You can't put a price on piece of mind. A simple bolt on solution to keep your engine safe from catastrophic failure.
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Brand:
ES#:
4674312
Mfg#:
049453LA01-02
In Stock
ON SALE!
SAVE 25%
$132.99
This product was last offered at the strikethrough price on 06-13-2026
Includes belt, tensioner and idler pulley
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Brand:
ES#:
3160979
Mfg#:
11287628661KT
In Stock
ON SALE!
SAVE 21%
$128.99
This product was last offered at the strikethrough price on 01-03-2026
Prevent your sepentine belt from being sucked into your engine!
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Keep your A/C system operating properly.
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Brand:
ES#:
2800503
Mfg#:
11287628661
In Stock
$51.48
This product was last offered at the strikethrough price on 02-17-2026
Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt.
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Replace this any time you remove the damper. This is the also the S55 crank hub bolt!
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Brand:
ES#:
2498174
Mfg#:
11217614270
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.
$42.70
This product was last offered at the strikethrough price on 06-18-2026
Also referred to as a harmonic balancer
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...or at least as "Bulletproof" as your F3X 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#:
4365386
Mfg#:
ECSF30N55BPKT
In Stock
ON SALE!
$515.99
This product was last offered at the strikethrough price on 01-03-2026
...or at least as "Bulletproof" as your F3X 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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Includes 5w-40 oil which is a slighty higher viscosity than recommended by BMW - great for performance ap
Brand:
ES#:
4660307
Mfg#:
ECSF30N55BP540KT
In Stock
ON SALE!
$513.99
This product was last offered at the strikethrough price on 01-03-2026
Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle!
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Brand:
ES#:
4876647
Mfg#:
049453LA01-02KT6
In Stock
ON SALE!
SAVE 46%
$180.99
This product was last offered at the strikethrough price on 05-05-2026
Remove and install OAD alternator pulleys
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Brand:
ES#:
11415
Mfg#:
BTA-13PCS
In Stock
ON SALE!
SAVE 30%
$78.99
This product was last offered at the strikethrough price on 05-02-2026
Directs the accessory serpentine belt.
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Brand:
ES#:
4830650
Mfg#:
11288673720
In Stock
ON SALE!
SAVE 10%
$27.99
This product was last offered at the strikethrough price on 05-02-2026
...or at least as "Bulletproof" as your F3X 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. Featuring Kevlar reinforced belt!
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Brand:
ES#:
4642987
Mfg#:
ECSF30N55BPKRKT
In Stock
ON SALE!
$520.99
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
