Flat Idler pulley replaces Scag 483208. Fits 36", 48", and 52" & 61" gear drive commercial walk behinds; 48", 52" & 61" Tiger Cub drive components, Serial No. 7630000 and higher. Can also be used for Scag 481048, 48201 and Encore 363169. Besure to refer to your manual to match by OEM part #.