Specification Brand : iBroPrat BulletPoint1 : 【FIT】For trailer idler hub 5 on 4-1/2" for 3,500 lbs trailer axle.Fits 1-1/16'' to 1-3/8" Trailer Axles 3500lb #84 Spindle. BulletPoint2 : 【HOW TO MEASURE BOLT PATTERN】LENGTH A-5 lug is from the OUTERMOST point of a hole to the CENTER of the second hole.LENGTH D: The Center of hole to the center of the bolt hole next to it.if the length A of measurement is 4.5", the length D of measurement is 2-5/8" and as there are 5 lugs, then the bolt pattern is 5x4.5".If you do not know how to measure, please refer to image 3. BulletPoint3 : 【LUXURY KIT WITH EXTRA ACCESSORIES】This trailer hub kit includes 16pcs accessories units such as Idler hub, L44649 outer bearings, L68149 inner bearings, etc.It even includes Shaft Nuts, Shaft Washers, Cotter Pin.WITH EXTRA 1PCS DUST CAPS & 2PCS SEALS. BulletPoint4 : 【HIGH QUALITY】Strictly following the U.S. G3000 standard, the hub is made of high-quality carbon steel with anti-rust surface treatment; the bearing is made of high-quality bearing steel with precision bearings for low working noise; the grease seal adopts a double-lip design for no leakage.8.6 pounds also shows how heavy it is. BulletPoint5 : 【SIZE & QUANTITY】1PCS Hub(5 bolt 4.5 for 3500lb), 1PCS L44649 Outer bearing (I.D: 1-1/16''), 1PCS L68149 Inner bearing (I.D: 1-3/8''), 1PCS Grease seal (171255TB, 1.719'' I.D), 5PCS Lug nuts (1/2''-20 thread), 1PCS Washer(I.D: 1"), 1PCS Spindle nut (I.D: 1"), 1PCS Cotter pin (L: 2.25"), 2PCS Dust caps (O.D: 1.98''), 2PCS Rubber plugs (2.56" O.D - 1.72" I.D). Please check the image. BulletPoint6 : 【SATISFACTION GUARANTEE】- For whatever reason, if you are not satisfied, you can request a replacement. Please do not hesitate to contact us if you have any questions. We will show you our sincere attitude and satisfactory solution. Please rest assured purchase. BulletPoint7 : 【WELL PACKING 】The parts are individually packed in bubble bags.Protect the small size with the large size.Packed in a heavy duty box.Effectively avoid damage due to parts colliding with each other in the box. Color : 1Set Trailer Hub Kit 5 Bolt 4.5 for 3500LB Color1 : Silver Color2 : Black CompatibleWithVehicleType : Trailer ExteriorFinish : Chrome ExternallyAssignedProductIdentifier : 00810067324571 ExternallyAssignedProductIdentifier1 : 638548238328 ExternallyAssignedProductIdentifier2 : 0638548238328 FinishType : Powder Coated FitType : Vehicle Specific GpsrSafetyAttestation : 1 IncludedComponents : Trailer Idler Hub Kit InstallationType : Snap-On ItemName : iBroPrat 1 Sets Trailer Hub Kit 5 Bolt 4.5, Trailer Axle Kit for 3500 lb 5 Lug Trailer Hub with Extra Dust Cap and Rubber Plug Fits 1-1/16'' to 1-3/8" Trailer Axles 3500lb #84 Spindle ItemPackageDimensions_Height : 20.2946 centimeters ItemPackageDimensions_Length : 11.9126 centimeters ItemPackageDimensions_Width : 18.796 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : trailer-hubs Manufacturer : iBroPrat Material : Rubber Material1 : Carbon Steel Material2 : Rubber ModelName : 5 on 4.5 for 3,500 lbs trailer axle ModelNumber : QB-QC0010-1 NumberOfBoxes : 1 NumberOfItems : 16 OemEquivalentPartNumber : QB-QC0010-1 PartNumber : QB-QC0010-1 ProductDescription : 【FIT】For trailer idler hub 5 on 4-1/2" for 3,500 lbs trailer axle.Fits 1-1/16'' to 1-3/8" Trailer Axles 3500lb #84 Spindle. ProductSiteLaunchDate : 2008-10-15T17:00:00.000Z Size : 2.5" ID SpecificationMet : ISO 16949 Style : Modern SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TowingCapacityMaximum : 3500 pounds UnitCount : 2 UnspscCode : 26111500 WarrantyDescription : 6 months