Duralast Oil Pressure Switch PS401

The Duralast® line of vehicle electronics are designed for OE form, fit and function for both import and domestic vehicles. The oil pressure switch (or sensor, depending on vehicle) reports engine oil system pressures to the on-board computer, and when oil pressure is low, will illuminate the check engine light. When not replaced, vehicle operator may not be notified of engine oil pressures falling below critical limits. In more advanced vehicles, an un-replaced faulty oil pressure switch or sensor may not notify on-board computers of critical system pressure, thus not allowing the computers to place the vehicle into limp mode to protect the engine.