6 Bolt 5.5 Circle Trailer Wheel Hub Fit for 5200 to 6000 lbs #42 Trailer Axle with 15123 Bearing Kit and Cone Wheel Nuts 1/2" - 20 Thread 6 Lug Trailer Wheel Hub Kit Including: 2 pcs 6 on 5,5" Trailer Hubs, 2 pcs 25580 Inner Bearings(1-3/4" I.D), 2 pcs 15123 Outer Bearings(1-1/4" I.D), 2 pcs 2.250" I.D Grease Seals, 2 pcs 2.125" I.D Grease Seals, 2 pcs E Z Lube 2.44" Grease Caps, 2 pcs Dust Cap Plugs, 12 pcs Cone Wheel Nuts 1/2" - 20 Thread AuraWINS 5200 to 6000lbs Trailer Hub Kit is Made of Alloy Steel Material, Which has Excellent Corrosion Resistance and Durability, Ensure Your Driving Safety AuraWINS 6 on 5.5" Boat Trailer Hub Kit are Packaged in Bubble Boxes, Which Can Effectively Avoid Zero Level Collisions and Wear During Transportation, Ensuring That the Items are Delivered to You Intact and Undamaged Please Check the Model Before Purchasing to Ensure That the Parts are Suitable,Please Contact Us Promptly If You Have Any Questions Package Including: 2 pcs 6 on 5.5" trailer hubs 2 pcs 25580 inner bearings(1-3/4" I.D) 2 pcs 15123 outer bearings(1-1/4" I.D) 2 pcs 2.250" I.D grease seals 2 pcs 2.125" I.D grease seals 2 pcs E Z lube 2.44" grease caps 2 dust cap plugs 12 pcs cone wheel nuts 1/2" - 20 thread Please check your trailer size before you order avoid Inappropriate size make trouble to you.