TRF421X Alum. Upper Arm Mount A Blue, model part

The TRF421X Alum. Upper Arm Mount A Blue is a dedicated model part for chassis maintenance, replacement work and focused setup changes. Its blue aluminium construction gives the component a defined place within a tuned build, where accurate fit at the upper arm mounting area matters during servicing. As a TRF421X-specific part, this mount is suited to repairs that call for the correct designation rather than a generic substitute. The aluminium format makes it a practical choice for workshop use, where repeated assembly and disassembly demand a cleanly machined component. The Upper Arm Mount A position is central to suspension-related rebuild work, so using the matching part helps keep a project consistent with its intended layout. The blue finish also aligns visually with performance-oriented chassis hardware often used in competition-focused model platforms. Whether the task is replacing a worn mount, refreshing a race chassis or keeping spare hardware ready at the bench, this part fits naturally into a model maintenance routine. It works well for organised parts storage, planned rebuilds and trackside servicing where the exact TRF421X reference is the detail that keeps work moving.