<p>Pressure overshoot in the cylinder chamber is one of the major contributors to pressure ripple in swashplate axial piston pumps. This paper proposes a method that reduces pressure overshoot by redirecting excess oil from the cylinder chamber to an auxiliary chamber during the pre-compression phase. The discharged oil is further utilized to mitigate cavitation during the suction phase. To investigate this concept, a pump exhibiting significant pressure overshoot and cavitation was selected and a dedicated auxiliary unit was designed. Simulation results showed that the proposed approach can effectively reduce pressure overshoot while also suppressing flow ripple and cavitation. A test rig was constructed to measure pressure ripple under different operating points. The results showed a maximum reduction in pressure ripple of 2 bar, indicating the effectiveness of the proposed method. This study provides an alternative approach for suppressing pressure ripple and cavitation in axial piston pumps.</p>