Kyosho Mr-03/Mr-04 Ball Differential Spur Gear KYOMZW705-1

This Kyosho spur gear is designed for the ball differential assembly used in the Mini-Z MR-03 and MR-04 platforms. It integrates directly into the ball differential unit to transfer power smoothly from the motor pinion through the drivetrain. A factory replacement part, it helps restore proper gear mesh and differential function when the original gear shows wear. Features: Fits MR-03 and MR-04 ball differential assemblies Factory Kyosho replacement part Designed for precise gear mesh in Mini-Z drivetrain 7/7/26 cs