A straight, reinforced rubber bypass hose from the water pump to cylinder head, as used in original applications. May have to be trimmed to shorten if you have a replacement 12A2075 bypass fitting in the head.
For installations where the head or water pump have been removed. We recommend replacing this when the water pump or head gasket are changed, it is a cheap insurance. This is much stronger then the soft rubber collapsible hose designed for fitting while the head is still on the block.