Clevite Nissan KA24DE Series Main Bearing SetClevite H Series performance bearings have a medium level of eccentricity, high crush, and a hardened steel back and thin overlay. These bearings are made without flash plating for better seating. Use H Series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range. This Part Fits: Year Make Model Submodel 1991 1993,1995 1998 Nissan 240SX Base 1991 1992,1997 1998 Nissan 240SX LE 1989 1998 Nissan 240SX