King Engine Bearings MB5278XP.026 Main Bearing Set Ford Oversize - 2.3L 140ci L4 026

The King Engine Bearings MB5278XP.026 is a precision-engineered main bearing set designed specifically for Ford 2.3-liter (140 cubic inch) inline four-cylinder engines. This oversize bearing set features a +.026" dimension, making it ideal for engines that have been machined for crankshaft journal repair or performance builds requiring oversized bearings.

Key Features:

• Application-specific design for Ford 2.3L/140ci L4 engines
• +.026" oversize for machined crankshafts
• King XP-Series performance construction
• High-strength steel backing for durability
• Advanced tri-metal bearing material for superior wear resistance
• Precision manufacturing ensures proper oil clearances
• Complete main bearing set for full crankshaft support

King Engine Bearings is renowned for producing high-quality performance bearings used in racing and high-performance street applications. The XP-Series bearings feature enhanced materials and construction methods to withstand the demands of modified engines while maintaining proper lubrication and longevity. This main bearing set is essential for engine rebuilds where the crankshaft has been ground oversize or for performance applications requiring upgraded bearing technology.