Genuine Porsche 999-178-018-00 Wrist Pin Circlip

The Genuine Porsche 999-178-018-00 Wrist Pin Circlip is an OEM-quality retaining clip designed to secure the wrist pin (piston pin) within the piston assembly. This precision-engineered circlip prevents the wrist pin from moving laterally and making contact with the cylinder wall during engine operation.

Key Features:

• Genuine Porsche OEM part for guaranteed fitment and quality
• Precision-manufactured from high-strength spring steel
• Heat-treated for optimal tension and durability
• Critical engine component for piston assembly integrity
• Designed to withstand high RPM and temperature extremes

This circlip is a small but essential component during engine rebuilds or piston replacement. Always replace wrist pin circlips with new OEM parts during engine assembly to ensure proper retention and prevent catastrophic engine damage. Sold individually.