This ACDelco Professional water pump is a high-quality replacement part for your 1982-1988 Nissan Datsun 1.5L or 1.6L L4 engine. It is made of aluminum housing material and features a steel impeller for durability. The mounting style can be either screw-on or bolt-on, and it is belt-driven. It is a vintage part and has a manufacturer part number of 251-368, which replaces the superseded part number 12322033. The water pump is a manual type and has a patent part feature. It has interchangeable part numbers of 3291F2, AWP-601, AW9041, CP9041, DP1074, and FP1665. The OE/OEM part number is 2101001M01. This water pump is not a universal fitment and should only fit the specified make and model.