Built to suit your build.

When off-the-shelf doesn’t quite cut it, we offer custom radiator solutions tailored to your exact requirements. Whether you need minor modifications or a completely bespoke unit, our team can design and build a system that fits correctly and performs reliably.

All custom radiators & shrouds are manufactured from aluminium for optimal cooling efficiency, strength, and weight.

Fully Custom Radiator

Best for: race cars, one-off builds, older or out-of-production vehicles where no off-the-shelf option exists.

When nothing fits, we build it from scratch. These are fully bespoke radiators engineered for exact fitment, correct hose routing, and a high-level finish — designed to drop into your setup without compromise.

Features:

• Made in New Zealand.
• Custom-spec core manufactured to suit your requirements.
• Fully fabricated tanks.
• Inlet/outlet placement tailored to your engine layout.
• Mounts built to suit chassis and/or fan shroud setup.
• Precision fitment for tight or complex engine bays.

Finish Options:

• Raw alloy.
• High machine polish.
• Powder coated.

Estimate: $3000+

ETA: 4–8 weeks.

Custom Tanks + Core

Best for: performance builds, race cars, and one-off projects needing custom fitment without the cost of a full bespoke core.

This option delivers the benefits of a custom radiator with a faster turnaround and more budget-friendly price point. We utilise proven Fenix radiator cores stocked in NZ, then fabricate tanks and fittings to suit your exact setup.

Features


• Made in New Zealand.
• Genuine Fenix core matched to your cooling needs.
• Fully custom fabricated tanks.
• Inlet/outlet placement tailored to your engine layout.
• Mounts built to suit chassis and/or fan shroud setup.
• Precision fitment for modified or tight engine bays

Finish Options

• Raw alloy.
• High machine polish.
• Powder coated.

Estimate: $2000+

ETA: 2–4 weeks

Modified Radiator

Best for: builds where a stocked radiator is close to correct but needs a few changes to suit your setup.

This option is ideal when one of our in-stock radiators is already a strong match and only requires minor fabrication work. We modify proven Fenix units to suit your layout, saving time and cost compared to full custom fabrication.

Features

• Fabrication carried out in New Zealand.
• Uses stocked Fenix radiators.
• Relocate or alter hose outlets.
• Add sensor ports.
• Additional mounting tabs or brackets.

Finish Options

• Raw alloy.
• High machine polish.
• Powder coated.

Estimate: Cost of radiator + modifications (quoted to spec).

ETA: 3 weeks.

Optional Add-ons

We offer supporting fabrication services to customise your cooling components so they suit your exact vehicle and build requirements — including modifications not typically available off-the-shelf.

Modified Radiators

Up to 3 weeks.

Custom Tanks + Core

2–4 weeks.

Fully Custom Radiator

Upwards of 8 weeks.

What we need from you

Providing accurate info ensures correct fitment and faster quoting.

  • Vehicle details

    • Make / Model / Year.
    • Engine + swap info (if applicable).
    • Intended use (street, drift, track, towing etc.)

  • Fitment details

    • Space available or dimensions.
    • Mounting locations.
    • Hose sizes + positions.
    • Accompanying photographs.

  • Modified Radiator

    • Brand + model.
    • Part number (if known).
    • Required changes.

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Do you ship custom radiators overseas?

Custom radiator builds are currently limited to domestic orders only.

Can you help design what I need?

Yes — if you’re unsure what solution is best, we can recommend one based on your setup and usage.

Where can I read warranty info?

See our Returns & Warranty pages for full coverage details.

Unsure What You Need?

Send us your setup details and we’ll recommend the best solution.