Despite the complete lack of any description on the website, this Fan Sheave component was the replacement component I needed for a Mark V 500 repair job. The part did not arrive in the condition pictured on the website; shiny and new. Rather, it appeared to be either old inventory or possibly a returned/salvaged component from another machine. The part was dusty, patinaed with age, and there was sawdust, dirt, and debris in most of the crevasses. However, component still works and performs.