Mini 4WD Service Spacer M6.4 x 1.7 - M4WD-03/BK by 3Racing  [M4WD-03/BK]

Black M6.4 x 1.7 spacer M4WD-03/BK for 1/32 Mini 4WD drivetrains

The M4WD-03/BK spacer is a replacement part designed for Mini 4WD builds using M6.4 x 1.7 bearing spacing. It installs between bearings or between a bearing and an adjacent part to preserve correct axial placement and alignment within standard Mini 4WD drivetrain assemblies.

Experienced builders know that a dedicated spacer helps maintain uniform bearing seating and can reduce unwanted sideplay from uneven stacks. The black coating keeps the look consistent with darker rollers and chassis components and makes this a handy part for routine servicing or renovation projects.

Installation note: only use this spacer where M6.4 x 1.7 bearing geometry applies to the axle or roller assembly. This is a part-level replacement for upkeep, not a performance upgrade; follow the bearing and axle recommendations for the host Mini 4WD.