Explore Pontiac Lemans Cooling Systems & Pontiac Lemans Engine Cooling Fan Assembly Purchase Pontiac Lemans Engine Oil Cooler Assembly. Maintaining the cooling system in your Pontiac LeMans is crucial for engine longevity; regular coolant changes, inspections for leaks, and ensuring proper thermostat operation are key. If your LeMans experiences overheating, poor cabin heating, or visible coolant leaks, it's time to consider a replacement. Opting for high-quality materials in radiators and water pumps can significantly extend their lifespan. When selecting a new system, consider aluminum options for optimal heat dissipation and durability. Our easy-to-navigate online catalog features a variety of cooling system components, each with detailed specifications to ensure a perfect match and streamline your installation process, keeping your classic ride running cool and efficient.