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BMW Engine Drive Belt Parts

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Accessory Belt Tensioner Assembly

ES#3131376 - 11287582946 - Accessory Belt Tensioner Assembly - Mechanical belt tensioner for the A/C and power steering system - Ina - BMW
ECS Tuning recommends this product.

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

Brand:
Ina - Corporate Logo
ES#:
3131376
Mfg#:
11287582946
In Stock
$95.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4636401 - 11287530314KBKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belt - Assembled By ECS - BMW

Utilizes high quality components and our performance Kevlar reinforced belt 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4636401
Mfg#:
11287530314KBKT
Ships in 9 Business Days
Auto Notify
ON SALE! SAVE 18%
$127.99

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

$104.71 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#4830507 - 11288604266 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, power steering and alternator - Bremmen Parts - BMW

This is the main belt tensioner for A/C, power steering and alternator 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830507
Mfg#:
11288604266
In Stock
ON SALE!
$51.99

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

$48.59 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 For Our 25th Anniversary 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

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

Accessory Belt Service Kit

ES#2593604 - 11281748131KT - Accessory Belt Service Kit - Utilizes high quality aftermarket components - includes updated hydraulic alternator tensioner - Assembled By ECS - BMW

Utilizes high quality aftermarket components - includes updated hydraulic alternator tensioner 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2593604
Mfg#:
11281748131KT
In Stock
ON SALE!
$224.99

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

$218.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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
In Stock
$29.99

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

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

Accessory Belt Kit

ES#3651491 - 11288088632KT1 - Accessory Belt Kit - Utilizes factory components - Genuine BMW - BMW

Utilizes factory components

Brand:
Genuine BMW - Corporate Logo
ES#:
3651491
Mfg#:
11288088632KT1
Ships in 7 Business Days
$483.99 USD
Free Shipping
on orders $49 and up
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 For Our 25th Anniversary 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

$478.12 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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
$51.48

This product was last offered at the strikethrough price on
02-17-2026

$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

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 For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4485241
Mfg#:
7PK1860
In Stock
$49.99 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
07-08-2026

$58.99 USD
Free Shipping
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.

$165.99

This product was last offered at the strikethrough price on
07-20-2026

$160.99 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 For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4485242
Mfg#:
8PK1390
In Stock
$52.99 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

$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.

Other BMW Engine Drive Belt 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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