TAMIYA Hotshot / Super Hotshot / Boomerang / Bigwig Rear Gear Box JR-THS13-GU by Jazrider  [JR-THS13-GU]

Tamiya Hotshot / Super Hotshot / Boomerang / Bigwig Aluminum Rear Gear Box (Gun Metal)
Price:
USD$31.90
Brand:
JAZRIDER
Model:
JR-THS13-GU
Condition:
Brand New
Available in shop
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Aftermarket aluminium rear case for Hotshot kits

The JR-THS13-GU aluminium rear gear box is an aftermarket replacement designed to swap in place of the original plastic rear shell on TAMIYA Hotshot, Super Hotshot, Boomerang and Bigwig models. Its machined aluminum construction and gun metal finish aim to improve rigidity and impact resistance while retaining the stock mounting pattern.

Its intended purpose is to stiffen the rear section and help maintain correct gear alignment under heavier use, which can reduce wear and improve durability for upgraded powertrains or aggressive driving styles.

Fitting notes: the unit keeps the original mounting footprint so existing gears, shafts and bearings are usually reused. After installation, verify gear mesh and free rotation before securing fasteners fully.

Specifications

  • Item: Rear Gear Box
  • Material: Aluminum
  • Model Number: JR-THS13-GU
  • Compatibility: Tamiya Hotshot / Super Hotshot / Boomerang / Bigwig

This aluminium rear gearbox shell is intended for builders who want a direct-fit metal replacement to strengthen the rear area and extend service life on Hotshot-series Tamiya models.

Does this replace the plastic rear case directly?

Yes, it is manufactured to fit the factory mounting points and replace the stock rear gearbox shell on the listed Tamiya Hotshot models.

Is the product a complete gearbox assembly?

No. This product is the aluminium housing only; you will reuse the vehicle's internal gears, shafts and bearings from the original unit.

What should I check after installing the shell?

Confirm gear mesh and shaft alignment, rotate the drivetrain by hand to ensure smooth operation, and tighten screws evenly to prevent case distortion.

How to keep the aluminium shell serviceable?

Clean mating surfaces regularly, check fasteners after heavy use, and inspect for thread or seat damage; replace worn hardware as needed.