THIS KIT INCLUDES THREE SPINDLES, THREE BLADES, THREE PULLEYS, AND A BELT. THE SPINDLES REPLACE OEM# 618-04126, 618-04126A, 918-04125, 918-04125B, 918-04126, 918-04126A, 918-04126B, 618-04126, 618-04126A, 918-04125, 918-04125B. 618-04126, 618-04126A, 918-04125, 918-04125B, 918-04126, AND 918-04126A. HARDWARE IS INCLUDED. THE BLADES REPLACE SPM199562627, 490-110-C123, 742-04053A, 742-04053B, 742-04053C, 942-04053A, 942-04053B, 942-04053C, OCC-742-04053, 742-04053B, AND 112-0316. BLADE SPECS: LENGTH: 18" CENTER HOLE: 3 PT. WIDTH: 2 1/2" THICKNESS: .149". THE PULLEY REPLACES 756-04129B, 756-04129C, 956-04129, 956-04129C AND 753-08171. PULLEY HEIGHT: 1" ID: 3/8" OD: 4 7/8". AND THE BELT REPLACES 754-04044, 754-04044A, 954-04044, AND 954-04044A. BELT SPECS: WIDTH: 1/2" LENGTH: 134". FITS MODELS I1050, LT, SLT AND RZT WITH 50" DECK I1050, LT, SLT AND RZT WITH 50" DECK, ZTL 7000 WITH 50" DECK.