One Stop Solutions 2300 Radiator

Radiator for 1999-2002 Mitsubishi Galant

Restore cooling performance with this OSC Premium radiator for the 1999-2002 Mitsubishi Galant. Part number 2300 is built to OES form and function with a downflow design, plastic tanks, and a premium aluminum core for dependable heat transfer.

It is engineered for direct replacement service on the Mitsubishi Galant and includes a concentric transmission oil cooler where originally equipped. The design focuses on factory-style fitment, leak resistance, and consistent cooling under daily driving conditions.

Key Features

• Fits 1999-2002 Mitsubishi Galant
• Part number 2300
• Downflow radiator design
• Plastic tank construction with premium aluminum core material
• Transmission oil cooler included; concentric cooler type
• Core dimensions: 28 1/4 in. wide, 14 3/4 in. high, 5/8 in. thick
• 1-row core layout for OE-style packaging
• 1 3/8 in. inlet and outlet diameters
• Individually pressure tested during production

Detailed Description

OSC part number 2300 is a replacement radiator engineered for the 1999-2002 Mitsubishi Galant with attention to factory-style fit, form, and function. The radiator uses premium-grade aluminum core construction with plastic tanks and a die-cut gasket to help maintain a secure seal. OSC also uses cadmium-plated tubes and fits components to factory specifications to support long-term durability and consistent cooling performance.

This radiator includes a concentric transmission oil cooler and is built for applications that originally used that cooler style. It is designed as a direct-fit replacement for Galant cooling system service, making it a practical choice when replacing a leaking, restricted, or damaged radiator. This part cross-references Koyorad A2300 and Dorman HELP 56078 for the same application.

Common Reasons for Replacement

• Coolant leaks from the radiator tank, core, or gasket area
• Overheating caused by reduced heat transfer or internal restriction
• Transmission cooler concerns tied to the integrated cooler circuit
• Physical damage from age, road debris, or corrosion
• Cooling system service on a high-mileage Mitsubishi Galant

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler routing before installation. Flush the cooling system, inspect hoses and clamps, and confirm the fan, thermostat, and coolant condition are in good working order. Because this unit is built for direct replacement use, it is suited to factory-style radiator service on the Mitsubishi Galant.

Quality Assurance

OSC tests the radiator core before assembly, then tests the completed unit again after assembly. Transmission and engine oil coolers are also tested prior to installation into the tank. The design uses engineering updates aimed at improving cooling capacity and service life in higher-mileage vehicles.