Tamiya TB04 Aluminium Front Arm Bulkhead TB4008 by GPM  [TB4008]

Aluminium bulkhead for TB04 front arm

This aluminium front arm bulk is an aftermarket RC replacement designed for the Tamiya TB04 platform. It replaces the stock plastic front bulkhead to provide a stronger, more reliable mounting point for steering linkages and the front suspension assembly.

Because it is an aluminium component, the aim is to improve tuning stability rather than change the TB04 mounting geometry. Switching to metal reduces flex under load, which helps keep steering input consistent during cornering and when making camber or caster adjustments via the front arm mounts. The part mates with the TB04 front mounting locations and uses the chassis standard hardware points.

Installation is a straightforward front-end replacement; always test fit with your existing hop-ups before final installation. This item is intended for RC model tuning and durability testing on TB04 cars and is not for full-size use.