1.5L Aluminium Header Tank – Universal Coolant Expansion Reservoir

Custom configurations available on request

This 1.5L aluminium header tank is a fully pressurised cooling system component designed for motorsport, track-day and high-performance road applications. Installed as the highest fill and bleed point within the coolant circuit, it manages thermal expansion, promotes air separation and maintains stable system pressure under sustained load.

Please note: this item may currently be made to order. Typical dispatch time is around 5 working days, though stock availability is updated regularly.

This TIG welded aluminium header tank forms part of the primary cooling system. It is suitable for custom builds, kit cars and engine swap applications upgrading from plastic OEM coolant expansion tanks to a more durable aluminium solution.

Manufactured from aluminium the construction is engineered to withstand vibration, repeated heat cycles and high operating temperatures common in performance environments.

This version is supplied with a bulkhead mounting bracket as standard. A 4-point mounting bracket can be supplied instead upon request to suit different installation requirements.

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Specification

Length: 200mm (excluding fittings)

Diameter: 101mm (4 inch)

Capacity: 1.5 litres

Top port: 10 mm bleed / return

Bottom port: 19 mm outlet

Standard European-size CNC-machined filler neck (cap not included)

Build philosophy & quality assurance

All products are manufactured in low volume to allow proper control over fit-up, welding and finishing.

Built properly. Not quickly.