This Tamiya 3404179 bumper support is an RC-scale replacement item intended for TRF421 series maintenance and setup. It provides a simple structural mount for the front bumper area on TRF421-compatible chassis, helping preserve alignment after knocks and during setup adjustments.
Supplied as a hop-up replacement, the unit is typically fitted when renewing worn components or when fine-tuning front-end geometry for track work. It maintains reliable mount points so suspension and steering settings stay repeatable across runs.
Installation is direct on TRF421-configured vehicles, replacing the stock bumper support without affecting core suspension geometry. When fitting, verify fastener torque and bumper alignment and re-check these after an initial running session to confirm fit and clearance.
Select this part when a direct replacement or a consistent hop-up support is required for TRF421 maintenance and setup tasks.
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