Your original key will be marked as2D138. This key is suitable for the following models. Williams WF1 600H.
Vilgftyiet 2-Pack Spare Ignition Keys for Mountfield 1538, 827 & 1530H Lawn Mowers, Part Number 118210023/0, Black & Silver
2 x ATCO Ignition Keys Fits GT30H, GT38H, GT38HR & GT38M - 118210023/0 Genuine
2 x ATCO Ignition Keys Fits RIDERS 27M & 27H - 118210023/0 Genuine
Lawn Mower Ignition Switch With 2 Keys, 5-Pin Metal Replacement, 2 X 1.8 X 2 In, Compatible With Mtd, Features Anti-Loosening Nut
5-Pin Ignition Switch For Lawn Mower, 2 Keys & Anti-Loosening Nut, Mtd Replacement, Sturdy Metal 2 X 1.8 X 2 In
Tressify Lawn Mower Ignition Switch, 5-Pin 725-0267 Replacement, Heavy-Duty Metal Construction, Quick Start with 2 Keys, Secure Anti-Loosening Nut, 2 x 1.8 x 2 in