Tamiya 1/14 RC Grand Hauler
3‑Speed On‑Road Tractor Semi Truck Kit – Dual Rear Axle (10×8)
(Item #56344)
Overview
Classic American‑Style Big Rig with Realistic 3‑Speed Drivetrain
The Tamiya Grand Hauler (Item #56344) is a 1/14 scale electric on‑road tractor‑truck assembly kit that recreates a bold, custom North‑American‑style show truck. Known for its massive proportions, chrome accents, and unmistakable presence, the Grand Hauler has become one of the most popular platforms in Tamiya’s legendary 1/14 truck lineup.
Built on a highly detailed metal ladder‑frame chassis and equipped with a servo‑shifted 3‑speed transmission, this kit delivers exceptional scale realism, mechanical authenticity, and expandability for serious RC truck enthusiasts.
About the Grand Hauler 10×8
Body & Scale Detail
The Grand Hauler features a highly detailed ABS plastic body with classic American sleeper‑cab styling. Scale realism is enhanced with:
- Chrome‑plated grille, bumper, mirrors, horns, and trim
- Adjustable metal mirror stays
- Light buckets ready for optional LEDs
- Decal set and plated detail parts
The body is supplied unpainted, allowing builders to create a fully custom finish or replicate the box‑art scheme.
Ladder‑Frame Chassis & Suspension
Underneath the cab is Tamiya’s proven 1/14 tractor‑truck ladder‑frame chassis, constructed with:
- Aluminum side rails
-
Resin cross members for rigidity and durability
Suspension is highly realistic, using:
- Metal leaf springs front and rear
- Aluminum friction dampers
- Floating front axle and dual driven rear axles
This setup closely mirrors full‑scale semi‑truck construction and delivers smooth, stable on‑road handling. [tamiya.com]
3‑Speed Transmission & Drivetrain
Power comes from a front‑mounted Type 540 brushed motor, transmitted through a servo‑shifted 3‑speed gearbox to both rear axles, each equipped with differential gears for smooth cornering.
Selectable gear ratios include:
-
1st gear: 32.49 : 1
-
2nd gear: 17.76 : 1
-
3rd gear: 10.66 : 1
A minimum 4‑channel radio system is required to operate gear shifting. [tamiya.com]
Optional Lights, Sounds & Vibration
The Grand Hauler is compatible with Tamiya’s Multi‑Function Control Units (MFC‑01 / MFC‑03, sold separately). When installed, these units add:
- Realistic diesel engine sounds
- Air horn and gear‑shift effects
- Headlights, brake lights, turn signals, and hazards
- Chassis vibration synchronized with throttle
This transforms the truck into a fully immersive scale driving experience. [tamiyausa.com]
Key Features
- 1/14 scale electric on‑road tractor‑truck kit
- Iconic Grand Hauler American show‑truck styling
-
Metal ladder‑frame chassis with leaf‑spring suspension
- Servo‑shifted 3‑speed transmission
-
Dual rear axles (10×8 configuration) with differentials
- Compatible with all Tamiya 1/14 semi‑trailers
What’s Included
- Tamiya Grand Hauler ABS body (unpainted)
- Ladder‑frame chassis components
- Type 540 brushed motor
- Wheels and tires
- Chrome‑plated detail parts
- Decal sheet
- Instruction manual
(Electronics not included for most markets)
Needed to Complete
- Minimum 4‑channel radio system
- Electronic Speed Controller (ESC) or Tamiya MFC unit
- Steering servo and shift servos
- 7.2 V NiMH or 7.4 V 2S LiPo battery
- Compatible battery charger
- Tamiya TS paint for ABS body
- AA batteries for transmitter
Recommended For
- Scale RC truck enthusiasts
- Experienced builders
- On‑road scale driving and trailer hauling
- Custom paint and detailing projects
Specifications
- Scale: 1/14
- Drive system: Rear‑wheel drive (dual rear axles)
- Chassis: Aluminum ladder frame
- Suspension: Metal leaf springs (front & rear)
- Transmission: 3‑speed, servo‑shifted
- Length: 692 mm
- Width: 192 mm
- Height: 330 mm
- Motor: Type 540 brushed
- Assembly level: Kit (assembly & painting required)
