Everything to restore 100k normal service with all the extra power you need. We maintain full inventory for fast shipping priority USPS arrives most US destinations in 2 days or less. Top shelf quality parts arrive ready to install. Warranty for a period of 1 year. Watch our free video to see how easy it is and how to minimize downtime. Notice the aluminum back plate with the visible rear bearing and an external cooling fan behind the pulley. This identifies this unit as a CS series.