Tamiya 51547 TB-04 One-Way Differential Ring Gear 40 Tooth  [51547]

Restore TB-04 gearing with a precision set

The Tamiya 51547 - RC TB-04 One-Way/Gear Differential Unit Ring Gear Set (40T) serves as a straightforward replacement for TB-04 owners wanting consistent drivetrain feel. The pack supplies the one-way gear and a 40 tooth ring designed for steady engagement in everyday running.

What this set improves

Installing the 51547 improves drivetrain responsiveness by ensuring cleaner tooth contact and more even torque distribution to the wheels. The 40T ring is built to withstand regular use across club sessions and local track days.

Installation reminders

Installation is simple for anyone familiar with basic RC tooling. After fitting the parts, double-check your gear mesh and bearing condition to avoid premature noise or wear problems.