Aluminium Header Tanks

Designed to help separate trapped air and maintain stable coolant pressure for reliable cooling performance. Our tanks can be customised to suit your application, including outlet sizes, positions and configurations.

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Aluminium Coolant Swirl Pots

Engineered to improve air separation, aid system bleeding, and stabilise cooling performance. Custom configurations are available to suit individual cooling-system requirements.

Aluminium Fuel Swirl Pots

Designed to prevent fuel starvation under hard cornering and maintain consistent fuel delivery on track or road. Available in a range of configurations, with custom sizes, fittings and outlet positions available to suit your fuel system.

Oil Catch Cans & Separators

Engineered to separate oil vapour and blow-by gases, helping to keep the intake system clean and efficient. Custom configurations are available to suit individual installation and engine requirements.

Aluminium Fuel Tanks

Hand-built fuel tanks for motorsport and custom builds, TIG-welded in the UK. Custom sizes, capacities and configurations are available to suit individual applications.

Hydraulic Reservoirs

TIG-welded aluminium hydraulic reservoirs for brake, clutch and power steering systems. Engineered for reliability, performance and a clean engine-bay finish.

Trusted by Enthusiasts

  • 1stcentury (Subaru Owner USA)

    "I ordered a new Subaru coolant reservoir online and I'm really pleased with the experience. The item arrived timely, it was packaged well, the seller's communication was great, and the quality of the tank looks awesome! Even shipped to the US, it's a similar price as mass-manufactured tanks but looks far better."

  • clancrusader7 (eBay customer)

    "The quality of the header tank I have just received is excellent. I had a good conversation with the seller concerning some modifications I required and he carried then out to the letter. Would not hesitate to use again."

  • Toby Cox (via Google Reviews)

    "Great quality tank, great communication and will definitely be buying from The Alloy Shed again. If I was closer, I’d be getting a load of other work done too. Big thumbs up from me 👍"

  • K P (via Google Reviews)

    "It was an absolute pleasure purchasing my expansion tank from The Alloy shed he made it to my exact measurements and kept in contact with me throughout the process to make sure it was exactly what I wanted I would definitely buy from The Alloy Shed again I highly recommend him"

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The Alloy Shed Journal

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  • Custom Aluminium Header Tanks – Made to Suit Your Application

    Custom Aluminium Header Tanks – Made to Suit Yo...

    At The Alloy Shed, many of our aluminium header tanks can be customised to suit your application. From different inlet and outlet sizes to fitting positions, mounting brackets, filler necks...

    Custom Aluminium Header Tanks – Made to Suit Yo...

    At The Alloy Shed, many of our aluminium header tanks can be customised to suit your application. From different inlet and outlet sizes to fitting positions, mounting brackets, filler necks...

  • How We Developed Our Renault Clio MK2 Aluminium Header Tank

    How We Developed Our Renault Clio MK2 Aluminium...

    See how we developed our Renault Clio MK2 aluminium header tank, from the original design and mounting points to a durable, hand-fabricated TIG-welded replacement.

    How We Developed Our Renault Clio MK2 Aluminium...

    See how we developed our Renault Clio MK2 aluminium header tank, from the original design and mounting points to a durable, hand-fabricated TIG-welded replacement.

  • Engineering That Evolves

    Engineering That Evolves

    Every product at The Alloy Shed is built on a philosophy of continuous refinement. Through real-world feedback, practical engineering and meticulous attention to detail, our designs evolve with every revision...

    Engineering That Evolves

    Every product at The Alloy Shed is built on a philosophy of continuous refinement. Through real-world feedback, practical engineering and meticulous attention to detail, our designs evolve with every revision...

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