Koyorad A1140 Radiator

Brand Koyorad A1140
Core Height 12.625
Core Material Aluminum
Core Row Quantity 1
Core Thickness 1
Core Width 25.5625
Inlet Diameter 1.25
Outlet Diameter 1.25
Tank Material Plastic
Title Koyorad a1140 radiator
Transmission Oil Cooler Diameter 1
Fits Mazda · 8 vehicles

OE equivalent radiator. Built to match original-style replacement needs.

Aluminum core. Helps promote efficient heat transfer.

Single-row design. A straightforward cooling layout for dependable performance.

$177.45Free shipping
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Koyorad A1140 Radiator for Mazda Miata

The Koyorad A1140 radiator is an OE-equivalent replacement built for 1990-1997 Mazda Miata applications. It uses an aluminum core with plastic tanks to match the factory-style layout while supporting dependable cooling performance for daily driving and repair work.

Key Features

  • Direct-fit radiator for 1990-1997 Mazda Miata
  • Aluminum core construction for efficient heat transfer
  • Plastic tank design in an OE-style configuration
  • Single-row core with 1-inch thickness
  • 1.25-inch inlet and 1.25-inch outlet diameters
  • Integrated 1-inch transmission oil cooler diameter
  • Core dimensions: 12.625 inches high by 25.5625 inches wide

Detailed Description

Built for Mazda Miata cooling system service, the Koyorad A1140 radiator follows OE-equivalent specifications to support proper fitment and factory-style replacement. The aluminum core is sized for efficient coolant flow and heat exchange, while the plastic tanks help maintain the original equipment layout. For shoppers searching for a 1990-1997 Mazda Miata radiator, Koyorad A1140 provides a straightforward replacement option that aligns with the vehicle’s original cooling system dimensions.

Koyorad applies its manufacturing experience to produce replacement radiators that match OE expectations for fit and function. This part number, A1140, is a practical choice when replacing a worn or leaking radiator on a Mazda Miata from the 1990-1997 model years.

What It Helps Address

  • Coolant leaks from an aging or damaged radiator
  • Overheating caused by reduced heat transfer efficiency
  • Restricted coolant circulation from internal radiator wear
  • Fitment issues when replacing a factory-style Mazda Miata radiator
  • Cooling system service needs on 1990-1997 Mazda Miata models

Installation Notes and Tips

Verify inlet and outlet hose diameters, core dimensions, and transmission cooler connection size before installation. Inspect radiator hoses, clamps, and coolant condition during replacement to help ensure a complete cooling system repair. This part fits 1990-1997 Mazda Miata, N/A.

Quality Assurance

Koyorad manufactures OE-equivalent radiators with the technical experience needed for replacement cooling components. The A1140 is built to meet the dimensional and functional requirements expected for Mazda Miata radiator service.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1997MazdaMiata1.8LL4N/A—
1996MazdaMiata1.8LL4N/A—
1995MazdaMiata1.8LL4N/A—
1994MazdaMiata1.8LL4N/A—
1993MazdaMiata1.6LL4N/A—
1992MazdaMiata1.6LL4N/A—
1991MazdaMiata1.6LL4N/A—
1990MazdaMiata1.6LL4N/A—