Aluminum Radiator for Buick Regal (2000-2003) 3.5L 3.8L

High-Efficiency 4-Row Aluminum Radiator for 2000-2003 Buick Regal

Direct Replacement Cooling Upgrade: Replaces failure-prone factory plastic-tank radiators with a heavy-duty 4-row all-aluminum assembly to stabilize operating temperatures under sustained thermal load.

The Stock Regal Thermal Fatigue and Tank Failure

The factory radiator on the W-body Regal utilizes a thin aluminum core joined to molded composite plastic end-tanks via mechanical crimp gaskets. Over decades of heat cycles and pressure variations, these composite tanks embrittle, frequently cracking at the upper hose neck or leaking along the crimp seam. Additionally, the restricted fluid capacity of the factory core struggles with heat soak under aggressive driving or hot ambient conditions, elevating coolant temperatures and stressing the engine assembly.

The Engineering Solution

Constructed entirely from aircraft-grade aluminum, this 4-row performance radiator features furnace-brazed core tubes and precision TIG-welded tanks to eliminate vulnerable crimp seals and plastic components. The high-density louvered fin design exponentially increases core surface area, accelerating thermal dissipation and overall cooling efficiency. Engineered as a direct bolt-in unit, it restores thermal stability while accommodating factory mounting points and transmission cooler lines.

Technical Specifications

Compatibility

• 2000 Buick Regal (3.5L, 3.8L V6)
• 2001 Buick Regal (3.5L, 3.8L V6)
• 2002 Buick Regal (3.5L, 3.8L V6)
• 2003 Buick Regal (3.5L, 3.8L V6)

The Buick Touring Caliber

Built to handle the demanding torque output of the GM 3800 platform, this all-aluminum radiator delivers long-term thermal endurance, preventing catastrophic coolant loss and maintaining peak power delivery whether cruising the open highway or pushing supercharged boost levels.