Connected to the clutch pedal, the Clutch Master Cylinder (CMC) is an essential component of the clutch system. When brake or clutch pedals are depressed, pistons move through the CMC, so it is vital that this cylinder is smooth and of pristine condition. All AISIN cylinder bodies are anodized and Kanizen-plated to produce a stronger surface. The result, a smooth operation of the piston and quick response to clutch and brake operations.