Solenoid valve for combustion engine oil pump to regulate the quantity of oil in the pump: -with a cable of length of 550 mm or more but not more than 700 mm incorporating an electrical connector, -with an operating pressure of not more than 5.5 bar, -with an operating voltage of 9 VDC or more but not more than 16 VDC, -with a valve's base width of 22 mm or more but not more than 27 mm, -with a valve's length of 55 mm or more but not more than 110 mm, for use in the manufacture of motor vehicle engines