ITEM NAME:RC Vehicle Metal Reduction Main Gear Motor Copper Gear Spare For WLtoys 1:14.Applicable Model: The differential main gear and motor copper gear set is suitable for WLtoys 1:14 RC car LY-1421 144001. Applicable model: suitable for WLtoys 1:14 RC Car LY-1421 144001. 1 Motor Copper Gear.