best motor for trx4

Best Motor for TRX4: 5 Marvelous Motors on the List!

Finding the best motor for your TRX4 can be a hectic task. But not when you have the right information in hand!

That’s right! We listed the best motor for TRX4 and gave a complete review in this article. We showed how each motor differs from one another. 

By comparing the advantages and disadvantages, we tried to remain transparent with you. So, keep reading this article to the end if you’re really interested in buying a motor. 

Comparison Table: Best Motor for TRX4






INJORA RC Motor 550 Brushed Waterproof Motor

11.1 V


Globact Rc Motor 550 21T Brushed Motor

6 - 8.4 V


Traxxas 3975R Reverse Rotation Titan 550 Brushed Motor

14 V


INJORA 540 Brushed Motor 35T Waterproof Motor

7.4 V


Globact RC 550 Brushed Motor

7.2 V



  • Size: 550
  • Weight: 8.1 ounces
  • Voltage: 11.1 V
  • Efficiency: 77
  • Speed: 11300 RPM
  • Temperature: -10 – 50 degrees Celsius
  • Motor Shaft Length: 11 mm
  • Torque: 350


  • Has a torque of 350 that helps in slow climbs and drag breaks.
  • Runs 15% more in speed than a stock motor.
  • Even on a hot day, the motor doesn’t get hotter than 117 degrees.
  • Runs well with full charge only 4-6 times per month. 
  • Changing to 17T pinion will give you advantage in the torque. 


  • It’s a little bit noisy.

The first motor we’ll review today is the INJORA RC Motor 550 Brushed Waterproof Motor. 

This is a 550 brushed motor with 11300 RPM speed. It means this motor is capable of producing 30% longer armature than a standard 540 motor. 

The best part is you can use this motor in your TRX4 on a hot sunny day. It has a heat resistance technology with a built-in cooling fan. 

So, you get both long run times and speed time by using this motor. Also, you won’t have to worry about the soldering in this case. 

It’s not only compatible with the TRX4 but also with the TRX6 RC car and boats. 

Well, there is a small drawback to this RC motor. It is a little noisy when you power it. But it’s not deafening at all. So you don’t have to worry much about it.

And it’s below $20. So, it’s kinda like a win-win situation for you! 

Globact Rc Motor 550 21T Brushed Motor

Maximum Energy Conservation


  • Size: 550
  • Weight: 8.1 ounces
  • Voltage: 6-8.4 V
  • Efficiency: 77
  • Speed: 12900 RPM
  • Temperature: -10 – 65 C
  • Motor Shaft Length: 3.175 mm
  • Torque: 310


  • Perfect fit for mud and river rides.
  • Doesn’t get as hot as a stock stampede motor.
  • You can use this motor for at least a year.
  • Works like a charm for backyard fun rides.


  • You have to solder the motor yourself.

The next awesome motor that made our list is the Globact Rc Motor 550 21T Brushed Motor. It has an excellent torque making increasing the drivability of your RC.

What’s amazing about this motor is that it maximizes energy consumption. This means you have to worry less about powering it up.

Globact’s this motor also has a cooling fan just like the Injora’s one. But it has more speed capacity than the Injora. As a result, it speeds up and extends the runtime. 

This motor works well for almost a year. So, you can guess the longevity here!

However, it doesn’t serve much in rough terrains. It’s best for backyard races and mud rides. And you have to fix the solders on the motor yourself. 

This TRX4 motor is also under $20. So, overall it’s a good option for you!


  • Size: Titan 550
  • Weight: 8.96 ounces
  • Voltage: 14 V
  • Material: PP
  • Dimensions: 3.55 x 0.55 x 429 inches


  • It’s a forward rotation motor that reverses rotation whenever needed.
  • Even after rough use, it draws up to 40 amps regularly.
  • It takes less time to install.
  • The motor makes your RC noticeably faster.


  • Doesn’t have the capacity to power up more than 14 Volts.

The third best motor for TRX4 is the Traxxas 3975R Reverse Rotation Titan 550 Brushed Motor. Yes, it’s a brushed motor and it outsmarts many brushless motors.

The uniqueness of this motor lies on the rotation it’s capable of. It can rotate in reverse. This makes it different from the other brushed motors. 

If you compare this motor with the previous two, you’ll see that it produces more voltage.  This means this motor has more charging power than the other two.

This 550 motor is better than a standard 540-size motor because it has 30% longer armature. It can produce extreme torque. 

But it’s a few dollars more expensive than the previously reviewed motors. That’s why we kept it in the third position in our list.  


