Pressure washer pump AC motors are for use in hot and cold water high-pressure washer applications. They are corrosion resistant with a moisture-resistant shaft system having a 303 stainless steel shaft and lubricated, spring-loaded contact seals in each endshield. These motors have a V-ring seal on the shaft end to deflect water. The double-sealed, oversized bearings are lubricated with high-temperature, moisture-resistant lubricant and the bearing cavities are packed further to retard the entrance of moisture.