TRF421X Aluminum Upper Arm Mount B Blue Part

The TRF421X Alum. Upper Arm Mount B Blue is a model spare part shaped for suspension-related maintenance on the TRF421X platform. Its blue aluminum construction gives this mount a clear material identity and a direct role within the chassis, where an upper arm mounting point needs the correct designated version. As an Upper Arm Mount B component, it is suited to replacing a worn part during servicing or keeping a build supplied with the proper hardware for repair work. The aluminum format makes it a focused choice for model workshop use, especially when a chassis requires the exact mount position rather than a generic fitting. The blue finish also helps distinguish this version from other small chassis parts during setup, storage or rebuild tasks. For model maintenance, a clearly identified suspension part can save time when sorting components on the bench. This part fits naturally into rebuild sessions, race-day spares storage or routine chassis upkeep. It can be kept on hand for planned servicing, damage replacement or parts organisation within a TRF421X setup, where the correct mount designation matters as much as the material itself.