Part #: A2303

Koyorad A2303 Radiator

Koyorad Radiator
⚙️ 7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Koyorad Radiator
🚗Fitment: Mazda, Protege and Protege5
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Cooling Solution for Mazda Protege and Protege5

The Koyorad A2303 radiator is engineered to provide efficient cooling performance for Mazda Protege and Protege5 models. Designed with durable materials and integrated features, this radiator supports optimal engine temperature management and transmission oil cooling.

  • Core dimensions: 27.625 inches width, 12.8125 inches height, 0.625 inches thickness
  • Constructed with an aluminum core for effective heat dissipation
  • Single core row design for balanced cooling efficiency
  • Plastic tank material for corrosion resistance and weight reduction
  • Includes internal transmission oil cooler with 1.125 inch diameter inlet and outlet
  • Compatible with Mazda Protege and Protege5 vehicles
  • Part number A2303 for precise fitment and replacement

About the Koyorad Radiator Product Line

The Koyorad Radiator line focuses on delivering high-quality cooling components that meet or exceed OEM specifications. This product line emphasizes durable core materials and integrated transmission oil coolers to maintain engine and transmission performance. The A2303 radiator exemplifies these standards with its aluminum core and built-in transmission oil cooler, tailored for Mazda vehicles.

Detailed Product Description

The Koyorad A2303 radiator features a robust aluminum core measuring 27.625 inches wide, 12.8125 inches high, and 0.625 inches thick, designed to efficiently dissipate heat from the engine coolant. Its single core row configuration balances cooling capacity with compact size. The plastic tanks provide resistance to corrosion and reduce overall weight. This radiator also includes an internal transmission oil cooler with 1.125 inch diameter inlet and outlet ports, allowing it to manage transmission fluid temperature effectively. This integration helps maintain transmission performance and longevity in Mazda Protege and Protege5 models.

Common Applications and Problem Resolution

  • Replacement for leaking or damaged radiator cores in Mazda Protege and Protege5
  • Solves overheating issues caused by inefficient cooling systems
  • Addresses transmission fluid overheating with integrated oil cooler
  • Restores proper coolant flow and engine temperature regulation
  • Prevents corrosion-related failures with plastic tank construction

Installation Notes and Tips

Ensure the radiator is compatible with your specific Mazda Protege or Protege5 model year before installation. Properly drain coolant and transmission fluid prior to removal. Inspect hoses and clamps for wear and replace as necessary. When installing the A2303 radiator, verify all inlet and outlet connections, including transmission oil cooler lines, are secure and free of leaks. Bleed the cooling system after installation to remove air pockets and ensure optimal performance.

Quality Assurance and Warranty

The Koyorad A2303 radiator is manufactured to meet strict quality standards, utilizing corrosion-resistant materials and precise engineering. While specific warranty details are not provided, Koyorad products typically adhere to industry quality controls to ensure durability and reliable operation in Mazda Protege and Protege5 vehicles.

BrandKoyorad
Part NumberA2303
PositionKoyorad Radiator
Core Height12.8125
Core MaterialAluminum
Core Row Quantity1
Core Thickness0.625
Core Width27.625
Inlet Diameter1.125
Internal Transmission Oil CoolerYes
Outlet Diameter1.125
Tank MaterialPlastic
TitleKoyorad a2303 radiator
Transmission Oil Cooler Diameter1.125
Transmission Oil Cooler IncludedYes

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003MazdaProtege1.6LL4N/AKoyorad Radiator
2003MazdaProtege52.0LL4N/AKoyorad Radiator
2002MazdaProtege1.6LL4N/AKoyorad Radiator
2002MazdaProtege52.0LL4N/AKoyorad Radiator
2001MazdaProtege1.6LL4N/AKoyorad Radiator
2000MazdaProtege1.6LL4N/AKoyorad Radiator
1999MazdaProtege1.6LL4N/AKoyorad Radiator

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.