This Flat Idler 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. It will not require any bore adapter or bushing for use. 391208C features a light duty radial sealed double-row bearing, and will have no need for a bushing. This part is Painted Black to prevent rusting. Additional Features: Made of Steel Flanges angled outward to help increase belt life Direct OEM Replacement for: Briggs And Stratton: 7012124 Simplicity: 7012124 Snapper: 7012124