Mini 4WD Spare 6mm Damper Ball M4WD-04/LB for mass-damper assemblies by 3Racing  [M4WD-04/LB]

6mm mass-damper ball M4WD-04/LB in light-blue for Mini 4WD

This component is a 6mm diameter damper ball intended as the moving mass inside Mini 4WD damper cartridges. It is suitable as a replacement part for hobbyists maintaining mass-damper assemblies on small 4WD chassis.

The light-blue finish helps when separating parts during assembly and when building sets of different damping weights. The ball is a simple mechanical element and should be treated as a service item subject to inspection for wear.

Fitment guidance: the ball is compatible with commonly used Mini 4WD mass-damper housings on MA, MS, AR and Super-II style 4WD chassis that require a 6mm damping element. Verify physical clearance with your specific damper housing and retainers before locking the assembly.

Maintenance tips: keep spare balls free of dust and grease, and store them in a sealed container away from solvents and UV exposure. Replace when the surface wear alters rolling behavior or colour loss suggests material fatigue.