Find Aftermarket Sterling Acterra Radiators. Keep your truck running cool with our top-notch radiators for models like the Acterra 5500-8500 and M2-106. Durable Options: Choose from copper-brass, plastic-aluminum, or PTR construction to suit your needs and budget. Reliable Performance: Designed for top cooling efficiency, even in tough conditions. Versatile Fit: Perfect for direct replacements or upgrades. Get the cooling power your truck needs with BESTfit radiators built for Sterling and Freightliner models!