Tamiya DT02/DT03/DT04/Hornet EVO Aluminum Gearbox Upgrade - JR-THNE06-LB by Jazrider  [JR-THNE06-LB]

Precision Aluminum Gearbox for Tamiya DT Platforms

The JR-THNE06-LB aluminum gear box is an aftermarket replacement part designed for RC-scale Tamiya DT02, DT03, DT04 and Hornet EVO chassis. Machined from solid aluminum and finished in blue anodize, the housing swaps in for the stock plastic case to give a firmer mounting point for the spur and pinion, and to better stand up to heavier-duty setups and tuning loads.

Installation notes: this unit installs as a direct-fit replacement for the listed Tamiya models, aligning with existing mounting holes and bearing seats so pulley, spur gear and motor positions are preserved. During rebuilds inspect the spur and pinion for wear and ensure bearings are fully seated before final assembly. Apply light thread-lock only where metal-to-metal fasteners share threads with chassis parts and verify fastener compatibility first.

Tuning role: fitting an aluminum gearbox reduces flex around the spur area and helps maintain gear mesh under increased torque from upgraded motors or larger pinions. The metal housing also improves heat dispersion versus plastic, which can aid consistency in longer runs or practice sessions.

This aluminum gear box suits hobbyists seeking a durable, direct-fit upgrade to improve chassis stiffness and gear reliability on Tamiya DT-series platforms.