BELT 1/2" Fits ALL Sunbeam 4-BLADE TWIN DISCHARGE LawnMowers PN # 81752 Fits ALL Sunbeam Twinblade Twin Discharge Mowers.(Grass Drops Frt & Back) Model #'s RE18C, RE181, RE182, RE183, RE184, RE185, RE18ST, RE18DS. Most #'s can be followed by a -B, -C, -1, -2, OR Stencil Models Belt will be Marked 47-81752 ******ALL 47-81752-1 BELTS are Subbed 47-81752. Remove Spring filler on Motor Drive.****** ALL Sunbeam Belts are COG DESIGN. 2 Belts Used on Each LawnMower ******RELATED ITEMS: Pulley Assy # Sun7510 4 Pack-Blade KIT # SunACC1209 Blade Single # Sun7482******