Hydrogen embrittlement (HE) leads to significant materials degradation, given by dissolved hydrogen that detrimentally affects the mechanical properties of metals, including ductility, toughness, and strength. The present study addresses HE in internal combustion engine (ICE) (General Motors) parts sourced from Dumarey. The motive is to reveal the susceptibility to HE of IC engine parts in hydrogen-rich environments. The research methodology integrated a comprehensive literature review of hydrogen-metal interactions with targeted experimental evaluations. Materials were subjected to electrochemical hydrogen charging, followed by slow strain rate tensile (SSRT) testing at a strain rate of 10−5 s−1 to quantify variation in mechanical performance. Post-mortem analyses involved scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) followed by detailed fractographic analysis.