Elevate the performance and reliability of your Mack E-TECH engine with the Fortpro Main Bearing Kit STD. Crafted with high-quality alloy materials and engineered to precise standards, this bearing kit ensures smooth crankshaft operation, reduced friction, and superior heat dissipation. As a direct replacement for OEM 57GC387, it guarantees a perfect fit and exceptional performance, extending the life of your engine and reducing maintenance needs. Trust Fortpro for unmatched quality and durability.








