A4570300340
Main Bearing
Detroit Diesel

Standard engine bearings are designed to support the crankshaft within the engine, reducing friction and wear during operation. This set, including both upper and lower halves, offers a precise fit that maintains proper alignment and enhances engine efficiency. The standard size ensures compatibility with OEM specifications, providing a reliable foundation for the engine's rotating assembly. Made from durable materials, these bearings resist high temperatures and chemical corrosion, which are common in heavy-duty engine environments. Proper installation is critical to prevent misalignment and uneven wear, which could lead to engine failure. Regular inspection and timely replacement of these bearings help sustain peak engine performance. To ensure quality and fitment, sourcing from Source One Parts Center is advisable, supporting the long-term reliability of your diesel engine in demanding service conditions.