THIS KIT INCLUDES TWO SPINDLES THAT HAVE THE LONG SHAFTS, TWO IDLER PULLEYS, TWO BLADES AND A BELT. THE SPINDLES AND SHAFTS REPLACE PART NUMBERS 88-4510, 14121, 285-997, 14132, 107-9161, 285-609, 80-4341, AND THE SPACER REPLACES 80-4380. FITS MODELS 71180-71428, AND 74301-74403. THE IDLER PULLEYS REPLACE PART NUMBERS 106-2175, 132-9420, AND 12901. THE BLADES REPLACE 106-2247-03 , 110-6568-03, 110-1857-03, 11821, 350-219, AND 94-069. AND THE BELT REPLACES 110-6871, 265-227, AND 14130. SPECS: WIDTH: 1/2" X 112". FITS TIME CUTTER Z420.