Gudgeon Pin/Piston Pin Gudgeon Pinsand mostly in American nomenclature known as wrist pins, are an integral part of all types of internal combustion engines, Otto or diesel types, 2 strokes and 4 types. Gudgeon pin is a component to fasten the piston and the connecting rod severally and securely, but at the same time permitting enough play for the free angular movement of the connecting rod according to the requirements of kinematics of the engine assembly.

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