CLASSIC MINI CYLINDER HEAD BYPASS HOSE ADAPTOR TUBE 12A2075 BMC 998 1275 3GH16
Classic Mini Cylinder Head Bypass Hose Adaptor
This is the longer type cylinder head adaptor tube which allows fitment of the bypass hose without removing the head. The shortened hose slides up the tube and then back down on the water pump tube. Frequently rusted on old heads and not even there on newer heads. These are 5/8″ x 16tpi ‘whitworth fine’ thread and if the thread in the head is badly corroded and you cannot find the correct original tap some owners have used 5/8″ x 18tpi unf thread and fitted 12H1405 tube originally used for inlet manifold servo take offs.