International 9300/9370 Radiators

Frequently Asked Questions About International 9300/9370 Radiators

Will this radiator fit my International 9300 or 9370 without modification?

Radiators for the 9300/9370 series are built to match the factory core support and mounting points for these models, but fitment can vary depending on engine option, model year, and whether your truck has an OEM or aftermarket cooling module setup. Always check the core dimensions, tank style, and mounting tab locations against your existing radiator before ordering to confirm a direct fit.

What is the difference between aluminum and copper-brass radiators for these trucks?

Aluminum radiators are lighter and generally more resistant to corrosion, while copper-brass units are known for being easy to repair and have a long track record of reliability in heavy-duty applications. Your choice usually comes down to your engine cooling requirements, budget, and personal preference, since both styles are commonly used in the 9300/9370 lineup.

How do I know if I need a complete radiator or just a replacement core?

If your existing tanks, mounting brackets, and hose connections are still in good condition and only the core has failed due to leaks or clogging, a replacement core may be a more cost-effective option. If the tanks are cracked, corroded, or the mounting points are damaged, a complete radiator assembly is typically the better long-term solution.

What should I check before installing a new radiator?

Before installation, inspect the mounting brackets, hoses, and clamps for wear, and make sure the fan shroud and any charge air cooler or condenser mounts line up correctly with the new radiator. It is also a good idea to flush the cooling system and replace coolant, hoses, and worn clamps at the same time to help prevent premature failure of the new radiator.

Are these radiators compatible with both glider kits and stock engine setups?

Most radiators listed in this category are designed to match the original cooling system specifications for the engines commonly paired with the 9300/9370, but glider kits or engine swaps can change cooling requirements. If your truck has a non-stock engine or a glider kit configuration, double check core size, tank configuration, and outlet locations to make sure the radiator will support your specific setup.