Gintani S55 Keyed Crank Hub Upgrade Kit - BMW F87 M2 Competition, F80 M3, F82/F83 M4 (F8X) - One-Piece Crankshaft Hub Fix, Spun Hub/Timing Hub Solution - Anti-Slip Keyed Conversion with Installation Tools

Gintani S55 Keyed Crankshaft Hub Conversion for F8X M2 Competition, M3 and M4

Protect your S55 engine from timing movement with Gintani’s one piece keyed crankshaft hub assembly. This proven conversion locks the crank to the timing gear to combat rotation under load, giving you confidence to drive hard on road, strip or circuit. If you are dealing with the well-known S55 timing hub issue on the BMW F87 M2 Competition, F80 M3 or F82 F83 M4, this keyed hub kit is the dependable solution UK enthusiasts choose for long term reliability.

Why enthusiasts choose this hub conversion

The factory S55 friction-only hub can shift during rapid RPM changes, which can lead to cam timing scatter and serious internal damage. Gintani’s single piece keyed design positively locates the hub on the crank, maintaining precise timing on both stock and tuned cars. It is a robust, track-proven answer for manual and DCT applications across the F8X platform.

Highlights

• One piece keyed hub design to help prevent timing slip on S55 engines
• Securely torqued assembly for consistent cam timing on standard and high output builds
• Precision CNC machined by Gintani in Los Angeles, California
• Includes dedicated installation aids for accurate alignment during fitting
• Developed specifically for BMW S55 in F87 M2 Competition, F80 M3 and F82 F83 M4

What is in the box

• Gintani F8X one piece keyed crankshaft hub
• Gintani upgraded crank bolt
• Temporary installation crank bolt
• Key hole drill bit and precision drill block

Also required to complete the job

You will need the Genuine BMW S55 F80 F82 Crank Hub Installation Kit to finish the installation.

Compatibility

• BMW M2 Competition F87 LCI 3.0 Twin Turbo S55 2018+
• BMW M3 F80 3.0 Twin Turbo S55 2014 - 2020
• BMW M4 F82 F83 3.0 Twin Turbo S55 2014 - 2020

Real world results

We have fitted this Gintani keyed hub on customer S55 builds and our own cars, and it has delivered the reliability our clients expect. Feedback has been consistently positive, with owners praising the peace of mind and confidence to push their M cars without worrying about timing movement.

Professional fitting

We strongly recommend specialist installation. MJ Modifications offers in-house fitting in Warwickshire. For a tailored quote and booking, email info@mjmodifications.co.uk.

Part number

GS55CHV1

Manufacturer

Gintani

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