Hydraulic tensioner for water pump belt, just tensioner, does not come with relay lever assembly
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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 10-29-2026
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!
Everything needed to service your drive belts
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#:
3136896
Mfg#:
11287838226KT1
Ships in 1-2 days
$917.99
This product was last offered at the strikethrough price on 08-24-2026
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
Brand:
ES#:
4818523
Mfg#:
11287841228
In Stock
ON SALE!
SAVE 20%
$19.99
This product was last offered at the strikethrough price on 05-02-2026
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 18 to 22 HP and 17 to 21 Ft/lbs torque on a stock M5 or M6!
Brand:
ES#:
3184457
Mfg#:
PPK-S85KT
In Stock
ON SALE!
SAVE 25%
$449.99
This product was last offered at the strikethrough price on 06-13-2026
Includes belt tensioner pulley & lever
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#:
21815
Mfg#:
11287839135
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.
$229.99
This product was last offered at the strikethrough price on 10-29-2026
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
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 10-29-2026
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 10-29-2026
Includes accessory drive belt system overhaul kit
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#:
3521543
Mfg#:
UPPK-S85KT
Ships in 1-2 days
ON SALE!
$1399.43
This product was last offered at the strikethrough price on 10-28-2026
Includes belt tensioner pulley & lever
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#:
21814
Mfg#:
11287839133
Ships in 1-2 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 10-29-2026
Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Replaces BMW # 11287838226 and 11287835482
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
Hydraulic tensioner for water pump belt - does not include relay lever assembly
2X 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
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
