Clevite 77 is a brand known for its high-quality engine bearings, especially for performance and racing applications. They are a part of MAHLE Aftermarket, and their bearings are manufactured in the Atlantic, Iowa plant alongside a significant portion of heavy-duty OE engine bearings for North American manufacturers. Clevite 77 bearings are recognized for their durability, seizure resistance, and load capacity, making them a popular choice for engine builders.