A clutch kit comprises the components necessary to disengage and re-engage the engine's power to the transmission in manual transmission vehicles. Key elements include the pressure plate, clutch disc, throw-out bearing, and alignment tool, working in concert to facilitate smooth gear changes. The pressure plate utilizes spring force to clamp the clutch disc against the flywheel, transmitting engine torque. Clutch discs employ friction material bonded to a core, absorbing and transferring rotational force while allowing controlled slippage during engagement. Kits are specified by vehicle make, model, and transmission type, requiring precise component matching for optimal performance and longevity.