Deck Belt replaces Murray 37 X 80. 1/2" (12.7 MM) X 86-1/4" (2191 MM). Fits 40", 42" & 43" Deck Lawn Tractors. Motion Drive Belt with Dana & Eaton Hydro Units on LT Series with 40",42" & 46" Decks. 12.5HP, 14HP & 18HP LT Hydro 1994 - Current. Polyester Cord Construction.