The gudgeon pin is one of the engine's most stressed components. Gudgeon pins are used in automotive engines to link the piston and connecting rod. This study looks at the detailed design and analysis of existing Gudgeon pins in order to detect the pin's stress concentration and then minimise it by making necessary changes to the pin's design and mounting. The current work involved constructing a Gudgeon pin and then using Finite Element Analysis (FEA) software to examine and minimise stresses on the pin. They chose silicon nitride as the best material after comparing titanium alloy, nickel alloy, and silicon nitride.