When it comes to using silicone rubber for insulation and leakage applications in high-temperature environments, its chemical resistance and thermal stability are a major benefit, but unfortunately, its low thermal conductivity and wear resistance don't make it practical for engine applications. It's also susceptible to damage from oil, so the goal of this study was to find a way to strengthen silicone rubber for such uses. Silicone rubber composites were made by adding aluminum oxide nanoparticles (Al₂O₃) to various loadings (0,1,3,5,7) part percent hundred rubber). The samples that were prepared were assessed on thermal conductivity, wear resistance amid dry and oil-greased circumstances, conduct of oil swelling, and compressibility. These findings revealed that the incorporation of Al₂O₃ nanoparticles enhanced the thermal conductivity and wear resistance of silicone rubber to a large degree and oil swelling as well as compressibility was decreased. The composition with 5 pphr of the Al₂O₃ was the most balanced in terms of thermal conductivity and wear resistance and resistance to oil. These results will show that Al₂O₃ fortified silicone rubber reinforced materials have good prospects to be used in high temperature sealing application like automotive engine gaskets.