King Engine Bearings MB5442MC0.5 Main Bearing Set Ford Mazda MZR Oversize - L3 0.50mm

The King Engine Bearings MB5442MC0.5 is a high-performance main bearing set designed specifically for Ford Duratec and Mazda L3/L3-VDT MZR engines. This 0.50mm oversize bearing set is ideal for rebuilds requiring machined crankshaft journals or engines with worn bearing surfaces.

Advanced MC Coating Technology:

This bearing set features King's innovative MC (nano-composite polymer) coating, designated as K-340. This advanced coating is applied over a strengthened aluminum alloy substrate and contains solid lubricants and ceramic additives. The MC coating is specifically engineered to handle the demands of modern engines including higher cylinder pressures, elevated temperatures, increased loads, and frequent start/stop conditions that create mixed lubrication scenarios.

Key Features:

• Nano-composite polymer coating for superior wear resistance and service life
• Bi-metal construction with steel backing and strengthened aluminum alloy
• 5-10 micron coating thickness with ceramic additives and solid lubricants
• 0.50mm oversize for machined crankshaft journals
• Precision matched shell tolerances to 0.0001 inches
• Enlarged and chamfered oil holes for improved lubrication
• Medium eccentricity for optimal load distribution
• Rigorous quality control throughout manufacturing process

Applications:

Compatible with Ford 2.0L, 2.3L, and 2.5L Duratec engines found in Focus, Fusion, Ranger, Escape, and EcoBoost applications, as well as Mazda MZR engines in Mazdaspeed 3, Mazda 3, Mazda 6, MX-5 Miata, and CX-7 models.

King Engine Bearings has been a trusted bearing specialist since 1960, producing precision bearings for automotive, racing, aviation, and marine applications. Every King bearing utilizes the highest quality materials and most advanced designs to ensure complete customer satisfaction.