The most expensive part in this assembly is the Oil Cooler Assy.
With all the components that make up the YFM350FWW 1989 BIG BEAR OIL PUMP assembly. The Washer, Plate 3411117500 is the most frequently specified with four applications.
Some items from this specific schematic: Spring, Compression (3y1), Screw Pan Head, Oil Cooler Assy, Washer (2h9).