Tamiya 51739 TRF421 Upper Arm Spare Kit - Precision Fit  [51739]

Restore TRF421 Suspension with Official Tamiya Parts

The Tamiya 51739 Upper Arm Spare Parts are produced for the TRF421 chassis to give an accurate replacement when original arms need renewal. These parts help bring back intended suspension geometry and predictable handling after extended use.

Consistent Geometry for Better Handling

With careful manufacturing, these upper arms keep pivot points true and reduce unwanted slop. That consistency helps when you are tuning roll response or tracking down handling issues on different surfaces.

Quick to Fit During Servicing

Fitting the Tamiya 51739 arms is straightforward, allowing fast turnaround during setup sessions or routine servicing. They are a practical choice for racers and club drivers who need reliable swap-in parts.