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Description

Mazda MX-5 NB (99-05) Mishimoto aluminium radiator manual transmission

The Mishimoto radiator MX-5 NB is a full aluminium radiator for the 1999 to 2005 Mazda MX-5 NB with manual transmission. It replaces the failure-prone stock radiator and according to Mishimoto cools up to 30 percent more efficiently.

The brazed aluminium core has two rows and is 52 mm thick, and the end tanks are TIG-welded and polished. Ideal for the street, the track and autocross. The included 1.3 bar cap raises the coolant boiling point and the magnetic drain plug captures metal debris.

Key benefits

• Up to 30 percent more cooling efficiency than stock
• Two-row core, 52 mm thick
• Full aluminium with TIG-welded end tanks
• Direct fit, no modifications
• 1.3 bar radiator cap included
• Magnetic drain plug protects the cooling system
• Mishimoto Lifetime Warranty

Suitable for

Mazda MX-5 / Miata NB, 1999-2005

• Mazda MX-5 NB, model years 1999 to 2005
• Chassis code NB8C
• Manual transmission only; automatic cars need a separate transmission cooler

Technical specifications

• Manufacturer: Mishimoto
• Part number: MMRAD-MIA-99
• Material: brazed aluminium, TIG-welded polished end tanks
• Core: 2 rows, 563 x 325 x 52 mm
• Overall dimensions: 665 x 437 x 65 mm
• Inlet and outlet: 32 mm
• Included: radiator, magnetic drain plug, Mishimoto 1.3 bar radiator cap

Installation and delivery

Mishimoto rates the installation as medium. The radiator uses the factory mounting points and hose connections. Combine it with the Mishimoto silicone hoses for the NB for even more reliability. Refill with fresh coolant and bleed the system after installation. The installation guide is available at the bottom of this page. Delivery time: 4 to 7 days.

Up to 30 percent more cooling efficiency: the NB keeps its cool, session after session.

Why choose this Mishimoto radiator MX-5 NB?

This radiator combines a thick core with full aluminium tanks and a direct fit. A logical first step for any NB that sees track days or drift events. Backed by the Mishimoto Lifetime Warranty.

Frequently asked questions

Does this radiator fit an automatic MX-5 NB?

No, the Mishimoto radiator MX-5 NB is for manual transmission cars only. An automatic needs a separate transmission cooler.

Is the radiator cap included?

Yes, a Mishimoto 1.3 bar cap and a magnetic drain plug are included.

What is the delivery time?

The delivery time is 4 to 7 days.

Downloads and documentation

Installation guide Mishimoto radiator MX-5 NB (PDF, English)

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.