Lippert Components 2023133985 Trailer Wheel Bearing Kit 10,000-lb 25580/387A 2-7/8in Seal

The Lippert Components 2023133985 is a complete trailer wheel bearing replacement kit engineered for 10,000-lb axle capacity applications. Featuring industry-standard 25580 outer bearing and 387A inner bearing with a 2-7/8" (2.875") unitized oil seal, this kit provides everything needed to properly service one trailer hub on heavy-duty 10K axles.

Compatible with both Lippert and many competitor axles, this genuine OEM replacement kit delivers a precise fit and restores smooth, safe wheel operation. The high-quality alloy bearing construction reduces vibration and resists heat buildup under sustained load.

Kit Contents:

• Outer bearing: 25580 with matching race 25520
• Inner bearing: 387A with matching race 382A
• Unitized oil seal — 2.875" I.D. / 3.880" O.D.
• Spindle washer (1.5" I.D.)
• Spindle nut (1.5" I.D.)
• Cotter pin (1/4" diameter)

Key Specifications:

• Axle capacity: 10,000 lbs.
• Seal size: 2-7/8" (2.875")
• Bearing numbers: 25580 outer / 387A inner
• Race numbers: 25520 outer / 382A inner
• Coverage: one hub per kit (two kits required per axle)

Industry-standard bearing numbers make identification and cross-referencing simple. The grease seal seats securely against the spindle shaft and hub bore to prevent lubricant loss and contamination. Suitable for DIY installation and professional service shops alike.