important belt drive component We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3131378
Mfg#:
11287578675
In Stock
$42.99

This product was last offered at the strikethrough price on
10-16-2026

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#2562556 - 11287568247 - Accessory Belt - Drives power steering pump, alternator and A/C compressor - Continental - BMW
ECS Tuning recommends this product.

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

Brand:
Continental - Corporate Logo
ES#:
2562556
Mfg#:
11287568247
In Stock
$33.17

This product was last offered at the strikethrough price on
08-13-2026

$28.28 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2681866 - 11287582946KT - 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

Brand:
Genuine BMW - Corporate Logo
ES#:
2681866
Mfg#:
11287582946KT
Ships in 1-2 days
$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Deflection Pulley

ES#3131377 - 11287578674 - Deflection Pulley - A/C belt idler pulley - Ina - BMW
ECS Tuning recommends this product.

A/C belt idler pulley We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3131377
Mfg#:
11287578674
In Stock
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Idler Pulley

ES#2580611 - 11287557851 - Lower Idler Pulley - The lowest of the idler pulleys on the accessory drive belt. - Ina - BMW
ECS Tuning recommends this product.

The lowest of the idler pulleys on the accessory drive belt. We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2580611
Mfg#:
11287557851
In Stock
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Idler Pulley

ES#2593863 - 11287556251 - Upper Idler Pulley - The higher idler pulley - Ina - BMW
ECS Tuning recommends this product.

The higher idler pulley We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2593863
Mfg#:
11287556251
Ships in 4 Business Days
$40.99

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

$29.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Deflection Pulley

ES#4845406 - 11287578674 - Deflection Pulley - A/C belt idler pulley - Bremmen Parts - BMW

A/C belt idler pulley 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4845406
Mfg#:
11287578674
In Stock
ON SALE!
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#21777 - 11287563927 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, Alternator, and power steering. - Genuine BMW - BMW

This is the main belt tensioner for A/C, Alternator, and power steering.

Brand:
Genuine BMW - Corporate Logo
ES#:
21777
Mfg#:
11287563927
In Stock
6% off MSRP

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

$179.99

This product was last offered at the strikethrough price on
11-02-2026

$168.99 USD
Free Shipping
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
$7.99

This product was last offered at the strikethrough price on
09-11-2026

$7.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#4845404 - 11287578675 - Idler Pulley - An important belt drive component - Bremmen Parts - BMW

An important belt drive component 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4845404
Mfg#:
11287578675
In Stock
ON SALE!
$23.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2581872 - OEN54BLTKT - 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

Brand:
Genuine BMW - Corporate Logo
ES#:
2581872
Mfg#:
OEN54BLTKT
Ships in 1-2 days
$374.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 "Bulletproof" Crank Kit

ES#4365385 - ECSe90n55bpKT - 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. - 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. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4365385
Mfg#:
ECSE90N55BPKT
In Stock
ON SALE!
$606.99

This product was last offered at the strikethrough price on
10-15-2026

$585.40 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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

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Manufacturer names and/or part numbers are used only for identification purposes.

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