wheel hub bearing unit: 1). Material: GCr15 2). Certificates: ISO/TS 16949 3). OEM service available For more details and price, feel ... assurance period is one year or 50,000 KM for AftersalesMarket. product quality assurance period is two years or ... and thirdgeneration wheel hub bearing units,they are suitable for various famouscars,such as Opel,Buick,Chevrolet,Ford,Cadillac,Pontiac,Dodge,Plymouth, ...