John Deere Original Equipment V-Belt – TCU19900 Belt Section: HC Effective Length: 4,459.000 MM Width: 22.330 MM Thickness: 22.310 MM Angle: 34 Material Spec: ARAMID Fits the following Mower models: 1550, 1570, 1575, 1580, 1585, 997, Z997R. This is a genuine John Deere part.