THIS KIT INCLUDES TWO QUILL SPINDLES WITH BEARINGS, PART NUMBER 10189. REPLACES QUILL PART NUMBER 1001200, AND 690488. THE BELT NUMBER 8972 REPLACES 37X75 AND 37X88. THE MULCHING BLADES PART NUMBER 6476 REPLACES PART NUMBERS 95100, 495100, 95101, 56252, 656252, 92418,92419, AND 97-901. TEN MOUNTING BOLTS PART NUMBER 9496 REPLACE 25X6 AND 25X7. IF UNSURE PLEASE EMAIL YOUR MOWER MODEL NUMBER AND WE CAN CHECK THE SPECS.