Crankshaft Main Bearing Set (0.50 mm / 0.20") for Nissan Pickup D21 SD23 / SD25 (1986-1988)

High-performance Crankshaft Main Bearing Set specifically engineered for Nissan Pickup D21 models equipped with SD23 (2.3L) and SD25 (2.5L) diesel engines manufactured between 1986 and 1988. These are 0.50 mm Oversize (Second Undersize) bearings, designed for engines where the crankshaft journals have been ground for the second time during an overhaul. Manufactured from premium multi-layer alloy to provide superior load-carrying capacity and exceptional fatigue resistance under heavy-duty conditions. Precision-made to meet or exceed OEM specifications, these bearings are essential for restoring oil pressure and ensuring the long-term structural integrity of the SD engine's bottom end.