2015 Bmw M3 Crank Hub Upgrade
By the Editorial Staff
March 16, 2026
A failed hub that has spun will cause the engine valve timing to skip or jump, potentially causing widespread engine damage. This new double. In summary, the crank hub upgrade is a significant investment that can enhance your BMW M3's performance and reliability.
Understanding the costs involved will help you make an informed decision, ensuring that your vehicle remains a joy to drive for years to come. BMW M3 / M4 / M2C S55 One Piece Crank Hub / CrankHub /4 pin solution BILLETT Issues relating to the standard three-piece crank hub on the S55 & N55 engine are (unfortunately) widely known, but these are fully addressed with the installation of the Vis Motorsport one. The keyed crank hub upgrade is a replacement of your stock crank hub unit with a unit that has four "keys" or "pins" for which 4 holes are drilled into the S55 crankshaft so that upon installation of the crankshaft bolt the new keyed crank hub can be locked into place permanently without a chance of relative rotation to the crankshaft.
Proudly made and machined in the USA Kit includes: Crank Hub Timing Assembly 4 Pin Oil Pump Sprocket OEM Crank Bolt Specialty Drill Bit Drill Fixture Tool Drill Fixture Bolt Fitment: 2015-2019 BMW M3 (F80 Chassis) 2015-2020 BMW M4 (F82 F83 Chassis) 2017-2021 BMW M2 Competition (F87 Chassis). The Mosselman Crankhub Upgrade for the BMW M3/M4 F8x S55 offers a vast improvement in terms of engine safety. We recommend the crank hub modification for heavily tuned engines that put increased levels of strain on the crank hub and sprocket.
The Single Crank Hub kits are designed and manufactured in Lithuania and made from a solid block of thermally absorbed, heat treated steel and milled on a 5 axis precision CNC machine to create what we believe to be the strongest crank hub kit on the market today!The crank hub is offered in a 2 pin and upgraded 4 pin design for those looking. S55 engine crank hub upgrade service One of our signature services offered to enthusiast owners of M2, M3, and M4 BMW's with the S55 Crank Hub Upgrade engine. One potential weakness within this engine exists within the crankshaft and its interface between it and the timing chain hub which connects the cylinder head valvetrain to the crankshaft.
VTT 'Spline Lock' Crank hubs are CNC manufactured from 440C tool Steel with a Rockwell rating of HRC60 for the ultimate in durability, and toughness. This Kit comprises of VTT Crank Hub Upgrade, OE Oil Sprocket, OE crank Bolt and Capture Plate. Description 4 pin design to ensure the hub wont spin, even with heavily modified S55s Laser scanned to ensure perfect fitment - direct replacement for stock Designed and machined in-house with our CNC mills Machined from heat treated 4130 Chromoly Compatible with all S55 M models 2014-2018 BMW F80 M3 2014+ BMW F82 M4 2019+ BMW F87 M2 Competition & M2 CS Dealer pricing available.
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