Megan Racing - Lexus GS300 98-05 (EXC GS400) Radiator – MR-RT-LG98

Cooling is essential during high-performance driving, particularly during sustained high-load and high-RPM conditions that significantly increase engine temperatures. Megan Racing Aluminum Radiators are engineered to meet these demands, ensuring your engine remains at optimal temperatures during intense driving sessions.

Made entirely of aluminum—from the tanks to the core—this radiator offers a superior upgrade over factory radiators that often feature plastic tanks prone to cracking and leaking. Aluminum construction provides enhanced durability and superior heat dissipation. The larger heat-exchanging core improves heat transfer efficiency, while also increasing the total coolant capacity to better manage engine temperatures under high-performance conditions.

Designed as a complete bolt-on replacement, this radiator is compatible with factory components such as fans and A/C condensers. However, due to its slightly larger size, we recommend upgrading to high-capacity, slim radiator fans for optimal performance.

Vehicle Fitment

• Lexus GS300 1998
• Lexus GS300 1999
• Lexus GS300 2000
• Lexus GS300 2001
• Lexus GS300 2002
• Lexus GS300 2003
• Lexus GS300 2004
• Lexus GS300 2005

Notes:
• Excludes Lexus GS400

Specifications and Features

• Construction: All Aluminum
• Heat Exchanger Thickness: 37mm
• Radiator Cap: Not Included
• Compatibility: OEM Fans
• Direct Bolt-On Replacement
• Warranty: 1-Year Against Manufacturer Defects