THIS KIT INCLUDES THREE SPINDLES, THAT REPLACE 143651, 532143651. SPINDLES FIT MODELS: AYP 50" VENTILATED DECK. SPECS: HEIGHT 4 7/8" SPECIALLY DESIGNED TO REPLACE 5 PT. STAR SPINDLE SHAFT. THREE BLADES REPLACE 137380 AND 532137380. THE SPECS ARE LENGTH: 17-3/8" WIDTH 2-1/4" CENTER HOLE 5 PT STAR THICKNESS 0.1600" CUT DIRECTION RIGHT. THREE PULLEYS REPLACE 129861, 153535, 173436, 177865, 532173436, 532 12 98-61, 532 17 34-36 AND 532153535. SPECS ID 5/8" OD 5-3/16" WIDTH 7/8". ONE IDLER PULLEY REPLACES 104360X, 131494, 173438, 532131494, 532173438, AND AM103480 AND AM37321. IDLER SPECS: HEIGHT: 1 1/8" ID: 3/8" OD: 3 7/8". AND ONE BELT REPLACES: 21547082, 21547188, 144959, 532144959, 24690, 532 14 49-59, 531300766, AND 532144959. DECK BELT TYPE, COVERED WIDTH 1/2" LENGTH 95". HARDWARE IS INCLUDED.Warning:Lead-Nickel-Cancer and Reproductive Harm