In this study, an assembly fixture called a "Yoke" that is used to assemble different engine types is analyzed. The new engine has some unique parts which cannot be accommodated on the yoke during the assembly. The fouling part is the outlet water pipe which fouls one of the supporting blocks during the assembly. Therefore, the aim of the present work is to effectively accommodate the fouling parts without much modifying the components by using ANSYS. In order to adapt the changing design of new engines inexpensively, this fixture has to be analyzed to identify regions where stress is concentrated. With the aid of the simulation programme ANSYS, this study successfully illustrates the integration of the finite element methods to solve complicated issues quickly. These calculations are exceedingly time-consuming to complete manually, thus simulation software like ANSYS is utilized to complete them more quickly and correctly. The results have been validated by using its mathematical model. The most secure and cost-effective modification for the yoke would be found after thorough investigation in order to successfully accommodate the fouling or clashing elements during installation.