SKU: 97390450804

BM PERFORMANCE CENTRE MMR CRANK HUB & CAPTURE COMPLETE KIT FOR BMW M3 F80 M4 F82 F83 & M2 COMPETITION F87 S55

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Description

BM PERFORMANCE CENTRE MMR CRANK HUB & CAPTURE COMPLETE KIT FOR BMW M3 F80 M4 F82 F83 & M2 COMPETITION F87 S55WHAT IS A CRANK HUB? Issues relating to the standard three piece crank hub on the S55 engine are widely known, but these are fully addressed with the installation of the MMR Performance one piece billet crank hub and capture plate. The OE units friction plate are known to slip, causing the timing to alter enough that piston to valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive

WHAT IS A CRANK HUB?

Issues relating to the standard three-piece crank hub on the S55 engine are widely known, but these are fully addressed with the installation of the MMR Performance one-piece billet crank hub and capture plate.

The OE units friction plate are known to slip, causing the timing to alter enough that piston-to-valve contact can occur and, if not totally standard and within the warranty period, leaves owners with a very expensive repair bill! We have seen several of these through our workshop, we highly recommend fixing the crank hub issue for any engine that has completed over 60,000km and is used on track days or hard downshifting.

MMR developed a product that would ensure owners of standard power outputs have complete peace of mind, as much as those that wish to increase the power and torque output without having to worry; MMR have engineered one of the most comprehensive solution on the market and at one of the most compelling price points. 

The MMR Performance one-piece crank hub is machined from billet EN36 that's been heat-treated with a 0.75mm case hardening, making it incredibly strong and durable. 

The one-piece design ensures the friction plates can't slip and with a new crank bolt tightened appropriately, this alone delivers a substantial improvement in reliability versus the OE version.

For the ultimate solution, which then also removes the possibility for this bolt to be able to loosen, we recommend an additional billet aluminium capture plate that securely houses the whole head of the crank bolt, making it near impossible for it to come undone.  

Careful design has also allowed MMR to develop a solution that's easy to install compared to some other products as there's no drilling or modification required to the OE crankshaft, which saves you time and ultimately money, too.

WHY DO I NEED IT?

If your BMW M3 F80, M4 F82, F83 or M2 Competition F87 S55 is track used, modified or heavily modified installing the MMR Crank Hub is highly recommended. A spun crank can lead to engine failure with repair costs in excess of $20,000 or if slightly luckier, broken down until vehicle is sent back to workshop for the crank hub to be replaced anyway and the engine retimed.

The SCH (Spun Crank Hub) failure has been seen on both stock and modified S55 engines. If you are modifying your car, doing track work or driving hard then upgrading the crank hub in your S55 powered M car is a fail safe you will not regret.

100% BULLETPROOF.

As it stands there is a 100% success rate of the MMR Crank Hub.

 MMR PERFORMANCE CRANK HUB BUNDLE INCLUDES:

  • MMR Performance Crank Hub (Part No. MMR20-1003FK)

  • MMR Crank Bolt Capture (Part No. MMR20-1002)

  • Genuine BMW Parts OEM Crank Bolt (Part no. BM-11217614270)

  • Genuine BMW Parts OEM Valve Cover Gasket (Part no. BM-11127587804)

  • Genuine BMW Parts OEM Cam Bolts (2) (Part no. BM-11367524954)

  • Genuine BMW Parts OEM Engine Inspection Plug (2) (Part no. BM-11117849396)

  • Genuine BMW Parts OEM Front Main Seal (Part no. BM-11118618864)

  • Genuine BMW Parts OEM Brake Booster Vacuum Pump Seal Cap (Part no. BM-11117530262)

  • Genuine BMW Parts OEM Oil Pump Chain Tensioner Access Cap (Part no. BM-11117615131)

  • Genuine BMW Parts OEM Sump Gasket (Part no. BM-11137600482)

  • Genuine BMW Parts OEM Sump Bolts (Part no. BM-11132210959)

  • MAHLE or MANN Filter Oil Filter

INSTALLATION:

BM Performance has extensive experience in installing thgese crank bubs including on our own F80 M3 track car. Installation of any crank hub solution is extensive and must be carried out by highly qualified technicians only, the oil pan, valve covers, subframe, steering and suspension must be removed and re-installed. BMW-Specific specialty tools are required in order to set the engine cam and valve timing.

WARNING: Improper installation may cause irreversible engine damage.

INSTALLATION TIPS:

  1. This is a great time to upgrade your turbos as everything is out of the way.
  2. For high output or high km builds it is also a great time to replace the rod bearings, everything is out of the way and ready to go for a very quick and easy installation.
  3. Many components, bolts and hardware are single-use only, please ensure no bolts are re-used during this installation that should not be.
  4. The oil system must be primed prior to re-starting the engine due to the crankcase being opened up and pressure being released.

 

APPLICATIONS:

  • BMW M3 F80 (2014-2018)

  • BMW M3 F80 Competition (2016-2018)

  • BMW M4 F82/F83 (2014-2020)

  • BMW M4 F82/F83 Competition (2016-2020)

  • BMW M4 GTS F82 (2016)
  • BMW M2 CS F87 (2020)
  • BMW M2 Competition F87 (2018-2020)



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    Exchange/Return Notes
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    SKU: 97390450804

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    Works great and so much fun!
    Color: Black
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    Reviewed in the United States on February 15, 2026
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    Nick
    Cuba, US
    ★★★★★ 3
    Disappointed
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    Powerful, but the description differs from the actual specifications, and the speed cannot be adjusted.
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    Reviewed in the United States on March 15, 2026
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    Beach Dreamer
    Cuba, US
    ★★★★★ 5
    The perfect whipper for protein powders
    Color: Blue
    Love, love this whipper. Had to finally replace my old one that I got several years ago that was battery operated. This rechargeable replacement is incredible. Thought I would miss my old one, but no. The 3 interchangeable attachments make it my go to for a ton of things. Perfect for mixing protein powders!
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    Reviewed in the United States on February 23, 2026
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    Amazon Customer
    Dallas, US
    ★★★★★ 5
    Epic. Works great.
    Color: Black
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    I'm A Zon
    Whiting, US
    ★★★★★ 5
    You want this one, for power and quality and saving on AA battery costs
    Color: Black
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    Reviewed in the United States on September 20, 2025

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