1141051 - Genuine Replacement 18" Lawnmower Blade for a Selection of Hyundai & P1 Petrol Lawnmowers. This is an OEM replacement Lawnmower Blade for a Hyundai Hym460Sp Hym460Spe & P1 P4600Sp 18" / 46Cm lawnmower. Part Number - 1141051. This part will fit the following machines: HYM460SPE, HYM460SP, P4600SP. Before purchasing, we recommend that you check the exploded view diagram with the diagram reference provided on this listing to be sure you have selected the part you need. At a Glance: 1141051 - for a selection of Hyundai machines. OEM Part. Diagram Reference(s) Per Model - HYM460SPE-C11; HYM460SP-B11; P4600SP-B7.