DZ9112340139  Engine Brake camshaft (left) SHACMAN Truck Parts

   Part number DZ9112340139 left-side engine brake camshaft is a precision-engineered core component exclusively designed for SHACMAN truck engine braking systems, playing a pivotal role in converting hydraulic pressure into mechanical force to activate the engine brake mechanism. Its primary function is to regulate the opening and closing timing of engine valves during braking operations, enhancing the truck’s retarding force to reduce wear on the service brake system—especially critical for long downhill drives and heavy-duty cargo transportation scenarios.Crafted from high-strength alloy steel with a quenching and tempering heat treatment process, the camshaft delivers exceptional hardness, wear resistance, and fatigue strength, capable of withstanding high torque and continuous mechanical stress under extreme working conditions. It features a precisely machined cam profile that ensures smooth operation and consistent braking performance, while its anti-corrosion surface coating effectively resists rust and oil contamination.Manufactured to strict SHACMAN OEM standards, this left engine brake camshaft guarantees seamless fitment with compatible truck models, enabling direct replacement without modifications. As an essential safety component, it enhances the truck’s braking stability, reduces maintenance costs, and maximizes operational safety for long-haul fleets.

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3.High radial and axial load carrying capacity

4.Low friction and long service life

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