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OEM 3929885 4022816 Excavator Engine Parts 4BT M11 Camshaft Assy | Tonkee®

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3929885 4022816 Excavator, Engine Parts 4BT M11 Camshaft Assy | Tonkee®

The Camshaft Assembly is a precision-engineered component composed of high-quality materials, typically forged or cast steel.

It has a cylindrical shape with lobes or cams that are strategically positioned along its length. These lobes are designed with utmost precision to dictate the opening and closing of the intake and exhaust valves, synchronizing them with the piston's movement. Function: The primary function of the Camshaft Assembly is to convert the rotary motion generated by the engine's crankshaft into linear motion, which in turn controls the valve operation. As the camshaft rotates, the lobes push against the valve lifters or tappets, causing the valves to open and close at precisely timed intervals. This synchronization is crucial for efficient engine performance. 4BT and M11 Engines: The 4BT and M11 engines are renowned for their robustness and reliability in the field of heavy machinery. The 4BT, manufactured by Cummins, is a four-cylinder, 3.9-liter turbocharged diesel engine, while the M11 is a larger six-cylinder, 10.8-liter diesel engine. These engines are commonly used in excavators, bulldozers, and other heavy-duty equipment, where durability and high torque are essential.

Specifications: The specific part numbers 3929885 and 4022816 correspond to Camshaft Assemblies designed for the 4BT and M11 engines, respectively.

These camshafts are engineered to meet or exceed the original equipment manufacturer (OEM) specifications, ensuring compatibility and performance. Some key specifications include: Material: The camshaft is typically made from high-strength alloy steel to withstand the stresses and loads associated with heavy machinery operations. Lobe Profile: The camshaft lobes are precision-ground to provide the optimal lift and duration for valve operation, ensuring efficient combustion and power delivery. Hardened Surface: The camshaft's surface is hardened to minimize wear and extend its service life. Bearing Journals: The camshaft has bearing journals that ensure smooth and precise rotation within the engine. Sprocket Mounting: The camshaft includes sprocket mounting points to connect it to the timing system, ensuring precise timing of valve operation. Oil Passages: Camshafts are designed with oil passages to provide lubrication to the cam lobes and bearings, reducing friction and wear.

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Product Detail

The Camshaft Assembly is a precision-engineered component composed of high-quality materials, typically forged or cast steel.

Specifications: The specific part numbers 3929885 and 4022816 correspond to Camshaft Assemblies designed for the 4BT and M11 engines, respectively.

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