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BMW E39 Alternator Belt Tensioners

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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 Alternator Belt Tensioner Conversion Kit

ES#517967 - 11287838797 - Hydraulic Alternator Belt Tensioner Conversion Kit - Complete conversion kit for converting alternator tensioner over to the more reliable hydraulic tensioner design - Assembled By ECS - BMW

Complete conversion kit for converting alternator tensioner over to the more reliable hydraulic tensioner design 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
517967
Mfg#:
11287838797
In Stock
ON SALE!
$113.99

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

$110.42 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Assembly

ES#3129598 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - URO - BMW

Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
3129598
Mfg#:
11287838797
In Stock
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner Assembly

ES#2813369 - 11287515865 - Belt Tensioner Assembly - Includes both rollers for accessory belt - Hamburg Tech - BMW

Includes both rollers for accessory belt We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/1998

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813369
Mfg#:
11287515865
In Stock
$73.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Alternator Belt Tensioner Assembly

ES#2162740 - 11281427252 - Mechanical Alternator Belt Tensioner Assembly - Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. - Ina - BMW
ECS Tuning recommends this product.

Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2162740
Mfg#:
11281427252
Ships in 1 day
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#2137092 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Ina - BMW
ECS Tuning recommends this product.

Replacement is recommend with every belt service We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2137092
Mfg#:
11281748131
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
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.

Brand:
Genuine BMW - Corporate Logo
ES#:
21705
Mfg#:
11282248214
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.

$446.99

This product was last offered at the strikethrough price on
07-21-2026

$432.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#4818522 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Bremmen Parts - BMW

Replacement is recommend with every belt service 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818522
Mfg#:
11281748131
In Stock
ON SALE! SAVE 19%
$18.99

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

$15.29 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 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

Hydraulic Alternator Belt Tensioner Assembly

ES#2873679 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - Febi - BMW
ECS Tuning recommends this product.

Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873679
Mfg#:
11287838797
Ships on Oct 16, 2026
$83.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Belt Tensioner Assembly

ES#21726 - 11287515865 - Belt Tensioner Assembly - Includes both rollers for accessory belt - Genuine BMW - BMW

Includes both rollers for accessory belt For vehicles with production date from 09/1998

Brand:
Genuine BMW - Corporate Logo
ES#:
21726
Mfg#:
11287515865
Ships in 2 Business Days
3% 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
07-21-2026

$221.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner

ES#2696132 - 11281717188 - Hydraulic Alternator Belt Tensioner - Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner - Ina - BMW

Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2696132
Mfg#:
11281717188
Ships in 1 day
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Hydraulic Tensioner

ES#21647 - 11281709613 - Accessory Belt Hydraulic Tensioner - Hydraulic tensioner for alternator, water pump and power steering belt, ideal for servicing high mileage tensioner - Genuine BMW - BMW

Hydraulic tensioner for alternator, water pump and power steering belt, ideal for servicing high mileage tensioner For vehicles with production date from 09/1997

Brand:
Genuine BMW - Corporate Logo
ES#:
21647
Mfg#:
11281709613
Ships in 2 Business Days
6% off MSRP

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

$125.99

This product was last offered at the strikethrough price on
07-21-2026

$118.99 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
$7.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - M8x50mm

ES#14587 - 07119904533 - Hex Bolt - M8x50mm - Worn hardware should be replaced before it fails - Genuine BMW - BMW MINI

Worn hardware should be replaced before it fails Secures the lower portion of the hydraulic alternator belt tensioner to the assembly

Brand:
Genuine BMW - Corporate Logo
ES#:
14587
Mfg#:
07119904533
In Stock
$4.09 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley for Water Pump / Alternator Belt

ES#3673362 - 5320293100 - Idler Pulley for Water Pump / Alternator Belt - Keep your alternator turning properly. - Ina - BMW

Keep your alternator turning properly. We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3673362
Mfg#:
5320293100
In Stock
$31.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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