Standard Ignition PS-405 Engine Oil Pressure Switch

Engine Oil Pressure Switch Overview

The Standard Ignition PS-405 engine oil pressure switch is built for vehicles that rely on an oil pressure gauge signal. It uses a female connector with a male stud terminal and is engineered for accurate oil pressure reading in the engine circuit.

Fits 1996-1998 Ford E-350 Econoline, 1996-1998 Ford E-350 Econoline Club Wagon, 1997 Ford F-250 HD, 1996-1997 Ford F-350, 1996 Ford F-250, and 1987 Volvo 760. This part number, PS-405, is a direct-fit service option for listed applications.

Key Features

• Engine oil pressure switch for gauge-equipped applications
• Female connector with male stud terminal design
• Single-terminal configuration
• Laser-etched calibration process for accurate circuit reading
• Polyimide film diaphragm construction for cycle durability
• Built to resist rupture and oil leakage under demanding conditions
• 100% tested for activation, leak checking, and specification compliance

Detailed Product Description

Standard Ignition PS-405 is designed for engine oil pressure monitoring in Ford and Volvo applications that use an oil pressure gauge. The switch is manufactured with high-temperature polyimide film diaphragms and calibrated thick film printed circuits to help deliver consistent pressure signal performance. Robust materials and automated testing support reliable operation in service environments where pressure pulsation and heat are common concerns. If you are replacing a worn oil pressure switch on a Ford E-350 Econoline, Ford F-350, Ford F-250, or Volvo 760, PS-405 provides a service-focused replacement built around the original electrical connection style.

This part cross-references Standard Ignition PS299 for the same application.

Common Issues This Part May Resolve

• Inaccurate or erratic oil pressure gauge readings
• Oil pressure warning light or gauge signal faults
• Switch leakage at the engine oil pressure port
• Intermittent electrical connection at the terminal
• Failure caused by heat, vibration, or repeated pressure cycling

Installation Notes and Tips

Verify the vehicle uses an oil pressure gauge before ordering. Confirm connector style, terminal type, and engine application against the existing switch before installation. Inspect the harness connector and sealing surface for wear, contamination, or damage, and compare the removed part to PS-405 before final fitment on Ford E-350 Econoline, Ford F-350, Ford F-250, or Volvo 760 applications.

Quality Assurance

Standard Ignition manufactures this switch with automated testing that checks activation, leak integrity, and specification compliance. The design uses high-grade materials and construction methods intended to meet the demands of professional engine service.