Description

MMX BMW N55/S55 4-Pinned One-Piece Crank Hub is the higher-retention MMX hub option for demanding N55 and S55 builds. The one-piece hub replaces the original friction-based multi-piece arrangement, while four positive locating pins are used to resist timing movement.

This exact official variant is supplied without an MMX capture plate. The supplied MMX dealer list specifies a drill bit, drill guide and OE bolt with SKU MMR20-1004.

Key features

• Four-pinned one-piece crank-hub design
• Developed for high-output N55 and S55 engines
• Drill bit, drill guide and OE bolt listed with this SKU
• Capture plate is not included
• Exact official MMX product image

Fitment: compatible BMW N55/S55 applications across F2x, F3x, F80, F82 and F87 chassis. Confirm the engine and crank-hub interface before ordering.

Installation: professional specialist installation is essential. Follow the supplied machining, timing, torque and replacement-hardware procedures.

SKU: MMR20-1004

Exact current official MMX image of the four-pinned hub and pins.