Nissan Fairlady/300ZX Z32 Crank Pulley Bolt

This Nissan crankshaft pulley bolt (often called the crank bolt). It secures the crank pulley/harmonic balancer to the crankshaft and is a critical high-torque fastener in the engine’s rotating assembly. This bolt maintains proper clamping force to prevent pulley movement, ensuring stable operation of accessory drives and correct engine timing reference. Because it is subjected to high torque loads, it must meet strict OEM strength specifications and is typically reused only if within spec or replaced during major service like timing belt jobs.

• USDM 300ZX (Z32): 1990–1996 (naturally aspirated and twin-turbo models)
• JDM Fairlady Z (Z32): 1989–1996 (naturally aspirated and twin-turbo models)