Get GMC Sierra 3500 Pickup Turbo Intercooler. Shop GMC Sierra 3500 Pickup Aftermarket Charge Air Coolers & GMC Sierra 3500 Pickup Intercooler. Maintaining the intercooler of your GMC Sierra 3500 Pickup is vital for optimal engine performance, as it cools the compressed air from the turbocharger, enhancing combustion efficiency. To extend its lifespan, ensure that all connections are secure, and periodically check for blockages and clean the exterior fins to promote adequate airflow. Signs that you might need a replacement include a noticeable loss in power or increased exhaust smoke, suggesting a compromised intercooler. When choosing a new intercooler, consider bar-and-plate or tube-and-fin designs, each offering distinct cooling efficiencies and pressure drop characteristics suitable for different performance needs. Prioritize high-grade materials for durability and follow the manufacturer's guidelines to ensure proper installation, securing peak performance and reliability for your heavy-duty tasks.