This deck rebuild kit is specifically designed for the 54 Husqvarna Z254F models that require Cast Iron Spindles. By replacing critical components with this kit, you ensure your mower’s deck operates like new, enhancing cutting efficiency and machine performance. Cast Iron Spindles (3). Replaces part numbers 539131898. Replaces part numbers 582760502, 582760501. 153535, 129861, 173436, 532129861, 532173436. Non-Hub Idler Pulleys (2). 532196106, 196106,197379, 13175. Hub Idler Pulley (1). 196104, 197380, 532196104, 532197380. Always ensure that the part numbers match your model’s requirements for optimal compatibility and performance.