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⚡ Upgrade your kid’s ride to pro-level speed and torque!
This 2-pack of POLYNX 12V RS550 high-speed motor gearboxes delivers 40,000 RPM and 45 watts of power, designed as universal replacements for kids’ ride-on cars. Featuring a 12mm shaft diameter and easy plug-and-play installation with included couplers and cables, these gearboxes offer a high-torque upgrade that transforms electric ride-on toys into thrilling speed machines.

| ASIN | B0D54M1H77 |
| Best Sellers Rank | #128,856 in Toys & Games ( See Top 100 in Toys & Games ) #209 in Kids' Ride-On Replacement Parts |
| Brand Name | POLYNX |
| Customer Reviews | 3.8 3.8 out of 5 stars (78) |
| Horsepower | 45 watts |
| Included Components | 2 Gearboxes, 2 Adapters, 2 Motor Cable |
| Item Dimensions W x H | 3.71"W x 4.6"H |
| Item Type Name | Gearbox |
| Manufacturer | POLYNX |
| Material Type | Plastic |
| Model | White Coupler |
| Model Name | 12V RS550 40000RPM |
| Number of Items | 2 |
| Part Number | RS550 |
| Shaft Diameter | 12 millimeters |
| Speed | 40000 rpm |
| UPC | 782331890009 |
| Voltage | 12 volts |
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