Ultra-Fab 48-979550 Loaded Hub/Drum Assembly 3500lb 5-Lug 4.5" Bolt Circle for 10" Brakes

The Ultra-Fab 48-979550 Loaded Hub/Drum Assembly is a complete, ready-to-install brake hub solution rated for 3,500 lb capacity, designed for trailer axles equipped with 10-inch electric brakes. Built from solid grey iron for maximum durability, this assembly is precision-machined to deliver consistent, reliable stopping performance on RV, boat, utility, and cargo trailers.

Key Features:

• 3,500 lb load capacity — rated for standard single-axle trailer applications
• 5-lug bolt pattern on 4.5" bolt circle — 5 studs with ½"-20 threaded bolts
• Compatible with 10" electric trailer brakes
• Fully loaded assembly — inner and outer races, bearings, and grease seals come preloaded with grease already packed in place
• Includes: cone wheel nuts, hub cap, and cotter pin — everything needed for a complete hub installation
• Solid grey iron construction — precision-machined for extended brake life and wear resistance
• 5-year warranty — backed by Ultra-Fab Products

The 48-979550 is a direct-replacement loaded hub and drum assembly ideal for trailers running a 5 on 4.5 bolt pattern. Because all bearings, races, seals, and hardware are pre-installed from the factory, installation is straightforward and no additional bearing packing is required.