Everything you need to repack one trailer hub on a 6,000 lb capacity Lippert, Dexter, or Al-Ko axle -- all correct-grade bearings, cups, grease seal, and cotter pin in a single kit. Stop sourcing individual parts and get rolling with a matched set engineered for your axle.
Bearing repacks are routine maintenance for any towed trailer, and using mismatched components is a leading cause of early bearing failure. The Lippert 333950 kit takes the guesswork out by bundling the exact bearing and cup sizes specified for 6,000 lb axle hubs used by Lippert, Dexter, and Al-Ko -- three of the most common axle brands found under travel trailers, fifth wheels, and utility trailers across North America.
The kit covers one complete hub: both the inner and outer bearing cones, both matching cups, a grease seal, and a cotter pin. If you are repacking both hubs on a single axle, you will need two kits.
Inner and outer bearing cones paired with their correct cups so clearances and load ratings are consistent throughout the hub.
Designed to fit 6,000 lb capacity axles from Lippert, Dexter, and Al-Ko -- the most widely used axle brands in the RV and trailer market.
New grease seal is included so you replace the seal every time you repack, preventing grease migration and water intrusion into the hub.
Every component needed for one hub repack is in the box. No separate orders for cups or cotter pins.
The Lippert 333950 kit contains the following components for one hub:
Trailer wheel bearings operate in harsh conditions: road spray, heat cycles, and sustained load. Industry guidelines and most axle manufacturers recommend inspecting and repacking bearings every 12,000 miles or once per year, whichever comes first. Full-timers and frequent towers should inspect more often.
Signs that bearings need attention include wheel wobble, grinding or rumbling noise from the wheel area, excessive heat at the hub after a short drive, or grease leaking past the seal onto the brake drum. Catching a failing bearing early prevents hub destruction and potential wheel-off events on the highway.
This kit is designed specifically for 6,000 lb (6K) capacity axle assemblies. The bearing numbers 15123/15245 (outer) and 25580/25520 (inner) are the standard sizes for this hub class and are shared across Lippert, Dexter, and Al-Ko axle lines at this weight rating. Always confirm your axle's weight rating on the axle tube tag before ordering.