King Engine Bearings MB 534AM0.5 Crankshaft Main Bearing Set - 0.50mm Undersize Bi-Metal Aluminum

The King Engine Bearings MB 534AM0.5 is an OE-replacement crankshaft main bearing set in a 0.50mm undersize (0.020") configuration. Engineered with King's AM Series bi-metal aluminum construction, this set delivers reliable performance and long service life for passenger car engines operating under low to medium loads.

AM Series Material (K-783):

• Bi-metal aluminum construction — standard aluminum-based material equivalent to SAE-783, bonded to a steel backing for structural integrity
• 100% lead-free alloy — environmentally responsible and safe for use in rebuilt engines
• Superior embedability — absorbs macro-particle debris to reduce crankshaft journal scratching and bearing wear
• High conformability — adapts to minor crankshaft deflection and surface irregularities for consistent oil film retention

King Bull's Eye Tolerance™ Technology:

• Proprietary production process combining highly accurate machining, overplating, and computerized wall thickness monitoring
• Shell-to-shell thickness consistency exceeds standard industry tolerances, ensuring precise oil clearance in every set
• Tolerance control maintained to ±0.0001" for accurate fitment

Set Details:

• Quantity: 5 pairs (10 half-shells total)
• Undersize: 0.50mm (0.020")
• Material: Bi-Metal — Aluminum base (K-783), no overlay
• MPN: MB 534AM0.5

King Engine Bearings AM Series main bearings are the ideal choice for engine rebuilds requiring a reliable, cost-effective OE-equivalent replacement. The lead-free aluminum construction offers excellent corrosion resistance and long-term durability for street and marine applications.