Mugen Seiki MTX4 2nd Gear Housing by 3Racing MTX3-017  [MTX3-017]

Second gear housing for MTX4 chassis

This 2nd gear housing is an RC-scale replacement part intended for the Mugen Seiki MTX4 chassis, supplied under 3Racing part number MTX3-017. It serves as the enclosure for the second-stage spur and related bearings inside the MTX4 gearbox, and is intended for routine maintenance, part replacement, or gearbox rebuilds on that specific model.

Compatibility is specific to the MTX4 gearbox layout so check your chassis before ordering. When replacing the housing, keep gear mesh and bearing preload settings consistent with the original assembly to avoid premature wear. Inspect bearings and spur gear teeth during the swap and replace any worn components at the same time.

Choose this housing when you need a direct replacement for MTX4 gearbox maintenance or to restore proper second-stage gear alignment after wear or damage.