Pack of two 12V 550 40000RPM motors designed to enhance power and speed in children's ride-on toy cars. Constructed with durable plastic housing and a high-quality motor, this gearbox delivers reliable performance and long-lasting durability. The 12V 550 40000RPM drive motor features a 12V DC voltage, 40000RPM speed, 12mm shaft hole diameter, and a compact 35mm motor diameter, ensuring strong performance and smooth operation. Designed for easy installation and replacement with quick-change wire connectors that require no soldering. Suitable for most 12V ride-on toy cars, allowing for straightforward upgrades. Includes model numbers for easy identification and compatibility reference. Ideal for use in children's ride-on vehicles requiring a 12V motor gearbox. Gearbox allows for customization and improved driving experience. For best results, ensure the vehicle's battery is in good condition and properly connected. Color: black. Material: plastic and metal. Slight color variations may occur due to lighting and display differences, but do not affect functionality. Package includes: 2 pcs 550 12V motor gearboxes for kids' ride-on cars. Other items not included.