Life time Warranty
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  • Direct fit for the 1999-2005 Mazda MX-5 1.8L
  • Ideal replacement for an aged, clogged, or leaking stock radiator
  • Functions with all stock engine bay equipment
  • Mishimoto Lifetime Warranty


This 1999-2005 Mazda MX-5 1.8L radiator is a direct OEM replacement for your old stock unit. There is no need to bend, cut, or modify anything to ensure a proper fitment in your vehicle. This radiator features OEM spec plastic end tanks attached to an aluminum core for stock cooling efficiency. At some point the inevitable happens to original stock radiators. They either spring a leak, get clogged up, or a plastic inlet or outlet cracks due to years of constant clamp pressure. This Mazda MX-5 radiator is a perfect replacement to keep your cooling system in top notch shape, and just like all Mishimoto parts, comes with the Mishimoto Lifetime Warranty.

Purchase Includes

Mishimoto Replacement Radiator
Mishimoto Lifetime Warranty


Cooler Fitting Size(s):

5/8-inch internal thread with joint
More Information
Core Length (in)25.3125
Core Height (in)12.63
Inlet (in)1.25
Outlet (in)1.25
Core Thickness (in)44689
Applications1999-2005 Mazda Miata 1.8L
NoteCooler Fitting Size(s):

5/8-inch internal thread with joint

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.