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⚡ Upgrade your kid’s ride with power, precision, and pro-level control!
The POLYNX 12V DIY Modified Wires Harness is a comprehensive upgrade kit for kids’ electric ride-on cars, featuring a high-power 40A 200W control box, 2.4G Bluetooth remote control, and easy-install sockets. Designed for hands-on enthusiasts, it includes all essential wiring components, safety features like overload protection, and is backed by over a decade of professional support, ensuring a fast, reliable, and customizable ride experience.







| ASIN | B0BGP91ZK9 |
| Age Range Description | Kid |
| Best Sellers Rank | #170,095 in Toys & Games ( See Top 100 in Toys & Games ) #425 in Kids' Ride-On Replacement Parts |
| Brand Name | POLYNX |
| Color | Red |
| Customer Reviews | 4.2 out of 5 stars 87 Reviews |
| Educational Objective | Game, play |
| Included Components | controller, remote control, switch, wires |
| Item Dimensions | 7.87 x 5.51 x 3.9 inches |
| Item Type Name | 12VWIRES |
| Item Weight | 0.58 kg |
| Manufacturer | POLYNX |
| Manufacturer Maximum Age (MONTHS) | 100 |
| Manufacturer Minimum Age (MONTHS) | 18 |
| Manufacturer Part Number | WRIERX74RC12V |
| Material Type | Plastic |
| Model Number | 12RX71 |
| Number of Players | 1 |
| Operation Mode | Manual |
| Power Source | Battery Powered |
| Set Name | POLYNX 12V DIY Ride-On Power Wheel Upgrade Kit (1 Set) |
| Size | 12V |
| Supported Battery Types | 12V |
| Theme | Ride on car upgrade |
| UPC | 738058209334 |
D**S
As described worked great
Worked great 👍
K**N
Worth all your moneys !
Probably the best darn module and harness out there . Currently running 2 12V 40000 motors and man it runs like a beast ! Been running for a whole year and we abuse this tiny car
N**S
Good, but not plug and play
I used this kit to repair my child's ride on toy that had a bad controller board. Because it was an off-brand there were no direct replacements so I decided to just replace everything. Overall, it seems better made than what the car came with. However, a wiring diagram should have come in the box rather than just the Amazon listing. Unless you have a model very similar to this one, this is a kit for someone comfortable crimping/soldering wiring terminals. Mounting the switch gear and running new wires is a project in and of itself. The end result seems good. I'm also running an 18v power tool battery conversion kit and it seems to handle it just fine.
C**E
Build surprised well !
Only purchased this for the main controller and end up using all the pieces and switches due to them being better quality and more Kid Friendly. Accidently put 24V to it and reversed polarity and it's still working like a champ. This kit is great for any vehicle pretty much (even homemade), it comes with everything beside the vehicle and battery. I'm really impressed with them.
J**E
It works
Simple a few mods on the old best choice jeep and now I can fight for control of the Jeep against a 2yo that is the next she hulk
A**R
Waist of time and money
Not at all. It said it was the exact same for the powerwheels I had and its not at all. Big pain in my a$$. Its open so I cant return it. I now have to pay someone to try and figure it out. Complete waist of my time and money.
D**D
Works well
Worked well, once I set it up.
J**D
Doesn't last
I liked that this product had all the switches and attachments. What I don't like about this product is that after a month of use that my son got to play with his quad, today he started to ride it and it started going in reverse while he still had it in drive. Now I will tell you everything under the seat to the drive motors are brand new, and NOW my son CANT ride his favorite toy.
M**Y
Questionable
Had a bunch of issues with the product my car doesn’t have a steering motor and it didn’t work so I had to rewire
A**E
Hola la vida feliz
Me gustó este producto para ponerle un poquito más de velocidad a un carrito de mis nietos es de que se diviertean más ,Feliz navidad
Trustpilot
2 weeks ago
3 days ago