Free additional power to your M3’s rear wheels without sacrificing or compromising your BMW’s reliability.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power Steering Pump
Brand:
ES#:
4066944
Mfg#:
10.00.011
Ships in 10 Business Days
$349.00 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
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Hydraulic tensioner for water pump belt, just tensioner, does not come with relay lever assembly
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
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.
$193.99
This product was last offered at the strikethrough price on 10-26-2026
Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat! For vehicles with a production date up to 04/2008
Hydraulic tensioner pulley for alternator/water pump belt, does not come with tensioner.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
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 10-26-2026
Controls the amount of tension on pulley
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
258959
Mfg#:
11287841546
Ships in 1-2 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.
$193.99
This product was last offered at the strikethrough price on 10-26-2026
Everything you need to service your belt drive system using genuine BMW components
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with production date from 04/2008
Brand:
ES#:
2718483
Mfg#:
11287837898KT2
Ships in 1-2 days
$1084.99
This product was last offered at the strikethrough price on 10-05-2026
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 Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4661030
Mfg#:
6PK1460
Ships on Nov 16, 2026
$33.99 USD
Free Shipping
on orders $49 and up
Lifetime Replacement
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Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
For vehicles with a production date up to 04/2008
Brand:
ES#:
4818523
Mfg#:
11287841228
In Stock
ON SALE!
SAVE 22%
$19.99
This product was last offered at the strikethrough price on 05-02-2026
Helps guide and keep tension on the belt.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For Vehicles With A Counterclockwise Power Steering Pump Only
Brand:
ES#:
254057
Mfg#:
11287841531
Ships in 2 Business Days
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$123.99
This product was last offered at the strikethrough price on 06-03-2026
Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply For vehicles with a production date up to 04/2008
Brand:
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 10-26-2026
Keep your air conditioning belt tight
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
21804
Mfg#:
11287835422
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.
$193.99
This product was last offered at the strikethrough price on 10-26-2026
Keep your accessories turning
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises!
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Adds up to 10-14hp and 7-9ft/lbs torque on a stock M3 For vehicles with a production date from 05/2008+ & a counterclockwise rotating Power Steering Pump
Brand:
ES#:
3251754
Mfg#:
PPK-S65-LKT
Ships on Mar 29, 2027
ON SALE!
SAVE 25%
$546.99
This product was last offered at the strikethrough price on 06-13-2026
$410.24 USD
Free Shipping
Lifetime Replacement
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Pulleys drive accessories essential to vehicle operation. Whether you need to install a stock original equipment pulley during a repair, or improve engine performance and appearance with a lightweight aluminum or underdrive pulley, count on ECS Tuning for pulley solutions that work.
Lifetime Replacement
