Power washers are built to last, but like everything mechanical things can happen and parts can need replacement. If you have a bit of DIY ability you may be able to do the repairs by yourself. If you need to replace power washer parts try to stay with genuine parts, parts made by the manufacturer of the power washer. You will be able to find some replacement parts at your local home store, or online. Always check the warranty on your power washer before making any repairs.