Hella 003259391 Engine Oil Pressure Switch

Hella Engine Oil Pressure Switch

The Hella 003259391 engine oil pressure switch is a direct-fit OE-style replacement for Volkswagen Type 1 applications that use a normally closed oil pressure circuit. Built with a single connector, 12V rating, and M10x1 thread, it is specified for precise oil pressure switching in classic VW engine systems.

Genuine OE from HELLA supports the kind of fit and function buyers expect when replacing a Volkswagen Beetle, VW Type 1, or other air-cooled VW oil pressure switch. The 003259391 part number is also a useful reference when cross-shopping OE-style replacements for the same application.

Key Features

• Brand: Hella
• Brand line: Genuine OE from HELLA
• Part number: 003259391
• Engine oil pressure switch for VW TYPE 1 applications
• Normally closed contact design
• 12V rated voltage
• Single connector configuration
• M10x1 thread size
• Switch pressure range: 0.15 to 0.45 bar
• 24 mm spanner size
• Black housing

Detailed Description

This Hella oil pressure switch monitors engine oil pressure and opens or closes the circuit at the specified pressure range to support the warning light function in compatible Volkswagen air-cooled engines. With a 0.15 to 0.45 bar switching range, 0.25 A current strength, and 15% tolerance, it is built around the electrical and mechanical specifications commonly used in VW Type 1 oil pressure systems. The 003259391 part number is a practical match point for buyers searching Volkswagen Beetle oil pressure switch, VW Type 1 engine oil pressure switch, or Hella 003259391 replacement.

Genuine OE from HELLA indicates an OE-focused product line for replacement parts that follow original equipment specifications. This makes the switch a strong reference for restorations and maintenance work where correct thread size, connector count, and pressure calibration matter. This part cross-references Standard Ignition PS-121 for the same application.

Common Problems It Can Address

• Oil warning light staying on after startup
• Oil warning light not illuminating with low pressure
• Intermittent oil pressure warning signal
• Incorrect switch thread or connector mismatch
• Replacement need during VW Type 1 engine service

Installation Notes and Tips

• Verify the engine uses an M10x1 threaded oil pressure switch before installation.
• Use the specified tightening torque of 20 Nm.
• Confirm the single electrical connector matches the vehicle harness.
• Check the oil warning circuit after installation to confirm proper switch operation.
• For Volkswagen Beetle and VW Type 1 applications, compare the original switch pressure range before replacement.

Quality Assurance

Hella Genuine OE from HELLA parts are built to OE-style specifications for fit and function in the intended application. The 003259391 oil pressure switch is specified with defined pressure, voltage, thread, and connector details to support accurate replacement selection.