The file 'Lego Side Gear 12 Tooth 3D Printer Model' is (stl) file type, size is 30.9KB.
My son had a side gear and needed it to be replicated since I could not find one I created this one as close to the original as possible fits and functions well.
Lego_side_gear_12_tooth_v1.stl | 125.1KB |