Overview
Lock down the 5th wheel mount area on your Tamiya 1/14 scale tractor truck with the Hot Racing CNC Aluminum 5th Wheel Mount Top Cross Brace. CNC-machined from solid aluminum, this direct-replacement brace upgrades the stock plastic 5th wheel mount top cross brace with a stronger, more rigid component — exactly where you need maximum stiffness on a tractor truck that lives or dies by its trailer connection.
The 5th wheel mount area takes load from every trailer maneuver — towing, turning, backing, parking. A flexy plastic cross brace allows that load to twist the chassis, compromising trailer stability and making low-speed maneuvers feel sloppy. The aluminum replacement eliminates that flex, locking the 5th wheel mount tight to the chassis for confidence-inspiring trailer behavior.
Key Features
- CNC-machined aluminum construction
- Direct replacement for stock plastic 5th wheel mount top cross brace
- Greater chassis rigidity for better handling
- Stronger 5th wheel mount foundation
- Includes mounting hardware
Performance Benefits
- Sharper, more confident trailer-towing handling
- Reduced chassis flex around the 5th wheel mount
- Better low-speed trailer maneuverability
- Long-lasting aluminum durability
- More rigid foundation for the entire 5th wheel system
Usage Notes
Replaces stock Tamiya part number 10005473 (G8). Use Tamiya assembly instructions for installation. Apply removable thread-locker on screws threading into metal. Re-torque after the first run with a trailer.
Technical Specs
- Material: CNC-machined aluminum
- Function: 5th wheel mount top cross brace
- Replaces: Tamiya 10005473 (G8)
What's Included
- One (1) aluminum 5th wheel mount top cross brace
- Mounting hardware
Fitment
- Tamiya 1/14 scale R/C tractor trucks
- Tamiya King Hauler
- Tamiya Grand Hauler
- Tamiya 470 Chassis
- Tamiya 620 Chassis
Summary
The Hot Racing CNC Aluminum 5th Wheel Mount Top Cross Brace is the smart stiffness upgrade for the heart of your Tamiya 1/14 tractor truck — the 5th wheel mounting area. Bolt it on for confident trailer handling and a more rigid chassis foundation.
