I have a sunbeam 18 inch twin electric mower, I need part # 47-4798.

Hi,
Since Sunbeam no longer makes a mower, do you think you could at least give a hint at what it is you seek. Blade, brushes, switch, etc. A model number might assist in getting and answer. Otherwise, see if you can buy an old one on eBay for parts.
Peace,
Clarke