Utilizes high quality aftermarket components
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with production date from 09/1998
Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date from 09/2002
Drives accessories; located at the end of the crankshaft
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with a production date up to 09/1998
Brand:
ES#:
20526
Mfg#:
11231738620
Ships in 9 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.
$826.99
This product was last offered at the strikethrough price on 06-03-2026
Reduces vibrations and connects accessories
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date from 09/2002
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! With gains of up to 11HP!
Brand:
ES#:
3027885
Mfg#:
PPK-MZ4
Ships in 6 Business Days
ON SALE!
SAVE 25%
$347.99
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!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3082345
Mfg#:
PPK-S54-A-TKT
Ships in 6 Business Days
ON SALE!
SAVE 25%
$347.99
This product was last offered at the strikethrough price on 05-02-2026
...or at least as "Bulletproof" as your F8X S55 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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4365387
Mfg#:
ECSS55BPKT
Ships on Aug 6, 2026
ON SALE!
$786.99
This product was last offered at the strikethrough price on 01-03-2026
...or at least as "Bulletproof" as your F8X S55 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. Featuring Kevlar reinforced belt!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4642991
Mfg#:
ECSS55BPKRKT
Ships in 8 Business Days
$761.99
This product was last offered at the strikethrough price on 03-09-2026
The center bolt for the crank pulley
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4689986
Mfg#:
11211439395
In Stock
ON SALE!
SAVE 20%
$18.99
This product was last offered at the strikethrough price on 05-02-2026
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
