UFP Spindle End Hardware Kit – DW-813 / SN-813 / LS-813 Components Part Number: SN813K The SN813K spindle end kit includes the essential UFP-style components used on select trailer axle spindle assemblies. This hardware set replaces worn or damaged spindle retaining parts and is commonly used with spindles that utilize the 34456U washer and 13/16" spindle nut. Designed for reliable service and proper hub retention. Features Replacement spindle end hardware for UFP-style axle systems Includes D-washer, spindle nut, nut shield, and cotter pin Supports proper bearing preload and hub retention Cost-effective alternative to OEM spindle end service kits Simple installation using standard hand tools Specifications Component Description DW-813 D-Washer (for keyed spindle applications) SN-813 Spindle lock nut LS-813 Lock nut shield Cotter Pin Cotter pin for nut retention Washer Compatibility Used with 34456U spindle washer Nut Size 13/16" (spindle nut application) This kit is typically used on UFP-style trailer axle spindle assemblies. As variations exist between axle models and manufacturers, always compare your existing spindle hardware before installation. View More Axle Parts