Sterling Acterra Truck Radiators

Frequently Asked Questions About Sterling Acterra Truck Radiators

Will this radiator fit my Sterling Acterra, and what should I check before ordering?

Sterling Acterra radiators can vary by model year, cab configuration, and engine option (such as Caterpillar, Mercedes/Detroit, or Cummins power plants), so core size, inlet/outlet placement, and mounting points are not always identical across the lineup. Before ordering, confirm your truck's model year, engine, and OEM part number if available, and compare it against the fitment details listed on the product page. If you are unsure, reach out to our team with your VIN or old part number so we can verify the correct match.

Should I choose an aluminum or copper/brass radiator core?

Most replacement radiators for the Acterra use aluminum cores with plastic tanks, which are lighter and cost-effective while still meeting factory cooling requirements. Some applications offer all-aluminum or copper/brass construction for added durability, particularly in demanding vocational or high-heat operating conditions. Consider your duty cycle and budget when choosing between these options, and check the product description for the specific core material offered.

How do I know if my radiator is actually failing versus another cooling system issue?

Common signs of a failing radiator include visible coolant leaks, corrosion or damage at the tanks or seams, frequent overheating even after replacing the thermostat or cap, and reduced coolant flow that is not explained by a bad fan clutch or water pump. Because overheating can also stem from a clogged radiator, failing fan clutch, or low coolant, it is worth inspecting the whole cooling system before assuming the radiator itself is the culprit.

What is involved in installing a replacement radiator on an Acterra?

Installation typically involves draining the coolant, disconnecting the upper and lower hoses, removing the fan shroud and any brackets, unbolting the radiator from its mounts, and transferring over parts like the cap or sensors to the new unit before reversing the process. Most installations can be done with common hand tools, but because radiators are heavy and coolant systems are pressurized, it is important to let the engine fully cool down first and to properly torque fittings to avoid leaks. If your truck has a charge air cooler or transmission cooler integrated with the radiator assembly, budget extra time for those connections as well.

Do these radiators come with a warranty, and are they new or remanufactured?

Product listings will specify whether a radiator is new, aftermarket, or remanufactured, along with any applicable warranty coverage, so check the individual product page for those details before purchasing. In general, new aftermarket radiators carry a standard defect warranty, while remanufactured units may have shorter or more limited coverage. If warranty terms are not clearly listed, contact our customer service team for clarification before you buy.