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An extensive experimental and numerical investigation was completed to improve the vibration and acoustic performance of a piston pump. A parametric study was carried out using an FEM model of the pump. The BEM model of the corresponding model was built to predict the noise levels and document the improvements during the dynamic optimization process of the system. Experimental modal and acoustic tests were done in order to verify the numerical results. Good correlation was observed between experimental and numerical results in both dynamic and acoustic parameters. Based on the modeling results, which were validated experimentally, design improvements were made.