Article C5.4.11

Piston pin diameter

Technical Regulations

Article C5.4.11

FIA Source

Piston pin diameter

Chapter: C5

In Simple Terms

The piston pin is a small metal rod that connects the piston to the connecting rod inside an F1 engine. The regulation specifies that this pin must have a diameter between 18.0 and 19.0mm to ensure consistency and prevent unfair performance advantages across all teams.

  • Piston pin diameter must be between 18.0mm and 19.0mm
  • The piston pin connects the piston to the connecting rod
  • This specification ensures all teams use similar engine components
  • Compliance is checked during technical inspections
Official FIA Text

The piston pin diameter must lie between 18.0 and 19.0mm.

piston pindiameterengine componenttechnical regulationsf1 engine
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