Belt Drive Blower Crank Assembly

The ENDERLE Belt Drive Blower Crank Assembly (Part No. 5019BL) is a precision crankshaft mandrel engineered for high-performance supercharger applications. This 1-inch diameter aluminum and steel component features a 6-hole blower pulley bolt pattern, providing the mechanical foundation necessary for reliable belt-driven blower integration on engines requiring OEM-specification crankshaft modifications. The assembly delivers the dimensional accuracy and material consistency that professional engine builders and performance shops depend on for consistent power delivery and component longevity.

Measuring 3.45 x 3.05 x 4.55 inches and weighing just 0.97 lbs, this mandrel integrates into existing supercharger systems without adding excessive rotating mass. The hybrid aluminum and steel construction balances weight reduction with the structural rigidity required to withstand sustained boost pressures and high RPM operation. The standardized 6-hole pattern ensures compatibility with ENDERLE's ecosystem of blower components and aftermarket supercharger assemblies designed around this proven configuration. Proper installation requires alignment with the engine block's crankshaft centerline and verification against your specific blower manufacturer's bolt-circle diameter specifications.

This crank assembly is the choice for engine builders, vintage hot rod shops, and street performance enthusiasts restoring or upgrading carbureted and fuel-injected engines to forced-induction specifications. It's particularly suited for applications where OEM or reproduction crankshafts lack factory blower provisions, requiring a precision mandrel to accept the pulley system. Professional installation with torque specifications per ENDERLE documentation is essential to maintain concentricity and prevent harmonic imbalance during high-load operation.