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Goodwin

Triple Pass Aluminum Radiator 42mm

$599.00 $549.00 Save $50.00

SKU: 61-3390

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INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Goodwin Racing 61-3390 is a triple-pass maximum performance radiator designed for the Mazda NC MX-5 Miata. This 42mm thick version offers increased cooling capacity for high-demand applications, including turbocharged vehicles and racing.

It utilizes CSF's "B-Tube" technology and louvered fins for enhanced efficiency and is constructed from military-grade aluminum. The radiator mounts in factory locations and works with the factory fan, though some trimming of surrounding plastics may be required for installation.
Show original supplier description
The Goodwin Racing 61-3390 is a high-performance, 42mm thick triple-pass radiator engineered for the Mazda NC MX-5 Miata (2006-2015 with 2.0L L4 manual transmission). Building on the success of their 32mm version, this thicker 42mm core increases cooling capacity to the maximum achievable within the NC chassis. It features CSF's "B-Tube" technology and high-efficiency louvered fins, optimizing surface area for dramatically higher cooling efficiency. The construction utilizes military-grade (JIS 3003 spec minimum) aluminum for tubes, fins, and endtanks, and includes a racing-style all-aluminum drain plug. While designed to work with the factory fan and mount in factory locations, installation of this 42mm radiator requires trimming of surrounding plastics, including the radiator fan shroud. It offers a solution to the complexities and high costs associated with custom multi-pass racing radiators that often require custom brackets and are not compatible with factory fans. It has not been confirmed to fit with automatic transmissions. The radiator is compatible with the 2006-2015 Mazda NC MX-5 Miata models equipped with the 2.0L L4 engine and manual transmission.

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.

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Specifications

BrandGoodwin
Part Number61-3390
CategoryHeating and Cooling
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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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