International LoneStar Radiators

Frequently Asked Questions About International LoneStar Radiators

Will this radiator fit my International LoneStar without modification?

Radiators are typically designed to match specific model years and engine configurations of the International LoneStar, since core size, tank design, and mounting points can vary. Always check the listed year range and engine specification against your truck before ordering, and compare mounting hole placement and inlet/outlet locations to your factory unit if you are unsure.

Is this a direct OEM replacement or an aftermarket unit?

Both OEM and aftermarket radiators are commonly available for the LoneStar. OEM units are built to match original factory specifications exactly, while aftermarket options are manufactured to fit and perform similarly, often at a lower cost. Product listings should specify which type you are purchasing, so review the description carefully to confirm it meets your needs.

What material is the radiator core and tanks made from, and does it matter?

Most heavy-duty truck radiators use an aluminum core paired with either plastic or aluminum tanks. Aluminum cores are valued for efficient heat transfer and durability, while tank material can affect resistance to pressure and heat cycling over time. Check the product specifications for core and tank material so you know what you are installing.

What should I check before installing a new radiator?

Before installation, inspect the mounting brackets, hoses, clamps, and cap for wear or damage, since these components often need to be reused or replaced alongside the radiator. It is also a good idea to flush the cooling system and inspect the fan shroud and charge air cooler connections, if applicable, to ensure everything lines up correctly with the new unit.

Does the radiator come with a warranty, and what does it typically cover?

Warranty coverage varies by manufacturer and part type, so review the specific warranty terms listed with the product before purchasing. In general, radiator warranties cover defects in materials or workmanship but may not cover damage caused by improper installation, coolant contamination, or collision damage.