King Engine Bearings MB4549SI0.5 Main Bearing Set Ford EcoBoost - 3.5L V6

The King Engine Bearings MB4549SI0.5 is a precision-engineered main bearing set designed specifically for Ford EcoBoost 3.5L V6 engines. This performance-grade bearing set provides exceptional durability and reliability for high-performance and demanding applications.

Key Features:

• Bimetal construction with aluminum silicon base alloy for superior strength and heat resistance
• 0.5mm oversize for precision machining and engine rebuilding applications
• Complete main bearing set for all crankshaft positions
• Engineered to OEM specifications with enhanced performance characteristics
• Advanced bearing design reduces friction and improves oil clearance control
• Ideal for engine rebuilds, performance upgrades, and high-mileage restoration

King Engine Bearings are manufactured to exacting tolerances using advanced metallurgy and quality control processes. The aluminum silicon base material provides excellent load-bearing capacity, thermal stability, and resistance to fatigue, making this bearing set an excellent choice for both street and performance applications. The 0.5mm oversize allows machinists to restore proper clearances in engines with worn crankshaft journals.