The YIKONG YK4107 RC Car 17G Servo (Part No. 21110) is a compact servo designed to control the vehicle's functional mechanisms. It is primarily used for the front differential lock, rear differential lock, and gear shifting system. By installing this servo, your YIKONG YK4107 RC Car can remotely engage or disengage the differential locks and switch gears, improving off-road capability, recovery performance, and overall driving control.

What Does the YIKONG YK4107 RC Car 17G Servo Do?
The primary function of the 17G Servo is to convert signals from the transmitter into precise mechanical movement, allowing accurate control of the differential locks and gear shifting mechanism.
After installing the YIKONG YK4107 RC Car 17G Servo, it can perform the following functions:
- Control the front differential lock
- Control the rear differential lock
- Operate the gear shifting mechanism
- Improve off-road capability
- Increase steering and driving precision
- Enhance recovery performance on challenging terrain
For drivers who frequently tackle rocks, mud, sand, and steep climbs, the YIKONG YK4107 RC Car 17G Servo is an essential component for unlocking the vehicle's full functionality.

Where Is the 17G Servo Installed?
The YIKONG YK4107 RC Car uses the 17G Servo in three different functional positions, with each servo controlling a specific mechanism.
Installation locations include:
- Front Differential Lock
- Rear Differential Lock
- Gear Shifting System
Each function requires its own dedicated 17G Servo. During installation, ensure the servo horn, linkage, and travel are correctly adjusted for smooth operation.


Why Upgrade or Replace the 17G Servo?
The 17G Servo provides fast and precise control, allowing the YIKONG YK4107 RC Car to quickly adapt to different driving conditions and improve overall driving performance.
Key advantages include:
- Fast response speed
- Precise movement
- Stable operation
- Easy installation
- Direct fit for the original mounting locations
- Restores or enhances vehicle functionality
Whether for everyday driving or technical rock crawling, the 17G Servo delivers reliable control performance.
Daily Usage Tips
Proper operation and routine inspection can significantly extend the service life of the YIKONG YK4107 RC Car 17G Servo.
Recommended practices:
- Avoid keeping the servo in a stalled position for long periods.
- Do not force the differential lock mechanism by hand.
- Regularly inspect the linkage for looseness.
- Check that all mounting screws remain secure.
- Clean and dry the servo after driving through water.
- Inspect the servo wire for wear or damage.
Routine maintenance helps keep all functions of your YIKONG YK4107 RC Car operating smoothly and reliably.

FAQ
Q1: Which models is the 17G Servo compatible with?
This servo is designed specifically for the YIKONG YK4107 RC Car.
Q2: Where can the 17G Servo be installed?
It can be installed in the Front Differential Lock, Rear Differential Lock, or Gear Shifting positions.
Q3: Can one servo control multiple mechanisms?
No. Each function should use its own dedicated 17G Servo to ensure accurate operation and reliable performance.
Q4: What should I do if the 17G Servo responds slowly?
Check the power supply, inspect the servo wiring, and ensure the linkage moves freely without binding or excessive resistance.

Product Specifications
| Item | Specification |
|---|---|
| Product Name | 17G Servo |
| Part Number | 21110 |
| Compatible Model | YIKONG YK4107 RC Car |
| Part Type | Original Parts |
| Package Quantity | 1pc |
| Mounting Locations | Front Differential Lock, Rear Differential Lock, Gear Shifting |
Where to buy?
>>>Click here to buy: 17G Servo (Part No. 21110) for YK4107
Conclusion
The YIKONG YK4107 RC Car 17G Servo (Part No. 21110) is an essential electronic control component for operating the front differential lock, rear differential lock, and gear shifting system. It provides fast, accurate, and reliable movement, allowing the YIKONG YK4107 RC Car to quickly adapt to changing terrain. Whether climbing rocks, crossing mud, or navigating technical trails, the 17G Servo helps maximize traction, improve driving stability, and enhance the overall off-road experience.
