King Engine Bearings MB5739SI0.75 Main Bearing Set Subaru Oversize - EJ20/EJ22/EJ25 002

The King Engine Bearings MB5739SI0.75 is a precision-engineered main bearing set designed specifically for Subaru EJ20, EJ22, and EJ25 engines. This set features a +.002" (0.002 inch) oversize housing bore dimension, making it ideal for engine rebuilds where the crankcase has been line-bored or align-honed to accommodate wear or damage.

Key Features:

• Precision oversize bearings with +.002" housing bore for line-bored engine blocks
• Complete main bearing set for Subaru EJ-series engines
• King's proprietary pMax Black™ tri-metal construction with advanced polymer coating
• Enhanced oil retention and reduced friction for improved performance
• Superior fatigue resistance and embedability for longer engine life
• Manufactured to OE specifications with tighter tolerances

King Engine Bearings are a preferred choice among engine builders and performance enthusiasts for their exceptional quality and durability. The SI (Standard Internal diameter) designation indicates this set maintains standard crankshaft journal sizing while providing the oversize outer diameter needed for machined engine blocks. This bearing set is essential for professional engine rebuilds and high-performance applications where precision clearances are critical.