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Sealed Power 4663MA Main Bearing Set
A-Series bi-metal aluminum alloy
Greater seizure resistance than tri-metal material
Reduces dramatically or eliminates bearing wear
Exacting tolerances
Meets or exceeds OEM specifications
Made with silicon to provide greater surface hardness
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today's modern engines.