King Engine Bearings Main Bearing Set for Mercedes Benz M103 M104 OM603 Bi-Me...

King Engine Bearings Main Bearing Set for Mercedes Benz M103 / M104 / OM603 Premium bi-metal aluminum main bearings engineered to meet or exceed OEM specifications for Mercedes-Benz M103, M104 and OM603 engines. Designed for durability, precision fitment, and superior protection under high load and temperature conditions. Fitment: Direct replacement for M103, M104 and OM603 crankshaft mains. Material: Bi-metal aluminum alloy for optimal wear resistance and conformability. Performance: Improved fatigue strength, excellent oil film retention and consistent clearances for reliable engine life. Quality: Manufactured to tight tolerances, inspected for surface finish and roundness to ensure smooth crank operation. Includes: Complete main bearing set for full crankshaft installation. Ideal for routine rebuilds, performance builds or preventive maintenance, King Engine Bearings deliver the precision and longevity Mercedes-Benz engines demand. Restore proper oil pressure, reduce wear, and extend engine life with this engineered main bearing set.