Fastening screw for crankshaft pulley. Porsche 356 / 912  ›  53902112

Fastening Screw for Crankshaft Pulley

The OE Match Crankshaft Pulley Fastening Screw is a replacement fixing designed to secure the crankshaft pulley on classic Porsche 356 and 912 engines.

Fits:

• Porsche 356 1950-55
• Porsche 356A 1955-59
• Porsche 356B 1959-63
• Porsche 356C 1963-65

This essential fastening component helps maintain correct pulley positioning and reliable operation of the engine's belt-driven cooling fan and generator.

What Does It Do?

The fastening screw secures the crankshaft pulley to the crankshaft, allowing engine rotation to drive the generator and cooling fan through the drive belt.

Why Does It Fail?

Common causes include:

• Damaged or stripped threads
• Corrosion and age-related deterioration
• Incorrect tightening during servicing
• Repeated removal and refitting
• Damage caused by unsuitable tools

When Should It Be Replaced?

Replace if the screw has damaged threads, visible deformation, corrosion or signs of incorrect fastening.

Inspect the fixing whenever the crankshaft pulley is removed during engine servicing or restoration.

Checks & Installation

Inspect the crankshaft threads, pulley mounting surface and associated hardware before installation.

Follow the appropriate Porsche workshop instructions for correct tightening and pulley alignment. Do not reuse a fixing that cannot be secured correctly.

Key Features

• OE Match replacement fastening screw
• Designed for crankshaft pulley assemblies
• Helps maintain secure pulley positioning
• Replaces damaged or missing original hardware
• Suitable for classic Porsche engine restoration

Porsche 356 & 912 Crankshaft Pulley Parts

The crankshaft pulley is an important part of the belt-driven generator and engine cooling system fitted to classic Porsche 356 and 912 models.

Correct fastening hardware helps maintain pulley alignment and reliable operation of the drive belt and associated components.