NissanPartsDeal.com offers the wholesale prices for genuine 1989 Nissan Hardbody Pickup (D21) parts. Parts like Cylinder Block & Oil Pan are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.4L, 4 Cyl 2.5L Diesel, 6 Cyl 3.0L. Trim: Basic, DX, GST, SST, ST, STD.