  • Size: 540
  • Weight: 6.49 ounces
  • Voltage: 7.4 V
  • Motor Diameter: 36 mm
  • Shaft Diameter: 3.17 mm
  • Motor Shaft Length: 12 mm
  • Suitable for: 1/10 RC Car


  • It serves smooth operation especially for crawler trucks.
  • Excellent value for money.
  • You won’t have to take much hassle in installing the motor.


  • The motor doesn’t come with a pinion.

We got another Injora product under our list. It’s the INJORA 540 Brushed Motor 35T Waterproof Motor. 

This motor has an excellent build quality and offers a smooth operation. Thanks to the dual-ball bearings that makes the motor more efficient. So, you don’t have to worry about installing the motor to your RC car.

It produces up to 7.4 V which indicates its reliability of power capacity. However, it’s much lighter than the Traxxas 3975R brushed motor. 

This motor has waterproof capacity. You can use it in any rainy and muddy conditions. 

We kept this motor on our list because it is perfectly compatible with crawler trucks. They also work well with scale rigs. 

This motor is also a budget-friendly option. So, you can count on this motor.

Globact RC 550 Brushed Motor

Best Motor for Crawlers


  • Size: 550
  • Turns: 35T
  • Weight: 9.31 ounces
  • Voltage: 7.2 V
  • Material: Iron
  • Speed: 9500 RPM
  • Motor Shaft Length: 16.5 mm
  • Watt: 78-137W


  • Perfect motor for low speed crawlers.
  • Has a decent torque.
  • Works perfectly with a 22T pinion gear. 


  • Not speedy enough for RC races.

The final RC motor we have is the Globact RC 550 Brushed Motor. It’s a gem for low speed crawlers and speaks perfectly for the price.

The motor has a speed of 9500 RPM. This is lower than the previous motors we reviewed above. It also uses 78-137 W wattage per round. 

It’s best for 1/10 RC Scale rock crawlers. And this brushed motor is excellent in performance. 

What’s unique about this motor is that it has excellent torque and drivability. It uses high-purity copper windings. As a result, the efficiency of the motor increases to a maximum level.

It also has a built-in cooling fan which makes the vehicle faster. It increases the runtime and extends the life of the motor. So, you don’t have to worry about hot summer RC rides anymore. 

Overall, it’s the perfect combination for low speed RC rides. 

What Makes a Motor the Best Motor? 

Well, we already reviewed the top RC motors for your TRX4 RC truck. But you should know the specifications a little deeper. 

How would you feel if you could identify what makes a motor great? Continue reading and you’ll get to know the answer!

Size And Measurements

The best size and measurements depend on the size of the RC car. A lot of bigger sized cars use 540 and 550 motors. These are useful in heavier RC cars.

However, if your RC car is smaller in size, it’ll need a small motor. It can be of 370 or 380 in brushed options.


A good thing is to check how many turns the motor is capable of doing. The more KV you’ll see at a motor’s body, the more RPM it has.

This means you’ll get a higher torque motor. And high torque is important for heavier RC cars.  


One thing people tend to forget is the gearing application. When you are changing the motor, you must change the gear too. 

It’s best to start with the manufacturer’s recommendation. 

Motor Type

Now, there are two types of motors – brushless and brushed motors. Though brushed setups have ruled for a while, brushless are the newest technology. 

Always check if the brushless motor is sensored or sensorless. By using censored motors, you’ll get a low RPM. It’ll lead you to a strong, precise feel.

However, the sensorless motors are inexpensive and easy to install. So, you have to keep this in mind also.

In short, these factors will help you to decide which RC motor is appropriate for you. So, when you’re buying a motor, consider these factors right away. 

These are the specifications that make a motor best of its own kind. 

Frequently Asked Questions (FAQs)

Does higher KV mean faster motor?

Yes, higher KV means faster motor. KV is the indicator of revolutions per minute (RPM). This means it describes how much volt a motor puts per minute to run the vehicle. The more the RPM rate is, the more power the RC will get. So, if you want a faster motor, you have to choose a higher KV motor. 

What does the T mean on RC motors?

The T written on the RC motor means the number of turns the motor can take. There is a wire wrapped around a stator inside the motor. The number of times that wire is wrapped, it indicates each turn. Small turns means there’s very less resistance and power and vice versa. 

Do brushless motors wear out?

No, brushless motors don’t wear out. Usually brushless motors have more efficiency and power. Because they are brush-free, they don’t have the risk of getting worn out. These motors are capable of 36,000 rpms. And if they are topped with a higher KV, the motor will have an increased speed.


So, that’s it! We hope you got an overview on the best motor for TRX4. We tried to describe both the pros and cons of each motor. Make sure you consider each specification before buying the motor.

Wishing you good luck!

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