Evolve 4-Pin Crank Hub Fix | BMW S55 & N55 | F80 M3 | F82/F83 M4 | F87 M2

Evolve 2-Piece 4-Pin Crank Hub Fix

BMW S55 & N55 Applications

Protect your BMW engine with the Evolve 2-Piece 4-Pin Crank Hub Fix, engineered to address the potential weakness of the factory crank hub design found in BMW S55 and compatible N55 applications.

The factory crank hub can potentially slip or spin, particularly on modified vehicles, although the issue may also occur on stock vehicles. A slipped crank hub can cause the engine to lose timing and may lead to serious internal engine damage.

Evolve’s solution uses a two-piece design with a four-pin interface that mechanically secures the hub to the original crankshaft. This provides an additional layer of protection for performance builds, tuned vehicles, track cars, and owners seeking preventative protection for their engine.

Manufactured from heat-treated EN36 material commonly used in demanding automotive and aerospace applications, this crank hub is engineered to withstand high loads and extreme operating conditions. The kit includes the required drill bit and alignment guide to assist a properly trained professional during installation.

Product Features

• Designed to address factory crank hub slippage
• Two-piece crank hub construction
• Four-pin mechanical locking design
• Provides additional security between the hub and crankshaft
• Manufactured from heat-treated EN36 material
• Engineered for high-load and performance applications
• Suitable for stock, tuned, and track-focused vehicles
• Includes drill bit
• Includes drill-bit alignment guide
• Designed for installation by a trained BMW technician
• Made in the United Kingdom

Vehicle Fitment

• BMW M3 F80 — S55 engine
• BMW M4 Coupe F82 — S55 engine
• BMW M4 Convertible F83 — S55 engine
• BMW M2 Competition F87 — S55 engine
• BMW M2 F87 — N55 engine

Fitment should be confirmed using the vehicle’s VIN and engine configuration before ordering.

Availability

Available to Order

Contact Uproar Customs for current availability and estimated lead time.

Installation

Professional installation by an experienced BMW engine technician is required. Installation involves drilling and precision engine-timing work and should not be attempted without the proper tools, training, and procedures.

Uproar Customs does not provide installation instructions or technical support for self-installation.