Inner generator pulley nut. Porsche 356 / 912  ›  54709303

Inner Generator Pulley Nut

The OE Match Inner Generator Pulley Nut is a replacement fastening component for the generator pulley assembly fitted to classic Porsche 356 and 912 models.

Fits:

• Porsche 911 1965-1968 912 SWB (F)
• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

Diagram ref no 11

Designed to replace a worn, damaged or missing original component, it helps maintain secure assembly of the generator pulley and supports reliable operation of the engine's belt-driven accessories.

Check the original pulley assembly and part number before ordering.

What Does It Do?

The inner generator pulley nut forms part of the pulley fastening arrangement, helping secure the components that transmit drive from the crankshaft to the generator and cooling fan.

Why Does It Fail?

Common causes include:

• Damaged or stripped threads
• Corrosion and age-related deterioration
• Incorrect tightening during servicing
• Wear from repeated removal
• Damage caused by incorrect tools

When Should It Be Replaced?

Replace if the nut has damaged threads, corrosion or visible deformation, or if it cannot be secured correctly.

Inspect the fastening components whenever the generator pulley or drive belt is removed.

Checks & Installation

Check the condition of the pulley, shaft threads and associated fastening components before fitting.

Ensure correct pulley alignment and belt tension, following the appropriate Porsche workshop instructions.

Key Features

• OE Match replacement fastening component
• Porsche part reference 54709303
• Designed for classic generator pulley assemblies
• Replaces damaged or missing original hardware
• Suitable for engine servicing and restoration

Porsche 356 & 912 Generator Pulley Parts

The generator pulley assembly is an important part of the belt-driven charging and cooling system fitted to classic Porsche engines.

Maintaining the correct pulley fasteners helps ensure secure operation and prevents problems caused by damaged or incorrectly fitted components.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

54709303

The product you are viewing cross references to these numbers