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Koyo A1140 OEM Replacement Radiator with Aluminum Core

(1990-1997 Mazda Miata)

Part of: Koyo Replacement Radiator with Aluminum Core

Other options in this family: Koyo A2890 Koyo A13641 Koyo A13540 Koyo A13076 Koyo A2198

Manufacturer

Picture for manufacturer Koyo

Part Number

A1140
10 reviews
Sale Price

$153.38

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Koyo A1140 is a high-quality OEM replacement radiator designed to meet or exceed original equipment standards. Engineered with precision by Koyorad, a trusted manufacturer with a reputation dating back to 1956, this radiator delivers reliable cooling performance and direct-fit installation.

Construction and Design:

  • Single-row aluminum core for efficient heat dissipation
  • Durable plastic end tanks for cost-effective reliability
  • Manufactured in ISO 9001 certified facilities
  • Designed to exact OEM specifications for proper fitment
  • Includes transmission oil cooler where applicable

Installation and Compatibility:

  • True plug-and-play installation—no drilling, cutting, or modifications required
  • Direct replacement for factory radiator
  • Compatible with factory fan components
  • All hose connections and mounting points match OEM locations

This radiator supersedes part number A1139 and cross-references to Mazda OEM part B64J15200. Backed by Koyorad's commitment to quality, this replacement radiator offers an affordable alternative to dealer pricing without compromising on performance or fit.

Products specifications

Fits

1990-1997 Mazda Miata

Core Height

12.625

Inlet Diameter

1.25

Core Material

Aluminum

Prop 65

No

Outlet Diameter

1.25

Tank Material

Plastic

Faster shipping than I expected. Easy order process. The ignition switch was my problem and Autoplicity part was exactly what I needed at a price better than anyone else had, with shipping included. I will definitely look to them again when I need any more parts for my Monte Carlo SS.<br>Only slight negative would be it took a few days to get an email with tracking number so I would know when my part would come. But once I got it, found it was coming sooner than I originally thought, which was great.

Great

great pricing, and easy to use web interface!

yes experience.

Quick

Best price on the Internet and quick shipping

These are the best prices online, $1100 lift kit for $430. Insane.

Best prices anywhere.

These guys are awesome. I placed my order and shipped out asap. Live inventory is amazing. All the parts I needed were in stock and shipped to me.

Autoplicity processed and shipped my order super fast! The best prices on the web for the Husky floor mats! Will definitely purchase from again!

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