Based on this product's specifications, here are some alternatives and similar models
Angle Grinder Gear Housing TRYTON YTMS18PR for models TMS12518 TMS12519
Summary description:
Replacement gear housing for TRYTON angle grinders, model YTMS18PR compatible with TMS12518 and TMS12519. Designed to house the gearbox and support the spindle assembly; it provides proper alignment and protection for internal gears and bearings. Intended for repair or maintenance of angle grinders to restore mechanical integrity and safe operation.