Material: grade steel and OEM NO.: 11247558881, 11247552063, 11247576717, 11247552064, 11247576718 Engine: N55B30A (3.0L L6 GAS) Compatible Models: 135i, 235i, 335i, 435i, 530i, 535i, 640i, 740i, X1, X3, X5, X6 Displacement: 3.0T Quantity: 1 set of Main & Con-rod Bearing Kit This STD 0.25 0.5 Main & Con-rod Bearing Kit is designed for engines with the N55B30A configuration.Constructed from grade steel and , the kit provides and resistance to wear under normal operating conditions.It is engineered specifically for the 3.0L inline-six engine platform used in various vehicle models from 2008 to 2018.The bearing set includes main and connecting rod bearings sized at standard, +0.25, and +0.50 millimeters, allowing for precise fitment during engine rebuilds.With direct OEM compatibility, this kit aligns with specifications to support engine.It is suitable for use in a range of performance and models, including sport coupes, sedans, and SUVs equipped with the N55B30 engine.Designed for straightforward installation, the kit integrates into the engine block and crankshaft assembly.Its manufacturing supports proper oil clearance and load distribution, contributing to consistent engine performance and longevity.This complete bearing solution helps maintain internal engine function after disassembly or overhaul.