The clutch kit is located in the flywheel housing between the engine and the gearbox, and the clutch is fixed on the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the gearbox. During the driving of the car, the driver can press or release the clutch pedal as needed, so that the engine and the gearbox are temporarily separated and gradually engaged to cut off or transmit the power input from the engine to the transmission.