King Engine Bearings MB5284SI0.25 Main Bearing Set 0.25mm Oversized for Chrysler Jeep 4.7L

The King Engine Bearings MB5284SI0.25 is a precision-engineered main bearing set designed specifically for Chrysler and Jeep 287 cubic inch (4.7L) engines. This 0.25mm oversized bearing set is ideal for engines that have had their crankshaft journals machined or reconditioned during rebuild operations.

Construction and Material:

• Bi-metal construction with silicon aluminum alloy backing
• Aluminum-based material fortified with 2.5-3% silicon content for enhanced strength
• Engineered for medium-load applications and nodular cast iron crankshafts
• Precision bore diameter 0.25mm (.010") larger than standard for use with undersize crankshaft journals

Key Features:

• OE-quality construction meets or exceeds original equipment specifications
• Silicon-enhanced alloy provides improved load-bearing capacity and wear resistance
• Optimized for use with nodular cast iron crankshafts commonly found in these engines
• Complete main bearing set for full engine rebuild applications

King Engine Bearings are manufactured to strict tolerances using advanced metallurgy, making them a trusted choice for professional engine builders and DIY rebuilders. This bearing set provides reliable performance and durability for Chrysler and Jeep 4.7L V8 engines found in various models from the late 1990s through the 2000s.