Small Engines (Lawn Mowers, etc.): front engine drive belt size, mtd, lawn mower

Question
I need to know the size of the front engine drive belt for the b&s model 42a707 18.5 hp 46 inch deck ranch king riding lawn mower.  The engine drive belt that was on it blew to shreds and I have no idea of what size to replace it with.

Answer
Ranch Kings are usually made by MTD.  On the rear or the mower, under the seat or fender,  or under the hood or dash, you should find a sticker about the size of a business card. The mower model number will be on this sticker. Send me the mower model number and I can look up the belt part number.

Eric