The right bearings for your 7,000-lb axle hub -- all four critical components in one kit. Covers both the inner and outer bearing positions with industry-standard numbered races and cups so you can complete a full repack or bearing swap without hunting down individual pieces.
Lippert part number 2023133983 (vendor PN 08-7922) is a purpose-built bearing replacement kit for Lippert-compatible 7,000-lb trailer axle hubs. Whether you are doing a routine repack before a long trip or replacing bearings after a hub overheating event, this kit puts the correct inner and outer bearing cones and races in your hands without guesswork.
The kit uses well-established industry-standard bearing numbers that match the original specifications for this axle class. The 25580 inner bearing cone and 25520 inner cup pair with the 14125A outer bearing cone and 14276 outer cup -- the same combination specified by Lippert and widely used across 7,000-lb capacity trailer axle hubs on travel trailers, fifth wheels, and toy haulers.
25580 tapered roller cone rated for the radial and thrust loads of a 7,000-lb axle hub.
25520 inner race cup -- matched to the 25580 cone for correct geometry and load rating.
14125A tapered roller cone for the outboard bearing position on the spindle.
14276 outer race cup -- paired with the 14125A cone for proper fit and load distribution.
Note: This kit supplies bearings and races for one hub. For a full axle service (two hubs), order two kits. Bearing grease, hub seal, and cotter pin are not included.
These bearing numbers follow the Timken/industry standard designation system used across most North American trailer axle manufacturers. If your existing hub hardware is stamped or marked with 14125A, 14276, 25580, or 25520, this kit is a direct match. Always verify your existing bearing numbers before ordering if you are unsure of your axle rating.
Tapered roller bearings in trailer hubs are wear items. Lippert and most axle manufacturers recommend inspection at least once per year or every 12,000 miles -- whichever comes first. Replace immediately if you detect any of the following:
When pressing new cups into the hub bore, ensure each cup is fully seated -- flush or slightly below the hub face. A cup that is not fully seated will allow the cone to cock under load, leading to premature failure. Use a brass punch or proper bearing driver; never drive on the roller cage directly. Pack the cone thoroughly with bearing grease before installation, and fill the hub cavity approximately one-third full.