Honda CB400X Oil Pressure Sensor (35500-MJ4-024)

The Honda Oil Pressure Switch 35500-MJ4-024 is a genuine OEM component designed to monitor engine oil pressure and to signal the rider (via the oil-pressure warning lamp or ECU) in case the pressure drops below the required threshold. It is manufactured to Honda’s strict standards and typically uses a robust body that threads into the crankcase or oil circuit, with internal electronic or mechanical contacts calibrated to trigger at the specified pressure.
Installing this switch ensures accurate oil pressure monitoring, helping to protect the engine by alerting you if lubrication becomes compromised. The correct fitment of the switch is crucial: it must match thread size, sealing washer or O-ring specification, and be torqued to the manufacturer-specified value to prevent leaks or false readings.
Because oil pressure is critical to engine longevity and performance, using the correct OEM switch 35500-MJ4-024 ensures reliability, compatibility and safety compared to generic substitutes.

Key Features:

Genuine Honda part number: 35500-MJ4-024

Role: Oil pressure sensing/switching component for engine lubrication system

Builds to OEM dimensions and specifications for fit, seal and calibration

Ensures correct alerting when oil pressure drops below safe threshold

Direct replacement for original switch — helps maintain engine protection and warning system integrity

Suitable for models listed by Honda that use this part number