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BMW M5 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

$165.99

This product was last offered at the strikethrough price on
06-03-2026

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner

ES#254045 - 11287549873 - Belt Tensioner - Replace a damaged tensioner to restore operation to your belt driven accessories - Genuine BMW - BMW

Replace a damaged tensioner to restore operation to your belt driven accessories affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
254045
Mfg#:
11287549873
Ships in 1-3 days
4% 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
04-06-2026

$171.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E39 M5 Accessory Belt Tensioner Pulley Assembly

ES#21705 - 11282248214 - E39 M5 Accessory Belt Tensioner Pulley Assembly - Tensioner for the water pump, alternator and power steering belt. Does not include hydraulic tensioner. - Genuine BMW - BMW

Tensioner for the water pump, alternator and power steering belt. Does not include hydraulic tensioner. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21705
Mfg#:
11282248214
In Stock
5% off MSRP

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

$446.99

This product was last offered at the strikethrough price on
06-03-2026

$422.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport S85 Power Pulley Kit

ES#3184457 - ppk-s85KT - Turner Motorsport S85 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Adds up to 18 to 22 HP and 17 to 21 Ft/lbs torque on a stock M5 or M6!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3184457
Mfg#:
PPK-S85KT
Ships on Jun 30, 2026
Auto Notify
ON SALE! SAVE 30%
$440.99

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

$308.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#4818523 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Bremmen Parts - BMW

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818523
Mfg#:
11287841228
Ships in 1-2 days
ON SALE! SAVE 22%
$19.99

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

$15.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner

ES#4830644 - 11287549873 - Belt Tensioner - Replace a damaged tensioner to restore operation to your belt driven accessories - Bremmen Parts - BMW

Replace a damaged tensioner to restore operation to your belt driven accessories affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4830644
Mfg#:
11287549873
In Stock
ON SALE! SAVE 20%
$85.99

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

$68.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#3658419 - 11287549873KT - Accessory Belt Kit - Utilizes Genuine BMW components - Genuine BMW - BMW

Utilizes Genuine BMW components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3658419
Mfg#:
11287549873KT
Ships in 1 day
$257.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 M5 A/C Belt Tensioner Pulley Assembly

ES#2628541 - 11281407520 - E39 M5 A/C Belt Tensioner Pulley Assembly - Does not include hydraulic tensioner - Ina - BMW

Does not include hydraulic tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1997

Brand:
Ina - Corporate Logo
ES#:
2628541
Mfg#:
11281407520
In Stock
$60.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#21817 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Genuine BMW - BMW

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21817
Mfg#:
11287841228
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.

$123.34

This product was last offered at the strikethrough price on
06-03-2026

$113.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Hydraulic Tensioner

ES#2628544 - 11281709613 - Accessory Belt Hydraulic Tensioner - Hydraulic tensioner for alternator, water pump and power steering belt, ideal for servicing high mileage tensioner - Ina - BMW

Hydraulic tensioner for alternator, water pump and power steering belt, ideal for servicing high mileage tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2628544
Mfg#:
11281709613
In Stock
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System

ES#3521543 - uppk-s85KT - Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System - Includes accessory drive belt system overhaul kit - Assembled By ECS - BMW

Includes accessory drive belt system overhaul kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3521543
Mfg#:
UPPK-S85KT
Ships on Jun 30, 2026
Auto Notify
ON SALE!
$1353.58

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

$1326.88 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Pulley

ES#21815 - 11287839135 - Accessory Belt Tensioner Pulley - Includes belt tensioner pulley & lever - Genuine BMW - BMW

Includes belt tensioner pulley & lever affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21815
Mfg#:
11287839135
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.

$229.99

This product was last offered at the strikethrough price on
06-03-2026

$216.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Pulley

ES#21814 - 11287839133 - Accessory Belt Tensioner Pulley - Includes belt tensioner pulley & lever - Genuine BMW - BMW

Includes belt tensioner pulley & lever affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21814
Mfg#:
11287839133
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.

$229.99

This product was last offered at the strikethrough price on
06-03-2026

$216.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2695559 - 11282248214KT - Accessory Belt Kit - Utilizes Genuine BMW components - Genuine BMW - BMW

Utilizes Genuine BMW components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2695559
Mfg#:
11282248214KT
Ships in 5 Business Days
$1070.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Protection Cap

ES#21662 - 11281730349 - Protection Cap - Used to cover the securing bolt - Genuine BMW - BMW

Used to cover the securing bolt affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21662
Mfg#:
11281730349
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.

$23.06

This product was last offered at the strikethrough price on
06-03-2026

$22.14 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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