Keep your trailer running smoothly with this essential spindle nut kit designed for UFP Dexter trailer axles rated at 3,500 lb capacity. This comprehensive kit includes a 13/16-inch spindle nut, bottle cap, and washer - all the components you need for proper wheel bearing maintenance and secure wheel attachment. The kit ensures precise fitment and reliable performance for your trailer's axle assembly. Perfect for maintaining proper bearing preload and preventing wheel separation, this spindle nut kit is a crucial component for trailer safety and maintenance. Whether you're performing routine maintenance or replacing worn components, this kit provides the exact parts needed for UFP Dexter 3,500 lb axles. Proper installation helps maintain correct bearing adjustment and wheel retention, essential for safe trailer operation.