Brand ?ZonCar Interchange Part Number 521000 521001 WE61585 721000 BR930259K HA590259K 1L24-1W002AA WB21000 Material Steel Lugs 5 Bolts Wheel Bolt (Lug) Thread M12 FeaturesDirect Fit Replacement Highest Quality Materials Precision EngineeredStuds already installed Fitment 2002-2010 Ford Explorer 4-door models 2003-2005 Lincoln Aviator all models 2002-2010Mercury Mountaineer all models 2007-2010Ford Explorer sport trac all modelsAbout ZonCar® ZonCar® an extensive coverage of bearings for a large range of automotive and heavy-duty wheel end applications. Our Products are manufactured in ISO 9000/9001/9002 certified facilities. Zoncar products delivers the look, feel, fit and performance of OE. Manufactured with Internal bearing seals that are specifically designed to combat all types of road conditions to keep debris out and keep the bearing turning. With am OE design, simple installation and and long life as a guarantee.