Clevite Nissan MR18DE / MR20DE 2.0L L4 Main Bearing Set

These Clevite main bearings are built to a 0.025mm undersize, meaning they are designed for crankshafts that have been machined down by that amount during an engine rebuild. They are specifically made for Nissan MR18DE and MR20DE 2.0L L4 engines, commonly found in models like the Nissan Cube, Sentra, Versa, and NV200. Proper main bearing clearance is critical for maintaining oil pressure and allowing the crankshaft to spin freely and smoothly within the engine block.

Clevite uses a tri-metal construction for these bearings, which is a well-known standard in engine rebuilding. This construction offers a good balance of strength and conformability, helping the bearing to adapt to the crankshaft surface while providing solid support. The 0.025mm undersize specification is important; if your crankshaft has not been machined to this size, these bearings will not provide the correct clearance, potentially leading to oil pressure issues or premature wear. Always confirm your crankshaft's specifications before ordering replacement bearings.