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Cummins

Connecting rod for Cummins

P/N 3971394

This connecting rod, part number 3971394, serves as the mechanical link between the piston and the crankshaft within the engine assembly.

Specifications

Part number
3971394
Brand
Cummins

The connecting rod acts as the primary mechanical link between the piston and the crankshaft in an internal combustion engine. It is responsible for transmitting the force generated by the combustion process within the cylinder to the crankshaft, effectively converting the linear motion of the piston into the rotational motion required to drive the machine. The component features a small end designed to interface with the piston pin and a large end that connects to the crankshaft journal, both of which are configured to accommodate bearings for reduced friction during operation.

This specific part is engineered for use in Cummins engines. The design ensures precise alignment and balance, which are necessary for the internal reciprocating assembly to function correctly. Proper installation of this component is required to maintain the mechanical integrity of the engine block and rotating group.

In any internal combustion engine, the connecting rod must withstand significant compressive and tensile forces throughout every power stroke. By maintaining the correct geometry and structural connection between the piston and the crankshaft, the rod ensures that the energy produced by the engine is transferred efficiently to the drivetrain.