954-04044A, 754-04044A MTD 50" deck belt.
Fits Residential Zero-Turn (RZT) Mowers with a 50-in Cutting Deck (2007 - 2012)
For Cub Cadet, Troy-Bilt, Craftsman, MTD Gold, White Outdoor and Yard-Man
Fits Cub Cadet  RZT22, RZT50, RZT50 KH, RZT50 KW, RZT50 VT, Z-Force S 48 LP, Z-Force S 48-KH
Fits: Troy-Bilt Mustang RZT 50, Mustang XP
Fits Craftsman: ZTL7000
Fits White Outdoor: ZT-22, ZT-50, ZT-5000
 
Belt Specifications
Belt Length: 134-in
Belt Top Width: .5 (1/2) in
Belt Application: 50 in Deck