Main Bearing Set OEM Nissan 240Z 260Z 280Z 280ZXNew genuine Nissan OEM main bearing set. These engine bearings will fit Datsun 240Z, 260Z, 280Z, and 280ZX, 1970 1983. The PT# 200 839 is a new production set of bearings. Bearings labelled "NOS" are New Old Stock bearings in vintage Nissan boxes. We have a limited supply of the NOS bearings and some of these may have some light corrosion on the non critical portions of the bearing from setting for years.