Model train 1:87 driver helix gear cogwheel 13 teeth angled at 7 degrees (old PIKO)

Model train 1:87 driver helix gear cogwheel module 0.46 with13 teeth and angled at 7 degrees. This one is particularly created as a replacement for old PIKO locomotives. Fits many other brands like Con-Cor, Proto 1000/2000, Athearn although originally these models comes with straight 12 teeth driver gears with axle sleeve.