King Engine Bearings MB5285AM0.75 Main Bearing Set Suzuki Oversize - J18K J20A 0.75mm

The King Engine Bearings MB5285AM0.75 is a complete main bearing set engineered for Suzuki J18K and J20A four-cylinder engines. This set is sized at 0.75mm oversize, making it the correct choice for engine rebuilds where the crankshaft main journals have been machined undersize to restore proper geometry and surface finish.

King Engine Bearings manufactures this set using their proprietary tri-metal bearing construction, combining a steel backing, copper-lead or aluminum alloy intermediate layer, and a precision-applied overlay for superior wear resistance, conformability, and fatigue strength. The result is a bearing designed to meet or exceed OEM specifications in performance and longevity.

Key Features:

• Direct fitment for Suzuki J18K and J20A engines
• 0.75mm oversize (0.030") for use with reground crankshafts
• Tri-metal construction for enhanced durability and load capacity
• Precision machined to tight tolerances for proper oil clearance
• High-quality overlay provides excellent break-in characteristics
• Electroplated or sputter-coated surface for improved fatigue resistance
• Full main bearing set — includes all main journal bearings required for complete engine assembly
• Manufactured to meet or exceed OEM replacement standards

King Engine Bearings is a globally recognized manufacturer supplying OEM and aftermarket engine components. The MB5285AM0.75 is the correct specification for engine builders performing a standard 0.75mm crank grind on the Suzuki J-series inline-four, commonly found in Suzuki and GM/Chevrolet vehicles. Always verify crankshaft journal measurements before selecting bearing size.