Hella 003259171 Engine Oil Pressure Switch

The Hella 003259171 Engine Oil Pressure Switch is a precision-engineered component designed to monitor oil pressure in the engine's lubrication system. Installed in the engine's oil circuit, this switch continuously monitors oil pressure and controls the dashboard warning light to alert drivers of low oil pressure conditions that could lead to engine damage.

Key Specifications:

• Normally closed contact design for reliable operation
• Operating pressure range: 0.35 to 0.55 bar
• 12V electrical system with single-pin connector
• M14 x 1.5 thread size for secure installation
• 24mm spanner size for proper installation
• 0.25A current rating
• Black color finish

This switch is manufactured to OEM standards, ensuring accurate oil pressure readings and dependable performance. When oil pressure drops below the specified threshold, the normally closed contact opens, illuminating the oil pressure warning light on the dashboard. Cross-references to OEM part numbers including Porsche 986.606.203.02, 986.606.203.03, Opel 12 52 506, and 89 54 566.

Diagnostic Information: A failing oil pressure switch may trigger diagnostic trouble codes P0520, P0521, or P0522, and symptoms can include illuminated warning lights, fluctuating oil pressure readings, or visible oil leaks around the switch area.