This MAHLE main bearing, part code 021 PL 21722 000, is engineered to meet stringent automotive standards. It plays a crucial role in supporting the engine's crankshaft, allowing it to rotate smoothly within the engine block. The precise manufacturing of this bearing ensures optimal oil film formation, which is essential for reducing friction and wear between the crankshaft journals and the bearing surfaces. This contributes significantly to the longevity and efficiency of your engine. Designed for a perfect fit and function, this MAHLE main bearing is a direct replacement for the original component, ensuring compatibility and ease of installation. Trust MAHLE for dependable engine components that deliver consistent performance.