143-6617: Engine Brake Master Piston

Description: A Master Piston for a compression brake is a key component in the operation of an engine braking system. The compression brake, also known as a Jake brake or engine brake, is a device used in diesel engines to assist in slowing down the vehicle by utilizing the engine's compression to provide braking force. The Master Piston is responsible for controlling the operation of the compression brake. It is typically a hydraulic or pneumatic piston that is connected to the engine's valve train. When activated, the master piston applies pressure to the engine's intake or exhaust valves, effectively altering their timing or keeping them partially open during the compression stroke. Attributes: • Manufactured to a precise specification and are built for durability, reliability, and productivity. • The master piston is actuated by a solenoid or an electronic control module (ECM). Applications: A Master Piston is used in the compression brake to control the braking action in a diesel engine and is mainly used in Cat D250B, D250E, D25C, D25D, D300D, D300E, D30C, D30D, D360C, D350D, and D350E Articulated Truck, C10, C12, 3116, and 3306 Engine Truck.