1/32 Mini 4WD Mass-Damper 6mm Replacement Ball M4WD-04/RE by 3Racing  [M4WD-04/RE]

M4WD-04/RE 6mm damper ball for Mini 4WD mass-dampers

This red 6mm steel ball serves as a spare for mass-damper setups used in 1/32 Mini 4WD models. It is supplied as a maintenance item for housings that accept a plain 6mm ball, not as a calibrated upgrade.

Active builders should check retainers and mating surfaces to prevent excess play or binding after replacement. The red finish is decorative; focus on dimensional accuracy and surface quality when judging suitability for long-term running. Compatibility varies by damper style, so confirm bore size before fitting.

For practical fit checks: ensure the ball rotates freely where required and that retainers keep it stable under motion. If the assembly uses alternative damping inserts, verify clearance and retention method first.