Kyosho UM322C 22T Steel Pinion for 1/48 Scale  [KY-UM322C]

22T steel pinion — compact scale fit

This Kyosho UM322C steel pinion gear serves as a direct spare for 1/48 scale RC models that use a 22-tooth motor pinion. It is provided as a single replacement component to restore drivetrain function or to allow small adjustments to gear mesh and ratio.

Focus in the design is on preserving the 22T tooth geometry and spacing common to small motor pinions, making it appropriate for matching with existing gear sets or testing mesh and gearing changes on 1/48 platforms. Confirm the tooth count and mesh clearance with your current spur gear before installation.

Installation advice: inspect your motor shaft and determine whether the pinion is secured by a set screw or is press-fit, check axial location and backlash, and consider shimming the motor mount if needed to achieve correct mesh. Always measure shaft diameter and set screw style rather than guessing fitment.

Choose this pinion to replace a worn 22T steel unit or to tweak final drive ratios on a 1/48 scale RC car; verify fit and mesh before running.