Main Bearing Set +0.50mm Toyota GR Supra 3.0L B58 11711WAA10

Severe engine main bearing wear in the B58 platform is typically caused by extreme thermal stress or oil starvation during high-performance driving, leading to significant scoring on the crankshaft journals. When a crankshaft requires substantial machining to restore its structural integrity, standard or minor oversized bearings are insufficient. This +0.50mm (+0.020in) oversized main bearing set is engineered to provide the precise oil film clearance required for a heavily ground crankshaft, restoring factory-level oil pressure and rotational balance. Built with high-strength multi-layer alloys, these bearings ensure the engine's bottom end can handle the high torque demands of the GR Supra while preventing future metal-to-metal contact and catastrophic failure.