Clutch pressure plate bolt, M8 x 80. Porsche 930 Turbo 1978-89 / 928 1978-83  ❭  90007413603

Clutch pressure plate bolt
OE Match clutch pressure plate bolt for Porsche 930 Turbo models from 1978–89 and Porsche 928 models from 1978–83. This M8 x 80 hexagon-head fastener corresponds to reference number 90007413603.
Sold individually

Fits:
Porsche 930 1978 - 1989
Porsche 928 1978 - 1983

Diagram ref no 16.

What This Product Does

This bolt forms part of the clutch fixing assembly, securing the pressure plate and associated starter-ring assembly in the correct position. Correct fasteners and tightening procedures help the clutch assembly remain evenly seated.

Functions

• Secures the clutch pressure plate assembly
• Maintains accurate positioning of the attached components
• Withstands the rotational forces and heat cycles found within the clutch assembly
• Provides the specified M8 x 80 fixing dimensions for the listed applications

Technical Details

• OE reference: 90007413603
• Fastener type: hexagon-head bolt
• Thread and length: M8 x 80
• Diagram reference: 16
• Sold EACH.

Symptoms of Fault

• Damaged, rounded or corroded bolt head
• Worn, stretched or contaminated threads
• Clutch vibration or noise caused by loose or unevenly tightened hardware
• Difficulty achieving the specified tightening torque
• Distortion caused by incorrect or mixed bolt lengths

Why Replacement Matters

Clutch hardware is exposed to repeated heat cycles, vibration and mechanical load. A damaged or unsuitable bolt may prevent the pressure plate from seating evenly. Inspect all associated fixings during clutch work and follow the Porsche workshop procedure for the correct tightening sequence and torque specification.

FAQs

• Is this supplied as a complete set?
  No. Sold EACH.
• Can the original bolts be reused?
  Follow the relevant Porsche workshop guidance. Replace bolts showing damaged heads, worn threads, corrosion or distortion.
• Is thread-locking compound required?
  Only use thread treatment when specified by the appropriate workshop procedure.
• What is important during installation?
  Use the correct tightening sequence and specified torque so the pressure plate seats evenly.