Piston pin for Komatsu GD511A

The piston pin, part number 6207-31-2410, serves as the mechanical link between the piston and the connecting rod in the engine. By forming a pivot point, it facilitates the transfer of combustion force from the piston to the crankshaft, enabling the reciprocating motion required for engine operation. This component is designed to maintain the structural connection between these moving parts during the combustion cycle.

This part is intended for use in the Komatsu S6D95L-1 engine, which powers the GD511A and GD511A-1 motor graders. It is manufactured to specific tolerances to ensure a precise fit within the piston boss and the connecting rod small end, which is necessary to manage the dynamic loads experienced during engine operation.

In internal combustion engines, the piston pin acts as a hinge that allows the connecting rod to oscillate as the piston moves up and down within the cylinder. Proper fitment of this pin is necessary to minimize clearance and prevent excessive movement or noise within the cylinder assembly. Regular inspection of the pin and its associated bushings is standard practice during engine overhauls to ensure the continued alignment of the reciprocating components.