King Engine Bearings Datsun J15/(Size +0.25mm) Main Bearing Set

King Engine Bearings is well-known for making solid engine components. If you're rebuilding the bottom end of your Datsun J15 engine, this main bearing set is a key part of getting it running right. These bearings are made with a bimetal aluminum base, which is a common and effective material for handling the loads inside your engine.

This set is specifically sized at 0.25mm undersize, meaning it's meant for crankshafts that have been machined down by that amount during an engine rebuild. Using the correct size bearing is crucial for maintaining proper oil clearance, which is essential for the longevity of your engine. King's focus on reliable engine parts means you can trust these to perform well in your J15.