Tamiya TRF421X 3404178 Rear Body Mount Stay for  [3404178]

Rear body mount stay for TRF421X

This is an RC-scale replacement rear body mount stay designed for the TRF421X chassis. It serves as the mounting point that holds the rear portion of a touring car body to the chassis and helps maintain consistent alignment during setup and track use.

Constructed as a molded plastic component, the part focuses on dimensional accuracy and repeatable fit with factory mounting points. When worn or damaged, replacing the stay restores secure body positioning and reduces unwanted movement that can affect aerodynamic behavior and handling balance.

Installation is a direct swap with the original rear body mount stay on TRF421X equipped cars, using the existing chassis mounting points and body posts. After fitting, verify clearance to suspension and drivetrain components and confirm the body seats evenly before track runs.

Use this stay when original parts show wear or when precise body alignment is needed for setup changes on the TRF421X chassis.