YIKONG YK4084 RC Car Parts 775 brushed motor 14062
The YIKONG YK4084 RC Car comes with a 775-size brushed motor, part number 14062 in the official parts list. Torque is plenty for crawling, but don't expect it to be fast or run cool. The standard version uses the brushed 14062, while the Pro version swaps to a Hobbywing brushless system (part number 14400 for the brushless motor). If you run water and mud often, the motor is one of the more easily overlooked wear parts.
1. Original Configuration
The standard YIKONG YK4084 RC Car uses a high-torque 775 brushed motor (14062) paired with a Hobbywing 880 80A waterproof brushed ESC (14061). The 775's character is big size and strong low-end torque—good for crawling, but not high RPM. The Pro version swaps to a Hobbywing 1800KV brushless system (14400), so the two versions serve different purposes.
2. Where Brushed Motors Wear
Brushed motors have carbon brushes inside, and brush wear is physics. After water and mud runs, if not cleaned promptly, the bearings and brush area collect grime. Symptoms: sluggish start, increased noise, or occasional failure to spin. The 14062 motor itself isn't expensive, but removal involves the gearbox area—labor costs more than the part.
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3. When to Replace
If your YIKONG YK4084 RC Car shows startup shudder, noticeably worse low-speed linearity, or a motor can that's too hot to touch (after ruling out gearing and load issues), it's time to consider a new motor. Don't wait until it stops completely—brushed motor degradation is gradual, and replacing early gives a better experience.
4. Upgrade Advice
For peace of mind, replace with the same 775 brushed motor—buy the 14062, drop-in with no modifications. If you want brushless, reference the Pro version's Hobbywing 1800KV setup (14400), but the ESC must be changed too, which raises cost. Ask yourself first: are you annoyed by the speed, or by the maintenance? Slow means brushless; maintenance means keep a spare 14062 as a consumable.
5. FAQ
Can I rinse the 775 motor with water?
Don't spray directly into the bearings and brush area. After water runs, wipe the case dry and add a drop of bearing oil—safer than rinsing.
Does a brushed motor need break-in?
Run the new motor at low speed for a pack or two so the brushes seat against the commutator, then drive normally.
Can 14062 and 14400 be swapped directly?
No. 14062 is brushed and pairs with the 880 brushed ESC; 14400 is brushless and needs a brushless ESC—the entire power system must be changed.
6. Conclusion
The 775 brushed motor 14062 in the YIKONG YK4084 RC Car is adequate crawling power, but it's a wear item. Dry it properly after water and mud, and replace it when startup gets sluggish—don't force it.