Vargas "Spine Lock" Crank Hub - BMW N55/S55

Product Details

The VTT N55/S55 Spline Lock Hub offers a sophisticated, non-invasive alternative to the labor-intensive "drill and pin" methods used to secure BMW crankshafts. Designed for a straightforward "stock-style" installation, this hub presses into place using the factory crank bolt, significantly reducing the labor hours required for a complete crank hub service. The Spline Lock system provides a superior mechanical interface by compressing the metal of the crankshaft snout rather than removing it, ensuring structural integrity is maintained. This "Hub Only" option is ideal for professional shops or experienced DIYers who already have the necessary supporting hardware (such as the Crank Bolt Capture and fresh OEM bolts) and are looking for the strongest hub core on the market.

Key Features

• Direct Replacement Fitment: Installs in the same manner as the OEM hub, utilizing the crank bolt to press the unit into position.

• Enhanced Surface Hardness: Manufactured from high-grade tool steel to resist wear and deformation under extreme stress.

• Zero Drilling Required: Minimizes the potential for technician error and engine contamination during the installation process.

• Self-Centering Accuracy: High-tolerance machining ensures perfect alignment with the timing chain and oil pump drive.

• Lifetime Peace of Mind: Engineered to exceed the life of the engine, even under competitive racing conditions.

Specifications

• Manufacturing Process: Multi-axis CNC precision machining.

• Material Grade: 440C Tool Steel (optimized for durability and toughness).

• Rockwell Hardness: HRC60.

• Dimensions: 6 x 6 x 6 inches (packaged).

• Fitment Range: F-Series and E-Series BMWs equipped with N55 or S55 engines (M2, M3, M4, 335i, 435i, etc.).

• Mandatory Requirement: Must be installed using BMW-specific timing alignment tools.

Prop 65 Warning

Product Q&A

Lifetime Replacement

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