Items may be disassembled prior to shipping in order to secure you the best savings possible. As with any used parts, we recommend replacement of any seals and/or fluids included with the item, as they may be original to the component(s) and their integrity cannot be guaranteed through storage. Always use new bearings when assembling motor components - properly gauged bearings are critical to the proper operation of a motor! We also recommend a thorough inspection and cleaning before installation, especially with internal or other moving components! Electrical components are untested unless explicitly stated.