Mishimoto MMRAD-MIA-90 Aluminum Radiator for 1990-1997 Mazda Miata (Manual)

Vehicle Fitment

• 1990-1997 Mazda MX-5 Miata (NA6/NA8; 1.6 L and 1.8 L I4; Manual transmission; RWD)

Fitment Notes

• Direct OEM-fit; no cutting or modifications needed
• Specifically for manual transmission -- automatic requires separate cooler kit

Features

• 100% full-brazed aluminum dual-core (2-row) construction with TIG-welded end tanks
• Dual core (1.97" thick) enhances cooling and fluid capacity over stock
• Includes high-pressure 1.3 bar radiator cap and magnetic drain plug
• Lifetime warranty covers manufacturer defects
• Polished finish and increased durability tailored for street, track, and autocross

Specifications

• Part Number: MMRAD-MIA-90
• Overall Dimensions: 27.8" x 18" x 2.55"
• Core Size: 25.12" x 12.6"; Rows: 2; Core Thickness: 1.97"
• Inlet/Outlet: 1.25"; Tank Wall: 0.08"
• Fluid Capacity: ~1.79 gal; Drain Plug: M16 x 1.25

Included Components

• 1x Mishimoto dual-core aluminum radiator (manual-transmission NA Miata)
• 1x Mishimoto 1.3 bar radiator cap
• 1x Magnetic drain plug

Product Description

The Mishimoto MMRAD-MIA-90 Performance Aluminum Radiator is a direct-fit, high-efficiency upgrade for 1990-1997 Mazda Miata models with manual transmissions. With dual-row core and TIG-welded end tanks, this radiator boosts cooling capacity, increases fluid volume, and resists heat fade during spirited driving or track use.

Featuring a high-pressure cap, magnetic drain plug, and lifetime warranty, it installs easily using OEM mounts with no modifications required. Ideal for street, autocross, or track enthusiasts, the MMRAD-MIA-90 ensures reliable performance and long-term durability from daily drives to high-heat scenarios.