Electric Brake Vacuum Pump Switch for Booster 28146, 2 year warranty

• PERFECT FIT - 28146 Vacuum Pump Switch fit for electric vacuum pump for brakes,Many customers also like to use it for AC Delco (Hella) vacuum pump
• WORKING VACUUM RANGE - off at 25-29" of vacuum based on the type of pump and on at 15-16" of vacuum to turn on the pump
• VACUUM PUMP SWITCH FUNCTION - It keeps the pump from constantly running and preserves pump life.Switch controls vacuum pump on/off bu typically uses a pilot relay between the switch contact and the vacuum pump motor

Please make sure that the switch is properly grounded, the switch will not work right unless it is grounded!