Buy 2005 Mercury Mariner Engine Oil Pressure Switch. Engine Oil Pressure Sensor/Switch - Repair or Sensor, Some, Turn, Year - OEM Mercury Part # 4G7Z9D290AB (4G7Z-9D290-AB)

Engine Oil Pressure Switch. Sender Assembly - Oil Pressure.
Engine Oil Pressure Switch.

Engine Oil Pressure Switch

Fits GT

Engine Oil Pressure Sensor/Switch - Repair or Replace
The oil pressure switch or oil pressure sensor in your 2005 Mercury Mariner 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.