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A computer-based finite element model for prediction and evaluation of the dynamic performance of a diesel engine chassis mounting bracket was studied. The influence of the C-section edges, ribs, and bolt holes of the bracket were analyzed. The addition of C-section edges generally increased the natural frequency of the bracket, while the addition of bolt holes had an opposite effect. The influence of the ribs was position dependent. Inclusion of the upper and the lower ribs generally increased and decreased the natural frequency of the bracket, respectively. The effects of changing the boundary conditions for modal analysis were investigated. The most prominent effect occurred when the bracket was fixed in the x, y, and z directions at both ends vs. having fewer constraints at either end. The dynamic displacement of the supporting face of the bracket was determined by harmonic response analysis. The relationships between the dynamic displacement and the applied loads were found to be linear.