This is a genuine Power Wheels replacement part, it is sold individually.
The purpose of the Cap Nut is to secure the wheels on the models shown below.
When removing this part it usually will be damaged in the process.
It is advisable to order a few extra to keep on hand.

This is a genuine manufacturer approved replacement part designed for use with Power Wheels battery powered vehicles. This wheel connects to the gearbox and drives the unit. It is made out of plastic and it is sold individually. To complete this repair you would need a wrench.

Genuine Power Wheels replacement part, this item is sold individually.
This is the part of the Power Wheels models listed below that secures the wheel to the axle of the vehicle.
To remove this part it may be damaged in the process.
It may be a good idea to have a few extra on hand.

Genuine Authentic Manufacturer Approved replacement part used on some Power Wheels. This Wheel is made out of Plastic and it is Sold Individually. Please note: The hubcap, Rear Wheel Driver and Front Wheel Bushing for this wheel are Sold Separately.

Genuine Power Wheels replacement part, this item is sold individually.
This is the Right Front Wheel for the Power Wheels models below.
The Wheels are a wear item, because of being driven on asphalt, concrete and other abrasive surfaces.

Genuine Power Wheels replacement part, this item is sold individually.
The wheel is used on the Power Wheels models shown below.
Because this part is made of plastic, and most of the time these awesome cars are driven on asphalt or concrete.
The tires will eventually wear down and need to be replaced.
This is the Front Left Wheel