maXpeedingrods 28146 12V Electric Vacuum Pump Kit, Brake Booster Vacuum Pump, 18" to 22" Electrical Vacuum Pump for Brake, w/Installation Kit

Greatly Reducing Noise: The 12V Electric Vacuum Pump is not always running, it will do intermittment work according to the degree of vacuum to reduce noise. At -0.004MPA to -0.006MPA, the switch is turned on and the vacuum pump is running.The pump is designed to kick on when the vacuum falls below -0.04 MPA and kicks off around -0.06 MPA. Provide Vacuum to Power Brake Booster: Self adjusting inline vacuum switch, cycles the pump on & off.Operates when vacuum drops below 18 inches and turns off when over 22 inches.Ideal for cars when the proper amount of vacuum is not being generated. And recommended for cars with 15"" of vacuum or less at idle. High Efficiency Electric Brake Vacuum Boster: Uses a highly effiecient electric pump, relay switch and stributor with vacuum switch which should be mounted close together for effectiveness. Easy to Install: Hooks directly to your booster. All wires are pre-cut and terminals installed for easier installation. All necessary mounting hardware included. Why Choose Us: maXpeedingrods all items are all tested for reliability, durability and performance. Any question, please let us know, we will help you solve