King Engine Bearings MB5586AM0.25 Main Bearing Set Oversize - 0.25mm

The King Engine Bearings MB5586AM0.25 is a +0.25mm oversize crankshaft main bearing set engineered for the Isuzu 4ZE1 SOHC 8-valve engine. Designed as a precision replacement for engines that have undergone a crankshaft regrind, these bearings restore proper oil clearances and crankshaft support to factory-level tolerances.

Material Construction:

• Bi-Metal Aluminum Construction — aluminum-based material equivalent to SAE-783 specification
• Well-suited for low to medium load engine applications
• Aluminum alloy overlay provides excellent conformability and embeddability
• Steel backing for dimensional stability and strength under load

King Engine Bearings Features:

• Manufactured to tight dimensional tolerances for precise oil clearance control
• Consistent wall thickness for proper load distribution across the bearing surface
• High-quality steel backing ensures a secure, accurate fit in the bearing housing
• Engineered for reliable performance in street and light-duty engine rebuilds

Part Details:

• MPN: MB5586AM0.25
• Oversize: +0.25mm
• Engine: Isuzu 4ZE1 SOHC 8V (2.6L 4-cylinder)
• Bearing Type: Crankshaft Main Bearing Set
• Material: Bi-Metal — Aluminum (SAE-783 equivalent)

King Engine Bearings has specialized exclusively in engine bearings since 1960, offering a comprehensive range of precision bearings for automotive, light-duty truck, and other internal combustion engine applications. The MB5586AM0.25 is an ideal solution for engine rebuilds requiring an undersize crankshaft grind.