Koyorad A2689-1 Radiator

Overview of Koyorad A2689-1 Radiator for Lexus RX330

The Koyorad A2689-1 radiator is engineered specifically for the Lexus RX330, providing reliable cooling performance. Designed with precision, this radiator integrates an internal transmission oil cooler to support both engine and transmission cooling needs.

• Core dimensions: 25.5625 inches height, 19.8125 inches width, 0.875 inch thickness
• Constructed with a single-row aluminum core for efficient heat dissipation
• Plastic tanks for durability and corrosion resistance
• Includes internal transmission oil cooler with 3 cooling plates
• Inlet diameter: 1.5 inches; outlet diameter: 1.3125 inches
• Transmission oil cooler diameter: 1.0625 inches

Detailed Radiator Specifications and Features

This Koyorad radiator (part number A2689-1) features a lightweight aluminum core that enhances heat transfer while maintaining structural integrity. The single-row core design balances cooling efficiency with compact size, suitable for the Lexus RX330’s engine bay. The plastic tanks reduce weight and resist corrosion, extending the radiator’s service life. The integrated internal transmission oil cooler includes three plates, allowing effective cooling of transmission fluid, which is critical for maintaining transmission performance and longevity.

Compatible Vehicles and Applications

This radiator is compatible with the Lexus RX330 model, ensuring proper fitment and optimal cooling system performance. It is designed to replace the original equipment radiator and transmission oil cooler assembly, addressing common cooling system issues such as overheating and transmission fluid temperature regulation.

• Overheating engine due to radiator core damage or clogging
• Transmission fluid overheating affecting shifting performance
• Leaks or cracks in radiator tanks or core
• Reduced cooling efficiency from corrosion or wear
• Failure of original transmission oil cooler components

Installation Notes and Tips

When installing the Koyorad A2689-1 radiator on a Lexus RX330, ensure all hose connections match the specified inlet (1.5 inches) and outlet (1.3125 inches) diameters. Properly flush the cooling system before installation to prevent contamination. Verify the transmission oil cooler lines connect securely to the integrated cooler with a 1.0625-inch diameter. Use manufacturer-recommended coolant and transmission fluid to maintain system integrity.

Quality Assurance and Warranty Information

Koyorad radiators are manufactured to meet or exceed OEM standards, using high-quality aluminum cores and durable plastic tanks. The A2689-1 radiator undergoes rigorous testing to ensure leak-free performance and efficient cooling. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.