Carrying on a tradition of durability and dependability, Clevite BiMetal (aluminum) engine bearings feature 100% lead-free aluminum silicon. Engineered with 60% more silicon than comparable competitive replacements, they provide better conditioning of journal surfaces. This results in greater seizure and wear resistance. PartNumber : cleCB1017A25MM(5) Description : Engine Connecting Rod Bearing Set 1980-1983 Audi 4000 Base L5.2144cc Engine Components::Bearings 1982-1983 Audi 4000 GT L5.2144cc Engine Components::Bearings 1982-1983 Audi 4000 S L5.2144cc Engine Components::Bearings 1978-1980 Audi 5000 Base L5.2144cc Engine Components::Bearings 1979-1980 Audi 5000 S L5.2144cc Engine Components::Bearings 1981-1983 Audi 5000 S Turbo L5.2144cc Engine Components::Bearings 1981-1983 Audi Coupe Base L5.2144cc Engine Components::Bearings 1983 Audi Quattro Base L5.2144cc Engine Components::Bearings