1、Complete Replacement Set: This kit includes L68149 inner bearing x 1, L68111 outer race x 1, L44649 inner bearing x 1, L44610 outer race x 1, 171255TB seal x 1, cotter pin x 1, and dust cap x 1, providing all the necessary components for a full replacement set. 2、Long Lasting Durability: High grade steel alloy bearings ensure superior wear resistance and rust resistance, providing long lasting performance in various harsh environments. 3、Enhanced Vehicle Efficiency: The bearing kit provide excellent support for spindles, reduce hub friction, decrease resistance between towing vehicle and trailer, and improve vehicle's driving efficiency. 4、Easy Installation: Specific for 1‑1/16in to 1‑3/8in trailer axles 3500lb 84 spindles, this bearing kit is designed for compatibility and easy installation to get your trailer back on the road quickly. 5、Perfect Replacement: This wheel hub bearing kit is ideal for renovating and replacing old or damaged marine trailer bearings, thus extending the life of your trailer.