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The oil pressure switch monitors engine oil pressure and triggers the warning light on the dashboard when pressure drops below a safe level. A faulty switch can give false warnings or, worse, fail to warn of genuinely low oil pressure. Replacement is cheap and quick, providing peace of mind that the warning system is reliable.
The oil pressure switch is a simple on/off device that closes a circuit when oil pressure drops below its rated threshold.
Before replacing the switch, verify the oil level and condition. Low oil level or degraded oil can cause genuine low pressure readings.


Commonly searched OE numbers fitting Pressure Switch from the TecDoc catalogue.