Inferno MP Series Differential Case for NEO 3.0 & 4.0 - Kyosho IF103B  [KY-IF103B]

Service housing for Inferno MP differentials

The Kyosho IF103B differential case is an RC-scale replacement housing intended for the Inferno MP Series NEO 3.0 & 4.0. It acts as the main shell that secures internal differential gears and bearings, used when servicing worn components or preparing the drivetrain for setup changes.

This item is supplied as a direct spare rather than an aftermarket hop-up; the description highlights compatibility and practical workshop use. Expect the case to match factory mounting points and internal geometry of the named Inferno MP Series models so standard differential parts refit without modification.

Installation notes: remove the differential assembly from the gearbox or rear pod, record gear orientations and shim positions, move bearings and internal gearsets into the replacement case, and confirm smooth bearing rotation and correct gear mesh before reinstalling. The case is intended for routine teardown, fault diagnosis, and when changing oil weights or diff setups.

Tuning role: swapping in the IF103B is part of drivetrain rebuilds that enable repeatable diff shimming and fluid changes, which influence traction and handling across different surfaces. Use this case to restore chassis geometry after wear or when managing multiple setup configurations for quick swaps.