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Product warranty: 24 months
The MEHENKER® reinforced crank hub was developed for BMW S55 and N55 engines, well known for OEM hub failures at higher power levels. Tested on engines exceeding +1000 HP, it delivers unmatched durability and reliability for motorsport and high-performance tuning.
Designed and manufactured in Poland by MEHENKER® – the first Polish company specializing in timing and VVT technologies. The hub features a unique toothed surface that “bites” into the crankshaft, completely eliminating the risk of slippage. Installation requires no crankshaft modifications.
The hub and sprockets are machined from a single piece of high-strength tool steel. The sprocket teeth are induction-hardened, ensuring extreme resistance to wear and superior strength compared to OEM parts.
Proven performance at +1000 HP
Special tooth profile preventing hub slippage
No crankshaft modifications required
Induction-hardened teeth for extreme durability
Eliminates risk of timing failure and valve collision
Designed for motorsport and professional tuning
Fits BMW engines:
N55
S55
Models: BMW M2, M3, M4 and other vehicles with N55/S55 engines.
OEM BMW hubs are prone to loosening at high power, causing severe and costly engine damage. The MEHENKER® solution eliminates this weakness with innovative design and premium steel, guaranteeing reliability even under extreme motorsport conditions.
| OEM part number | 11237574827, 11317502180, 11417552899 |
| Engine codes | N55B30, S55B30 |
| Number of crankshaft gear teeth | 19/21 |
| Engines | 3.0L R6 |