Mazda 1990-1997 Miata Heater Core

HC 90-97 Miata stock hoses

$329.00

If you are searching for a copper and brass heater core to replace the leaking aluminum one you just replaced in your Mazda Miata then you are not alone and you are in luck. We make our own cores and fabricate our own tanks so, naturally, we get asked to build custom heater cores or "small radiators."

A customer mentioned that he preferred two short hoses connections for easier installation rather than the one short and one long. Indicate this preference when ordering this heater core.

Our build queue varies.

Present Lead times.

Made in the USA

We make to order. Please allow adequate time for us to build.

Build time estimates [April 23, 2026]

Model Ts Brass 18 weeks

Model Ts Black 13 weeks

Model As 17 weeks

Heater cores ~11 weeks

1928-34 Ford Hot rods 2-3 weeks

Common street rods ~12-15 weeks

Tricky customs & complicated restorations ~20-25 weeks

We appreciate your patience as we continue to recruit and train new fabricators and manage the labor shortfall our country has been experiencing.