Small Engines (Lawn Mowers, etc.): Drive belt compatibility, hp engines, deck length

Question
I went to home depot to try and get a drive belt for my scotts by John Deere S1642 JD's part# is: GX10851, they could not pull that up, and their stock was packed away due to the end of season.

we have snow coming and I NEED TO GET 1 MORE CUT BEFORE SNOW!

They gave me a POWER CARE BELT FOR A 42" DECK PART#  AND IT SAYS THAT IT REPLACES: O.E.# 754-0349 AND O.E.# 112-0317.

My belt snapped and SHREDDED so I can't match length's.

is there a way of telling if it will work?

thank you for your time and help with everything.

I look forward to hearing from you soon.

*****ANY HELP WOULD BE GREAT, AS WE ARE EXPECTING SNOW WITHIN THE NEXT 48-72 HOURS******
J.

Answer
Jay
The belt you need is a GX10851 and the replacement numbers that you need are

Oem Spec Belt. Replaces OEM: MTD, 95404060B, CUB CADET, 95404060B, JOHN DEERE, GX10851, CUB CADET, 75404060B, MTD, 75404060B, CUB CADET, 75404060, MTD, 75404060, MTD, 95404060, CUB CADET, 95404060 Fits Models: CUB CADET, LT1040 and LT1042 42" cut decks; for 18 and 19 HP engines, MTD, Deck assembly "G" 2005 with 42" cut decks Specs: Application:Deck, Length:96 1/2", Width:1/2", Type:Covered
We carry this belt in stock for List $31.12 your cost is $26.50
You can e-mail us at gb@gbelect.net for more information.