This V-Groove Drive Pulley works both as an OEM replacement and as a general purpose pulley for power transmission such as compressors, industrial fans, lawn mowers, snowblowers, and electric motors. This pulley comes with 2 set screw holes. This part is Painted Black to prevent rusting. Additional Features: Made of Steel Works with 4L/A|5L/B belts Heavy duty split steel Direct OEM Replacement for: Billy Goat: 351250