King Engine Bearings MB5641SI MAIN BEARING SET

The King Engine Bearings MB5641SI is a precision-engineered main bearing set designed for high-performance and racing applications. King Engine Bearings are manufactured using advanced tri-metal technology, featuring a steel backing, copper-lead intermediate layer, and a proprietary polymer coating that provides exceptional wear resistance and load capacity.

Key Features:

• Tri-metal construction with steel backing for maximum strength
• Advanced polymer coating reduces friction and prevents scoring
• Precision-machined to tight tolerances for optimal oil clearance
• High crush design ensures proper retention in the bearing saddle
• Engineered for high RPM and heavy load conditions
• SI designation indicates standard size with increased crush

King Engine Bearings are trusted by professional engine builders and racers worldwide for their consistent quality and durability. Each bearing set is manufactured to exacting specifications to ensure proper fit and reliable performance in demanding applications.