King Engine Bearings Mercedes Benz M 272.911 / M 272.920 (Size 0.25) Crankshaft Main Bearing Set

This is a King Engine Bearings crankshaft main bearing set, specifically sized at 0.25mm undersize for Mercedes Benz M 272.911 and M 272.920 engines. Main bearings are crucial components that support the crankshaft within the engine block, allowing it to rotate smoothly while handling immense forces. When rebuilding or repairing an engine, especially if the crankshaft has been machined undersize to correct wear or damage, using the correct size bearings is essential for proper oil clearance and engine longevity.

King Engine Bearings are known for their well-built construction. This set is designed to meet the demands of engine rebuilding, ensuring that your crankshaft has the proper support it needs. The 0.25mm undersize specification means these bearings are intended for use when the crankshaft journals have been ground down by 0.25mm from their original size. This precise sizing is critical for establishing the correct oil film thickness between the bearing and the crankshaft, which is vital for lubrication and preventing metal-to-metal contact.

When installing these bearings, always refer to the manufacturer's service manual for the correct torque specifications and assembly procedures. Ensuring proper oil clearance is key to the performance and durability of your engine rebuild.