Kotte Performance Crank Hub BMW M3 M4 F80 F82

The problems with the three-piece crankshaft hub on S55 engines are well known, and are the main cause of S55 engine failure.

The crank bolt can loosen due to engine vibration, which means that at the slightest loss of torque, the timing gears will no longer be correctly aligned. With well-known, potentially disastrous consequences

The radical solution remains a billet hub keyed to the crankshaft nose for the wildest builds.

The Kotte Performance solution replaces the standard three-piece crank hub with a robust one-piece design. This one-piece part offers greater stability and reliability by eliminating the risk of timing misalignment. This upgrade is crucial for the performance and longevity of S55 engines and offers a permanent improvement over the original design.

We already offered the MMX hub, but the Kotte Performance crank hub was often requested. Now it's done, with this well-known and respected product.

• One-piece
• Billet anti-rotation
• Drilling and swarf-collection kit included

Team Lupos tip:

"For track cars and high-powered cars, we recommend doing the full job with chain, chain guide and all seals, so you can drive with zero doubt"