Keep your trailer rolling smoothly with this comprehensive K3-100 bearing kit designed for 5,200-6,000 lb capacity trailers. This complete kit includes premium 25580/20 and 15123/15245 bearings paired with a 10-36 seal, providing everything needed for a proper bearing service. The precisely engineered components work together to ensure reliable wheel rotation and load distribution while protecting against dust and moisture intrusion. Perfect for maintaining trailer hubs and wheels, this kit offers the durability required for heavy-duty hauling applications. Ideal for boat trailers, utility trailers, and other towable equipment within the specified weight range. The included bearings are manufactured to exacting specifications for optimal fit and performance in demanding conditions. K3-100 Trailer Hub Wheel Bearing Kit Fits 5,200 - 7,000 lb.Axles and #42 Spindle 25580/25520 Inner Bearing Set (1-3/4" ID X 3.265" OD) 15123/15245 Outer Bearing Set (1-1/4" ID X 2.441" OD) 10-36/22333TB (2.25" ID x 3.376" OD) Double Lip Grease Seal 2" Cotter Pin