Shop 1987 Buick Century Engine Oil Pressure Switch. 9-3. 9-5; 2.3L. Engine Oil Pressure Sensor/Switch Sensor, Some, Turn, Unit - OEM Buick Part # 55559824 (30568048, 9176660)

Engine Oil Pressure Switch. Oil Pressure Sending Unit. Oil Pressure Sensor.
Engine Oil Pressure Switch.

Engine Oil Pressure Switch

Fits 9-3, 9-5

9-3. 9-5; 2.3L.
Engine Oil Pressure Sensor/Switch - Repair or Replace
The oil pressure switch or oil pressure sensor in your communicates with your engine’s computer to turn on the oil light if the oil pressure is low. In some cases, they can fail as a result of an oil leak and must be replaced to prevent catastrophic engine damage.