Based on this product's specifications, here are some alternatives and similar models
Angle Grinder Gear Housing for TDS125A models (fits variations 7, 8, 9, 12, 17) by No name
Summary description:
Replacement gear housing designed for angle grinder model TDS125A and compatible with the listed variations (7, 8, 9, 12, 17). This spare part provides the structural enclosure for the gearbox and mounting points for internal components. Use it to repair or restore the grinder's transmission assembly and maintain correct alignment and protection of gears.