Everything you need to service your belt drive system using genuine BMW components
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Worn hardware should be replaced before it fails
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Secures the top of the hydraulic alternator belt tensioner assembly to the bracket
Bolted directly to the crankshaft, acts as a belt drive
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with automatic transmission only
Brand:
ES#:
20416
Mfg#:
11227558083
Ships in 3 Business Days
12% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$789.99
This product was last offered at the strikethrough price on 06-03-2026
For removal and installation of harmonic balancers on most automotive and light truck applications.
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Protect your drive belt and engine!
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Replacement pulley for your accessory belt tensioner - Doesn not include the arm or hydraulic tensioner
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...or at least as "Bulletproof" as your E9X N55 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.
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Brand:
ES#:
4365385
Mfg#:
ECSE90N55BPKT
In Stock
ON SALE!
$573.99
This product was last offered at the strikethrough price on 03-19-2026
An important belt drive component
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Brand:
ES#:
4845404
Mfg#:
11287578675
In Stock
ON SALE!
SAVE 21%
$27.99
This product was last offered at the strikethrough price on 05-02-2026
Our Kevlar accessory Belts are a performance alternative to a traditional belt. Replaces BMW # 11287841529
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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
