Keep your Sterling L-Series running cool with durable, high-performance radiators. Designed to fit Freightliner and Sterling models like the Cascadia, Columbia, M2, Acterra, and AT9500, these plastic aluminum radiators offer excellent heat dissipation and corrosion resistance. Available with or without oil coolers and frames, you'll find the perfect fit for your truck. Whether you need a replacement or an upgrade, these radiators help maintain optimal engine temperatures and keep your rig rolling.
Frequently Asked Questions About Sterling L-Series Truck Radiators
Will this radiator fit my Sterling L-Series truck?
Sterling L-Series trucks (including L7500, L8500, L9500, and L9513 models) were built over several years with different engine options, such as Caterpillar, Mercedes, and Detroit Diesel engines, which can affect radiator core size and mounting configuration. Always check the engine type, cab configuration, and core dimensions listed on the product page against your truck's specifications or existing radiator before ordering to ensure a proper fit.
What material and core construction options are available?
Radiators in this category are typically available in aluminum or copper/brass core construction. Aluminum radiators are generally lighter and resistant to corrosion, while copper/brass units are often chosen for their heat transfer properties and repairability. The listing for each radiator will specify the core material, row count, and construction details so you can select the option that matches your truck's cooling needs and budget.
Is this a direct OEM replacement, or will modifications be needed for installation?
Most radiators listed in this category are designed as direct replacements for the original Sterling L-Series radiator, matching mounting points, hose connections, and overall dimensions. That said, it's a good idea to compare inlet and outlet locations, tank design, and mounting bracket positions with your old unit before installation, since running changes across model years can occasionally affect fitment.
How do I know if I need a new radiator versus having mine repaired?
Common signs that point to replacement rather than repair include cracked or bulging tanks, extensive core corrosion, repeated leaks after previous repairs, or reduced cooling performance even after flushing the system. If your radiator has a single small leak in an accessible spot, a repair may be sufficient, but widespread damage or an aging unit is usually more cost-effective to replace outright.
What should I check when installing a new radiator to avoid comebacks?
Before installation, inspect and replace worn hoses, clamps, and the radiator cap, and flush the cooling system to remove old coolant and debris. Confirm that the fan shroud, mounting brackets, and transmission cooler lines (if applicable) align properly with the new radiator. After installation, run the engine to operating temperature, check for leaks at all connections, and verify proper coolant level and system bleed to prevent air pockets.
