Tamiya 3451585 - Damper Stay Mount (42391 TRF421X)  [3451585]

Damper stay mount for TRF421X

This damper stay mount, identified as Tamiya 3451585 and associated with part code 42391 for the TRF421X, is an RC-scale replacement/hop-up part that defines the shock mounting location on the chassis. It serves as the interface between shock towers and the damper assembly and is intended for use on compatible TRF421X setups.

Functionally, the component controls mounting geometry which affects shock angle, leverage and roll response. When fitting this stay mount, retain original mounting points and hardware from the chassis to preserve intended alignment; the part is meant to match TRF421X mounting architecture rather than change it.

For installation, confirm part numbering (42391) against your chassis documentation before swapping, and inspect mounting holes and fasteners for correct fit. Use standard RC maintenance practice to check thread condition and torque values appropriate for your model's hardware.