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

2nd stage housing for MTX4

This 2nd gear housing is a service replacement made for the Mugen Seiki MTX4 chassis and carries the model number MTX3-017. It houses the second-stage spur and bearing set inside the MTX4 transmission and is intended for maintenance, replacement, or gearbox overhaul on that platform.

Fitment is specific to the MTX4 gearbox layout so confirm your chassis variant before purchase. When swapping the housing, mirror the original gear mesh and bearing preload specifications to prevent premature wear. Inspect the spur gear profile and bearing surfaces and replace any worn components during the repair.

Use this housing to recover correct second-stage alignment and running clearances on MTX4 gearboxes after wear or damage.