Upper Radiator Tank for Nissan NV350 Vans ?

Keep your engine cool and protected with a high-quality upper header tank designed for tough, everyday duty. This component guides hot coolant from the engine into the radiator, stabilizes pressure, and provides clean flow paths for the top hose and air bleeding. Built to OE geometry, it seals to the radiator core with the original gasket and crimp line, ensuring leak-free performance and long life.

Why this part is needed ❄️

The cooling system depends on a rigid, heat-resistant top reservoir to move coolant and maintain pressure. Proper pressure raises boiling point, prevents hotspots, and keeps your van running efficiently even in traffic or heavy load.

How it works ?

Coolant exits the cylinder head, enters the upper tank, spreads across internal channels, and flows through the core tubes to shed heat. The tank’s ports keep hoses aligned, and its neck/bleeder (where fitted) helps purge air for stable temperatures.

What happens if it’s broken ⚠️

Cracks, warped crimps, or brittle plastic cause coolant leaks, low pressure, overheating, heater loss, and possible head gasket damage. Replace at first signs of seepage, stress marks, or swelling for safe, reliable cooling.

Compatibility ✅

• Nv350 Urvan
• Nv350 Caravan