Heating and Cooling Radiators

Supermiata

Crossflow Radiator

$454.00

SKU: SPM-CF-RAD

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Supermiata Crossflow Radiator is a high-performance cooling system designed for the 90-05 MX5 Miata. It features a crossflow design that allows coolant to flow side-to-side, offering improved heat shedding compared to traditional downflow radiators. This radiator is constructed with a lightweight 31mm core and includes dual drain plugs, a high-pressure 20psi radiator cap, and a sacrificial anode to reduce corrosion.
Show original supplier description
The Supermiata Crossflow Radiator is engineered to provide superior cooling for the 1990-2005 MX5 Miata models. This radiator utilizes a crossflow design, where coolant travels horizontally through the core, allowing for longer heat dissipation time and more efficient cooling compared to standard downflow systems. The design also places the filler neck on the low-pressure side, preventing premature pressure release. Constructed with a lightweight, high-performance 31mm core, this radiator features a 'B tube' design with an internal divider for increased surface area and optimized cooling efficiency. It boasts a high fin density of 19.5 fins per inch (fpi) and a compact 6.5mm fin height, maximizing coolant-to-core contact. The radiator is designed to be the lightest Miata high-performance radiator available, weighing only 7.8 lbs. It comes equipped with dual drain plugs for easy maintenance, a high-pressure 20psi radiator cap to raise the system's boiling point, and a sacrificial anode to combat corrosion.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSupermiata
Part NumberSPM-CF-RAD
CategoryHeating and Cooling

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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