Choosing among RC motors, ESCs & servos can be difficult when both options are brushed motors but the replacement decision is different: one offers several configuration choices, while the other presents a more defined motor format. For this head-to-head, the main questions are whether you want flexibility for a 1/10 RC build or a focused Arrma MEGA 665 option, and whether the $3 price spread matters more than configuration choice.
Quick verdict
Choose the 1p 540 Brushed Motor when selecting among multiple motor configurations is the priority. Its range of turn choices and stated electrical range make it the more flexible option on paper. Choose the Arrma MEGA 665 High Speed Brushed Motor when a defined motor specification and the lower listed price matter more. Both are motors rather than an ESC or steering servo, so this comparison is about choosing the right brushed-motor format.
Price and fit at a glance
| Motor | Listed price | Listed fit |
|---|---|---|
| 1p 540 Brushed Motor | USD 18.99 | 1:10 scale; electric; buggy/crawler |
| Arrma MEGA 665 High Speed Brushed Motor | USD 15.99 | 1:10 scale; Scale vehicle |
Where each motor wins
- 1p 540 Brushed Motor: The stronger use case is a build where the stated 7.2V-12V range or replaceable carbon brush is important. Those details give shoppers more than a single motor label to compare.
- Arrma MEGA 665 High Speed Brushed Motor: The advantage is a clearly defined 14T configuration with built-in cooling fins. That gives the choice a more focused specification for shoppers who already know the motor format they want.
Product notes
1p 540 Brushed Motor

The 1p 540 Brushed Motor is the more informative choice for shoppers comparing physical specifications: it lists a 3.175 mm axle diameter and 50 × 36 mm outer dimensions. Those numbers provide a concrete basis for comparing the motor with an existing build without assigning performance claims to the measurements. It is also a single-piece package, keeping the purchase focused on one motor. The limitation is the $3 higher listed price than the Arrma MEGA 665. The many turn selections add a decision to make, so this is less of a fixed-spec purchase. Its black finish and electric-vehicle application round out the stated configuration.
Arrma MEGA 665 High Speed Brushed Motor

Arrma MEGA 665 High Speed Brushed Motor suits a shopper who wants a clearly named motor format. The MEGA 665 model designation and stated 1:10 compatible scale give shoppers a focused reference for comparing an existing setup. Built-in cooling fins are part of the described configuration, adding another concrete attribute to the choice. The limitation is that the compatible vehicle type is listed simply as Scale, so the application wording is less specific than the 1p motor's buggy and crawler labels. Its 14T specification also offers less selection than a motor sold across multiple turn choices. The lower listed price keeps this option straightforward for price-led shopping.
Final choice by use case
- Choose the 1p 540 for an adjustable electrical setup, a replaceable carbon brush, or a shopper who wants to compare several turn choices.
- Choose the Arrma MEGA 665 for a defined 14T motor with built-in cooling fins and the lower listed price.
- For either choice, keep the decision centered on the stated 1:10-scale fit and the motor details that match the intended RC build; neither option is an ESC or servo replacement.