car ZIL-131

The gearbox is mechanical, three-speed, has five gears for moving forward and one for moving backward

The vehicle's driveline consists of four driveshafts: the main one between the gearbox and the transfer case, the middle axle drive between the transfer case and the middle axle reduction gear, the rear axle drive between the reduction gears of the middle and rear axles, and the front axle drive between the transfer case and the front axle reduction gear.

The pressure regulator is installed on the compressor cylinder block. To increase the reliability of the pressure regulator, it is equipped with two filters: