One Stop Solutions 2222 Radiator

Radiator for Lexus GS300 and GS400

Restore cooling performance with this OSC Premium New Automotive Radiator, part number 2222. It is built for OES form and function with a downflow design, plastic tanks, a PA core, and a concentric transmission oil cooler for direct replacement service on select Lexus GS300 and GS400 applications.

Fits 1998-2005 Lexus GS300, N/A. Fits 1998-2000 Lexus GS400, N/A.

Key Features

• Premium aluminum construction with cadmium-plated tubes inside and out to help resist premature failure
• Downflow radiator design with one-row core construction
• Transmission oil cooler included with concentric cooler design
• Cap included: W/CAP - Micro 1.1
• Engine oil cooler not included
• Engineered for multi-fit applications while maintaining factory-style fit and appearance
• Each unit is pressure tested during production
• Part number 2222 cross-references APDI 8012222 and Spectra Premium CU2222 for the same application

Detailed Description

This OSC radiator is designed for Lexus GS300 and Lexus GS400 cooling system service where OE-style fit, function, and cooling capacity matter. The core measures 29 13/16 inches wide by 15 3/4 inches high, with a 5/8-inch core thickness, 1 5/16-inch inlet, and 1 1/2-inch outlet. The integrated concentric transmission cooler and factory-style plastic tank construction support reliable heat transfer and straightforward replacement on the specified vehicles. Part number 2222 is built with enhanced fin density and upgraded cooling components to address heat load in higher-mileage use.

Common Problems This Radiator Can Address

• Coolant leaks from a damaged or aging radiator tank or core
• Overheating caused by restricted or inefficient heat exchange
• Transmission fluid temperature concerns related to a failing internal cooler
• Cracked fittings, weakened seams, or corrosion-related radiator failure
• Reduced cooling performance on high-mileage Lexus GS300 and GS400 vehicles

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet sizes, and cooler connection layout before installation. This unit is a downflow design and includes the cap specified in the product data. For best results, flush the cooling system, inspect hoses and clamps, and confirm transmission cooler line routing before final assembly. Use the factory mounting points and torque specifications during installation.

Quality Assurance

OSC tests the radiator core before assembly, then tests the transmission and engine oil coolers prior to installation into the tank, and tests the completed assembly again. The design follows OES cooler requirements where originally equipped and uses factory-style components to support consistent fit and performance.