1/2" x 115-1/4" . I've ordered from eBay this belt: http://cgi.eBay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=150634019626&ssPageName=STRK:MEAFB:IT#ht_8033wt_1001
and hope it will fit good, it's only 1/4" shorter but I think no problem
A102
it is 1/2"x 143-5/16"
Question is too vague as ther are more than one size deck.
what size is the belt for a 46 in cut deck belt with 6 pulley's.
43
Most LT12H mowers take a #213676 OEM belt or #6885 Gates belt for the blade application
Hard to answer without a deck size.
a115 for triple deck
Gates
5/8 x 57"
somewhere in the 44" size but best to look on the belt for a number or remove it and match it to a new belt. might also measure around around the pulleys with a small rope/string if you don't have a old belt to get the size of the belt.
the drive belt is 76 length 1.5 width