Mishimoto 1999-2005 Mazda Miata Manual Aluminum Radiator

This Mishimoto performance aluminum radiator is a direct-fit upgrade for 1999-2005 Mazda applications covering Miata, Miata 10th Anniversary, Miata LS, Miata Mazdaspeed, Miata SE. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

The Mishimoto 99-05 Mazda Miata radiator is an ideal upgrade for your vehicle. With up to 30% greater cooling efficiency than standard radiators, precision engineered as a direct OEM fit for smooth installation. These kits are engineered around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

• Direct fit for the 1999-2005 Mazda Miata, manual
• Full aluminum construction including durable, TIG-welded end tanks
• Features a two-row, 2.05-in thick, efficient brazed aluminum core
• Ideal replacement for the failure-prone stock radiator
• Perfect for use on the street, track, or autocross course
• Includes 1.3 Bar High-Pressure Radiator Cap which effectively raises the boiling point of engine coolant, providing a safer and more efficient system
• Included magnetic drain plug captures harmful metal debris to safeguard cooling system performance

What's Included

• Mishimoto Radiator
• Magnetic Drain Plug
• Mishimoto Radiator Cap
• Mishimoto Lifetime Warranty

Specifications

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 1999-2005 (6 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment