The Bolt,flange,6x12 is the lowest priced item on this Oil Filter/water Pump schematic.
A sample from the products for the Oil Filter/water Pump include: Hose,water Inlet, Bolt,flange,6x12, Pipe,water Inlet, O-ring,18.3x2.3.
This OIL FILTER/WATER PUMP assembly utilises two Pipe,water Inlet(s) - the highest specified component.