King Engine Bearings MB5226AM1.0 Main Bearing Set Mazda Oversize - 626 F8 1.0mm

The King Engine Bearings MB5226AM1.0 is a complete main bearing set engineered for the Mazda 626 equipped with the F8 engine. This set carries a 1.0mm oversize designation, making it the correct choice for engines that have undergone crankshaft grinding and require an oversized bearing to restore proper oil clearances and crankshaft fit.

King Engine Bearings is a globally recognized OE and aftermarket supplier known for precision manufacturing, tight tolerances, and advanced bearing materials. Their main bearing sets are produced to meet or exceed original equipment specifications, ensuring reliable performance in rebuilt and reconditioned engines.

Key Features:

• Complete main bearing set for the Mazda 626 F8 engine
• 1.0mm oversize — designed for reground crankshafts
• Precision-engineered to strict dimensional tolerances for consistent oil film and load distribution
• Multi-layer construction with high-strength steel backing for durability
• Advanced bearing material for improved wear resistance and conformability
• Maintains proper oil clearance to support crankshaft lubrication and longevity
• Manufactured to OE standards — suitable for professional engine rebuilds

Engineered for engine rebuilders and performance shops, the MB5226AM1.0 restores critical main journal clearances in the Mazda F8 engine, helping ensure long-lasting reliability after a crankshaft regrind. Each bearing half is individually packaged and clearly marked for straightforward installation.