Cusco 684003AL Radiator Cooling Plate Aluminum - Blue

A car's radiator relies on airflow through its core fins to dissipate heat effectively. However, many vehicles have a gap between the top of the radiator and the upper support panel, allowing valuable cooling air to escape over the radiator rather than passing through it. The Cusco 684003AL Radiator Cooling Plate solves this problem by sealing that gap and directing airflow directly through the radiator core where it is needed most.

By maximizing the volume of air forced through the radiator, the Cusco Cooling Plate helps maintain lower coolant temperatures during demanding conditions such as track days, spirited canyon runs, and sustained highway driving — reducing the risk of overheating and helping protect your engine.

Key Features:

• Seals the gap between the radiator top and upper support to eliminate air bypass
• Forces airflow through the radiator core for improved cooling efficiency
• Constructed from lightweight aluminum for durability without added weight
• Finished in Cusco signature blue for a clean, branded underhood appearance
• Simple bolt-on installation using standard hand tools — no cutting or fabrication required
• Ideal for track use, high-speed driving, and performance applications

The Cusco Radiator Cooling Plate is a straightforward, low-cost upgrade that delivers a meaningful improvement in thermal management for performance-oriented drivers.