MMR BMW S55 One Piece Crank Hub Kit for F80 M3, F82 F83 M4, F87 M2 Competition
Stop S55 crank hub slip before it starts. This MMR one piece crank hub kit is the proven BMW S55 crank hub upgrade and S55 crank hub fix for F80 M3, F82 and F83 M4, and F87 M2 Competition owners who want reliability, peace of mind and performance. Ideal for both stock and tuned S55 engines, this one piece hub eliminates the known failure points of the factory three piece crank hub and friction plates. Available with or without the billet aluminium capture plate.
Why upgrade your S55 crank hub
The OEM three piece crank hub on the S55 engine can allow the friction plates to slip, which can cause timing to move and risk piston to valve contact. That can mean a very expensive engine repair. The MMR one piece crank hub and optional capture plate address this weakness directly, giving you a reliable S55 crank hub solution for fast road and track use.
Engineered for strength and reliability
- One piece design prevents friction plate slip for a true S55 crank hub solution.
- Precision machined from billet EN36 steel and heat treated with a 0.75 mm case hardening for outstanding strength and durability.
- New crank bolt tightened correctly provides a major reliability gain over the OE design.
- Optional billet aluminium capture plate securely houses the crank bolt head so it cannot loosen, the ultimate S55 crank hub fix.
- No drilling or modification of the OE crankshaft required, saving installation time and cost.
Real world confidence
We have fitted and used this kit ourselves and our customers have been delighted with the results. It is a go to BMW S55 crank hub upgrade for owners who value reliability, whether the car is standard or running higher power.
Key benefits
- Prevents S55 timing slip and protects your engine investment.
- Perfect for BMW F80 M3, F82 F83 M4 and F87 M2 Competition owners.
- Suited to daily driving, spirited road use and track days.
- Designed to complement further performance upgrades.
- Clear, straightforward installation with no crank drilling.
Choose your kit
- MMR20-1003FK One Piece Crank Hub Kit with Capture Plate.
- MMR20-1001 One Piece Crank Hub only.
Vehicle compatibility
- BMW F80 M3 S55 engine 2012 to 2018.
- BMW F82 and F83 M4 S55 engine 2013 to 2018.
- BMW F87 LCI M2 Competition S55 engine 2016 to 2018.
Fitting and support
Professional installation is recommended. For fitting, choose Nforcd in Warwickshire. Request a quote at Sales@nforcd.com and our team will be happy to help.
Before dispatch we run a compatibility check to confirm fitment using your UK registration or the last 7 digits of your VIN. Simply add your vehicle details at checkout.
Manufactured by
MMR
Search friendly terms
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