---
product_id: 259421742
title: "Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997"
brand: "mishimoto"
price: "$1468"
currency: NZD
in_stock: true
reviews_count: 5
category: "Mishimoto"
url: https://www.desertcart.nz/products/259421742-mishimoto-mmrad-mia-90-performance-aluminum-radiator-compatible-with-mazda
store_origin: NZ
region: New Zealand
---

# TIG-welded with lifetime warranty Direct OEM fit, no mods needed Dual-core aluminum for max cooling Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997

**Brand:** mishimoto
**Price:** $1468
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your Miata cool, calm, and ahead of the pack!

## Quick Answers

- **What is this?** Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997 by mishimoto
- **How much does it cost?** $1468 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/259421742-mishimoto-mmrad-mia-90-performance-aluminum-radiator-compatible-with-mazda)

## Best For

- mishimoto enthusiasts

## Why This Product

- Trusted mishimoto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek & Strong Finish:** Polished tank ends and thick core combine durability with a premium look under the hood.
- • **Plug-and-Play Perfection:** Direct fit for ’90-’97 Mazda Miata—no cutting, no hassle, just seamless upgrade.
- • **Built to Last, Guaranteed:** TIG-welded construction backed by Mishimoto’s lifetime warranty—drive worry-free.
- • **Boosted Capacity, Better Flow:** Nearly doubles coolant capacity with 1.25" inlet/outlet for superior heat dissipation.
- • **Race-Ready Cooling Efficiency:** Dual-core 100% brazed aluminum design slashes engine temps for peak performance.

## Overview

The Mishimoto MMRAD-MIA-90 is a high-performance aluminum radiator engineered specifically for 1990-1997 Mazda MX-5 Miata models. Featuring a dual-core, 100% brazed aluminum construction with TIG-welded tanks, it offers superior cooling efficiency and durability. Designed for a direct OEM fit, it requires no modifications and includes a high-pressure radiator cap and magnetic drain plug. With nearly double the coolant capacity of stock radiators and backed by a lifetime warranty, this radiator is the ultimate upgrade for both daily drivers and autocross enthusiasts seeking reliable engine temperature management.

## Description

By replacing your current Miata radiator with a Mishimoto performance aluminum radiator you will undoubtedly notice a cooler more efficient running engine.All Mishimoto Mazda Miata performance aluminum radiators are designed and engineered to maximize cooling efficiency, protect your car from the overheating, and boost overall engine functions.With its lightweight dual core, 100% brazed aluminum, and polished tank ends installing a direct OEM fit Mishimoto radiator is effortless, no cutting or modification is required.All Mishimoto radiators come with a high pressure 1.3 bar Mishimoto radiator cap and a great .Check out the Mazda Miata hose kit, for even greater cooling efficiency.

Review: First off, this is a must have to replace the worn out discoloured OEM radiator. Uses all OEM hardware and mounting points and fits perfectly! Nearly doubles coolant capacity and the hoses fit no problem. I'd recommend this to anyone with a Miata looking for that upgrade for Autocross or even just daily driving.
Review: Even though I took points off for value, this is a bit more expensive than many others, I think it was well spent money. It has a thicker core than stock or even other aluminum radiators & is more nicely finished than others too. While it fits well with the stock mounts & bolts, the added thickness means that the stock fans no longer clear the plastic intake on my '95 NA, a little trimming her & there fixed that issue though.

## Features

- Direct fit for the 1990-1997 Mazda Miata 1.6L/1.8L
- Overall Size: 27.8" x 18" x 2.55" / Core Size: 12.6" x 25.12" / Rows: 2
- Inlet & Outlet: 1.25" / Core Thickness: 1.97" / Tank Wall Thickness: 0.08"
- TIG-welded aluminum radiator includes high-pressure rad cap and magnetic drain plug
- Mishimoto Lifetime Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003GZ8HBK |
| Brand | Mishimoto |
| Customer Reviews | 4.4 4.4 out of 5 stars (163) |
| Date First Available | 20 August 2012 |
| Item Weight | 8.16 Kilograms |
| Item model number | MMRAD-MIA-90 |
| Manufacturer | Mishimoto |
| Manufacturer Part Number | MMRADMIA90 |
| Model | MMRAD-MIA-90 |
| OEM Part Number | MMRAD-MIA-90 |
| Product Dimensions | 70.61 x 6.35 x 45.72 cm; 8.16 kg |

## Images

![Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997 - Image 1](https://m.media-amazon.com/images/I/61faADJyH3L.jpg)
![Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997 - Image 2](https://m.media-amazon.com/images/I/61qhBTseezL.jpg)
![Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997 - Image 3](https://m.media-amazon.com/images/I/71ilJ9an-OL.jpg)
![Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997 - Image 4](https://m.media-amazon.com/images/I/71yiq+sUoPL.jpg)
![Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator Compatible With Mazda MX-5 Miata 1990-1997 - Image 5](https://m.media-amazon.com/images/I/81KEdHKt+8L.jpg)

## Questions & Answers

**Q: Does this work with stock fans or do I need to buy the mishimoto fan and shroud?**
A: It DOES work with stock fans you do NOT need the slim fans. But I will say this, it is a tight tight tight fit with stock fans.

**Q: Are these sturdy, good quality?**
A: The radiator seems sturdy. I have used it for two or three years now, although I don't put a lot of miles on the Miata. It seeped around the cap until I tried a third radiator cap, which fixed the problem. I guess it was two bad caps, which was odd. The quality is okay for the price-it was a little difficult to bolt everything in place. It works.

**Q: I see multiple depths in the description and need to know what fans to get. What is the actual depth measurement?**
A: Hello,

This radiator's core measures 1.97" thick.
The end tanks are ~2.55" including the inlet and outlets.

For additional questions or concerns, please reach out to Support@Mishimoto.com!

Thanks,
Justin T.
Mishimoto Automotive

**Q: Does this come with a warranty in case it breaks or doesn’t work?**
A: Hello,

We have a Lifetime Warranty for the original purchaser of any Mishimoto part.

For additional questions or concerns, please reach out to Support@Mishimoto.com!

Thanks,
Justin T.
Mishimoto Automotive

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 19 September 2018*

First off, this is a must have to replace the worn out discoloured OEM radiator. Uses all OEM hardware and mounting points and fits perfectly! Nearly doubles coolant capacity and the hoses fit no problem. I'd recommend this to anyone with a Miata looking for that upgrade for Autocross or even just daily driving.

### ⭐⭐⭐⭐⭐ Review
*by R***V on 10 April 2023*

Even though I took points off for value, this is a bit more expensive than many others, I think it was well spent money. It has a thicker core than stock or even other aluminum radiators & is more nicely finished than others too. While it fits well with the stock mounts & bolts, the added thickness means that the stock fans no longer clear the plastic intake on my '95 NA, a little trimming her & there fixed that issue though.

### ⭐⭐⭐ Review
*by S***A on 31 July 2018*

Poor fitment, and not all rad studs could be used - one side lines up, but the other side doesn't. Took a little fiddling (but nothing out of the norm) to make the thing fit. If you use stock rad fans and the stock intake cross over tube on a 1.8, expect the hemholtz chamber to rub up against the back of the rad fan. Not really perfect fit. Performance wise though, it's great. Temps stay rock solid on track and in extended idle. The unit weighs quite a lot more than the original rad, so do expect weight balance to change with this item.

## Frequently Bought Together

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-17*