Description Pack of two feature-rich 12V 550 40000RPM motors designed to enhance power and speed in kids' ride-on toy cars. Constructed with heavy-duty plastic and a high-quality motor, this upgrade ensures durability, reliable performance, and extended lifespan. The high-speed 12V 550 motor delivers 40000RPM with a 12mm shaft hole diameter and a compact 35mm motor diameter, providing efficient performance and a smooth riding experience. Designed for easy installation and replacement, it features quick-change wire connectors that require no soldering. Compatible with most 12V ride-on toy cars, this motor supports straightforward upgrades and modifications. Includes model numbers for easy identification and compatibility reference. Ideal for use in children's ride-on vehicles requiring a 12V motor. Gearcases can be quickly installed or removed. For best results, ensure the vehicle's battery is in good condition and properly connected. Color: black Material: plastic + metal Note: Slight color variations may occur due to lighting and display differences. This does not affect functionality. Package Contents: 2 Pcs Kids Ride On Car 12V 550 Motor. Only the items listed are included. Measurement may vary by +/- 1-3cm due to manual measurement.