Mini 4WD Precision Shaft Stopper M4WD-38/BL Black Aluminium Collar by 3Racing  [M4WD-38/BL]

Precision aluminium collar for Mini 4WD shafts

The M4WD-38/BL shaft stopper is a machined aluminium collar supplied to replace common plastic shaft stoppers on Tamiya Mini 4WD kits. Its black anodised finish and machined profile prioritise a repeatable seating surface and improved resistance to wear without modifying drivetrain geometry.

Collectors and builders who perform regular tear-downs will find the metal collar resists deformation better than plastic alternatives. The component is provided as a single collar-style stopper and generally mounts in the same way as the original plastic part.

In practice the stopper limits axial movement of axle or gear shafts and delivers a stable bearing or bushing contact face on MA, MS, AR and related chassis. It is suitable for restoration projects, routine part replacement, or any application where a more durable stop surface is required.

Install using standard hobby tools and take care not to over-torque small fixings to avoid distorting mating components. The stopper does not change gearing, motor characteristics, or core drivetrain layout; retain usual setup practices for the chassis.