An experimental investigation was conducted using vibratory device in order to obtain the effects of the vibration amplitude, pressure, temperature of water and depth of water on the cavitation erosion damage in wet diesel cylinder liners composed of 99 percent pure aluminum. Data indicated that as the depth of water decreases and the temperature increased, the weight loss rate increased, reached a maximum, and then decreased again. In addition, the weight loss rate increased linearly with increasing suppression pressure. Results suggest that the designer should design the engine with large gap between the cylinder liner and the jacket, the value of the cooling liquid temperature should be outside the peak erosion range and high cooling water pressure must be prevented to avoid serious erosion. Light optical photomicrographs of the damaged areas on the test specimen surfaces documents the nature of erosion damage corresponding to various test conditions.