King Engine Bearings MB3324AM0.75 Main Bearing Set Subaru Oversize - 1800cc 0.75mm

The King Engine Bearings MB3324AM0.75 is a main bearing set engineered for Subaru 1800cc engines from 1980 onward. This set is sized at 0.75mm oversize (as indicated by the AM0.75 suffix), making it ideal for engines that have undergone crankshaft grinding or reconditioning and require an oversized bearing to restore proper oil clearances and extend engine life.

King Engine Bearings is a globally recognized OEM and performance bearing manufacturer known for producing precision-engineered engine bearings to exacting tolerances. Their bearings are manufactured using high-quality tri-metal or bi-metal construction depending on application, delivering excellent fatigue resistance, conformability, and embeddability for reliable long-term performance.

Key Features:

• Oversized at 0.75mm over standard for use with reground crankshafts
• Full main bearing set for Subaru 1800cc engines (1980 and later)
• Precision-manufactured to OEM dimensional tolerances
• High-quality bearing alloy construction for durability and wear resistance
• Designed to maintain optimal oil film clearances for engine protection
• King's proprietary surface finish for improved oil retention and reduced break-in wear

This bearing set is the correct choice when rebuilding a Subaru 1800cc engine where the crankshaft has been machined 0.75mm undersize. Using the correct oversize bearing ensures proper running clearances, reduces the risk of bearing failure, and helps achieve a successful, long-lasting engine rebuild.