An aluminium weld-on radiator neck with a 32mm outlet, welded into a radiator end tank, header tank or custom coolant pipe to create a hose connection exactly where you need one. Fabricating a cooling system around a swapped engine almost always means the factory outlet positions are wrong, and rather than compromising with a maze of silicone bends, welding in a neck at the correct angle gives a short, direct hose run. The 32mm size suits smaller coolant circuits, heater feeds and overflow or header tank connections. Weld it in with the tank prepared and clean, and finish with a standard hose clamp. A 40mm version is available where a larger bore is needed.