King Engine Bearings MB 601AM0.5 OE Replacement Main Bearing Set 0.5mm Undersize

The King Engine Bearings MB 601AM0.5 is an OE-replacement crankshaft main bearing set designed for Audi engines. This set includes 6 pairs of bi-metal aluminum bearings and is sized at 0.5mm undersize, making it ideal for engines that have had their crankshaft journals reground to the 0.5mm undersize specification.

Part of King's industry-trusted AM Series, this main bearing set is constructed using King's standard aluminum-based bi-metal material — the softest bi-metal in King's lineup — engineered for passenger car engines operating under low to medium loads. The material is equivalent to SAE-783 specification and is completely lead-free, making it an environmentally responsible and user-safe choice for engine rebuilding.

Key Features:

• OE-replacement bi-metal main bearing set — 6 pairs included
• Aluminum-based bi-metal construction (AM Series), equivalent to SAE-783
• Lead-free and environmentally safe composite material
• Sized at 0.5mm undersize for reground crankshaft journals
• Superior embedability for improved macro-particle tolerance and crankshaft journal protection
• Precision tolerance control for consistent oil clearance and stable hydrodynamic lubrication
• Well-suited for low to medium load passenger car engines

King Engine Bearings has been a specialist manufacturer of engine bearings since 1960, offering a broad range of precision bearings for automotive, light truck, marine, and other engine applications. The MB 601AM series is available in multiple sizes including Standard, 0.25mm, 0.5mm, 0.75mm, 1.0mm, and 1.5mm undersize to accommodate various crankshaft grinding specifications.