3mirrors Vacuum POWER BRAKE BOOSTER 4RUNNER Fit for Toyota 4Runner 1996, 1997, 1998, 1999, 2000

The booster assembly is generally used to be installed under or in front of the car dashboard. It is installed horizontally and gradually. It uses the vacuum of the engine’s intake manifold vacuum pump as power, through the driver’s foot control, so that the driver can use a lighter pedal force to obtain a higher brake hydraulic pressure, thereby reducing the driver’s working intensity and improving the system. The reliability of driving ensures the Safety of driving.

Installation tips：

When the booster is installed, the air in the oil pressure chamber is absolutely discharged to avoid affecting the boosting effect;

The air leakage at the copper valve is mostly due to the presence of sand or rust on the valve seal ring. It should be removed and cleaned, instead of using mineral oil (such as diesel, gasoline, etc.);

During installation, the vent of the screw should be upward; the angle between the push rod and the central axis should be controlled within ±5° during installation;