SpecificationBolt Thread Pitch: M12*1.5Bolt Size: M12*1.5Bolt Pattern: 6 x 5 in.Bolt Circle Diameter: 5 in. / 127 mmWheel Pilot Diameter: 3.06 in. / 77.8 mmBrake Pilot Diameter: 3.11 in.Flange Offset: 1.85 in.Flange Diameter: 5.92 in.Flange Bolt Hole Quantity: 3Knuckle Bolt Hole Size: M12*1.75Fitment Type: Direct ReplacementC-Clip Included: NoHub Pilot Diameter: 3.29 in.Hardware Included: NoFlange Shape: TriangularWheel Stud Quantity: 6Type: Ball BearingABS Sensor Included: YesAnti Lock Braking System: YesAnti Lock Braking System Type: CableBearing Generation: G3Finish: Polished,Rust ProtectedOE Number: 513188Placement on Vehicle: Front Wheel Hub BearingsUnit: 2Package Include: 2*Front Wheel Hub BearingsLugs Included: YesNumber of Splines: 27Item Size(LengthxWidthxHeight:inch): 12.2*6.69*5.91Item Weight(lbs): 7.34Package Dimensions(LengthxWidthxHeight:inch): 12.2*6.69*5.91Package Weight(lbs): 9.55Manufacturer Warranty: 1 Year Warranty for Quality ProblemsCondition: NewKnuckle Bolt Circle Diameter: 4.75 in. / 120.65 mm Fitment2002-2004 Oldsmobile Bravada2004-2007 Buick Rainier2004-2005 GMC Envoy XUV2002-2006 GMC Envoy XL2002-2009 GMC Envoy2003-2008 Isuzu Ascender2005-2009 Saab 9-7x2003-2006 Chevrolet SSR2002-2006 Chevrolet Trailblazer EXT2002-2009 Chevrolet Trailblazer Features & Benefits1.Material & Qaunlity - Wheel Hub Bearing Assembly is specially quality-tested and engineered to the highest of manufacturing standards, meet or exceed OE quality. The induction-hardened raceway provides superior load-bearing capacities and service life. Worry-free of abnormal noises or faulty connection.2.Main Function - Hub bearings can fix the tire and support the gravity of the whole body, provides precise guidance for the rotation of the hub. wheel hub bearing enables the wheels and attached components to rotate smoothly and keeps the wheel attached to the car. High quality wheel hub assembly make you enjoy your vehicle in a safe and smooth3.Premium Features - Our wheel bearing assemblies manufactured by high-quality materials for ensuring precisely matches, durability, reliability and premium performance. The high-quality seal design provides superior anti-pollution protection, ensuring that the hub bearings are clean, long lasting and minimizing noise and vibration. Wheel bolts with protective coating that helps prevent rust and corrosion and makes it easier to disassemble and properly twist the wheel nuts4.Easy To Installation - Assembling has excellent performance, precise overall structure, easy and quick installation5.Corrosion Protection - Wheel hub bolts with protective coating, not easy to rust and corrode, and easier to tighten the wheel nuts. Better seal design, which lasts and minimizes noise and vibration. Each item is factory quality inspected according to OEM production standards and meets the highest standards.6.Keeps Water And Dirt Out -- Quad lip seal design inhibits damage by keeping moisture and other contaminants out7.Service & Warranty - I-year warranty for all Wheel Hub Bearing Assembly, well-packaged, any problems please feel free to contact us first, let's make it right! Note: Only sold in the USA (Excluding Hawaii, Alaska, Puerto Rico, Guam, Virgin Islands, American Samoa, Northern Mariana Islands, Palau, Federated States of Micronesia, Marshall Islands, AA, AE, AP).Warranty: If there's any problem, please feel free to contact us with your car's VIN # and the pictures or videos to show the problem within 30 days, well try our best to solve it and make you satisfied. After using, the items warranty is 1 year, only for replacement and no refund. Hope you know.