INJORA CNC Aluminum Complete Transmission with 370 Brushed Motor 45T for 1/18 RC Crawler TRX4M Upgrade
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Specifications
- Brand Name
- INJORA
- High-concerned chemical
- None
- Is Electric
- No Battery
- Is it battery/power supply
- N
- Is it charger/adapter
- N
- Origin
- Mainland China
- Is Batteries Included
- No
- Material
- Composite Material
- Recommend Age
- 14+y
- RC Parts & Accs
- Servo Accessories
- Size
- for 1/18 RC Crawler
- For Vehicle Type
- Cars
- Use
- Vehicles & Remote Control Toys
- Upgrade Parts/Accessories
- Hydraulic Transmission Box
- Remote Control Peripherals/Devices
- Motor
- Tool Supplies
- Assembly Category
- Quantity
- 1 pcs
- Technical parameters
- value 2
- Model Number
- TRX4M
- Four-wheel Drive Attributes
- Assemblage
- Wheelbase
- Screws
Product Description
Note:
This motor pinion is intended for use with the included 24.4:1 gear set only. Do not use with other gear ratios.
Not compatible with the stock TRX4M ESC as it is too weak! Compatible with INJORA MB100 ESC.
Motor waterproof rating: IPX6 (It can run in the rain, or run underwater for a while.)
Features:
Extremely high-strength neodymium magnets for excellent torque
Stronger drag brake and torque delivery than stock motors
Taller Transmission to fit 370 motors
CNC aluminum machined transmission housing
Includes ball bearings
Come with 24.4:1 metal gears (Underdrive 32%)
370 Motor Specifications:
Turn: 45T
Rated Voltage: 7.4V
Total Length: 42.7mm (1.68in)
Motor Diameter: 24.4mm (0.96in)
Motor Magnets: Neodymium magnets (Higher Torque)
Pinion Material: Stainless Steel
Pinion: 9T 0.4mod (Stock TRX4M: 11T)
At No Load Speed: 20000±10％rpm
No Load Current: ≤650mA
Transmission Specifications:
Housing Material: Aluminum
Gears Material: Stainless Steel
Color: Black
Internal Gears: 24.4:1 gear set, underdrive 32%
Package List:
1 * 370 Brushed Motor
1 * Complete Transmission
Not compatible with the stock TRX4M ESC as it is too weak! Compatible with INJORA MB100 ESC.
Motor waterproof rating: IPX6 (It can run in the rain, or run underwater for a while.)
Features:
Extremely high-strength neodymium magnets for excellent torque
Stronger drag brake and torque delivery than stock motors
Taller Transmission to fit 370 motors
CNC aluminum machined transmission housing
Includes ball bearings
Come with 24.4:1 metal gears (Underdrive 32%)
370 Motor Specifications:
Turn: 45T
Rated Voltage: 7.4V
Total Length: 42.7mm (1.68in)
Motor Diameter: 24.4mm (0.96in)
Motor Magnets: Neodymium magnets (Higher Torque)
Pinion Material: Stainless Steel
Pinion: 9T 0.4mod (Stock TRX4M: 11T)
At No Load Speed: 20000±10％rpm
No Load Current: ≤650mA
Transmission Specifications:
Housing Material: Aluminum
Gears Material: Stainless Steel
Color: Black
Internal Gears: 24.4:1 gear set, underdrive 32%
Package List:
1 * 370 Brushed Motor
1 * Complete Transmission
Pros & Cons
Pros
- CNC aluminum construction for precise, durable transmission.
- Includes 370 brushed 45T motor with IPX6 waterproofing.
- Plug-and-play upgrade for 1/18 TRX4M crawlers.
- High torque for off-road performance.
Cons
- Not compatible with stock TRX4M ESC, needs upgrade.
- Pinion only for specific 24.4:1 gear ratio.
- Assembly required, no batteries.
- Limited to 1/18 scale vehicles.
Common Questions
What material is the INJORA CNC Aluminum Transmission made of?
CNC aluminum and composite material for 1/18 RC Crawler.
Is the 370 Brushed Motor compatible with TRX4M?
Yes, complete transmission with 45T pinion for Traxxas TRX4M upgrade.
What motor specs and waterproof rating?
370 brushed motor, IPX6 waterproof, for 24.4:1 gear set only.
Does it include batteries or ESC?
No batteries; compatible with INJORA MB100 ESC, not stock TRX4M ESC.
Shipping for INJORA TRX4M parts from China?
7-20 days standard.
Product information last updated on February 21, 2026