King Engine Bearings MB4569MC0.75 Main Bearing Set Ford EcoBoost Oversize - 3.5L V6 0.030

The King Engine Bearings MB4569MC0.75 is a precision-engineered main bearing set designed specifically for Ford EcoBoost 3.5L V6 engines requiring +0.75mm (+0.030") oversize outer diameter for housing bore repair work. This bearing set is part of King's advanced MC Series, which incorporates cutting-edge materials and coatings to meet the demands of modern turbocharged engines.

Advanced MC Series Construction:

• Bi-metal structure with high-strength steel backing and strengthened aluminum alloy bearing surface
• Factory-applied K-340 nano-composite polymer coating for superior anti-friction and wear resistance properties
• Lead-free design optimized for start-stop and hybrid engine applications with frequent metal-to-metal contact
• Coating adds no additional thickness, maintaining precise bearing wall tolerances
• +0.030" oversize outer diameter designed for housing bore repair by line honing

Application:

• Ford EcoBoost 3.5L V6 twin-turbocharged engines (various applications including F-150, Explorer, Expedition, Lincoln models)
• Includes 4 pairs of main bearings for complete crankshaft support
• Designed for engines requiring housing bore machining due to wear or damage

King Engine Bearings maintains industry-leading "Bull's Eye" bearing wall thickness tolerances of ±0.0001", far tighter than competing manufacturers. Every bearing undergoes rigorous quality control throughout the manufacturing process to ensure only the highest quality bearings reach your engine build. Whether you're rebuilding a high-performance F-150, restoring proper clearances in a worn engine block, or building a reliable daily driver, King's MC Series bearings deliver the precision, durability, and wear resistance required for long-lasting performance.