Kenworth T660 Radiators

Frequently Asked Questions About Kenworth T660 Radiators

Will this radiator fit my Kenworth T660 without modifications?

Radiators can vary by engine model, cooling system configuration, and production year, so fitment is not always universal across every T660. Before ordering, check the core dimensions, inlet and outlet positions, and mounting points against your truck's original radiator, and confirm the engine type listed for the part matches your own. If you are unsure, have your VIN and engine details on hand when contacting our sales team so we can help verify compatibility.

Is this a new, used, or remanufactured radiator?

We carry a mix of new aftermarket, new OEM, and quality used radiators depending on availability. Each product listing specifies the condition, so be sure to read the description carefully. Used radiators are typically inspected for leaks and damage before being listed, but if you need a warranty-backed option, look for radiators specifically marked as new.

What material is the radiator core made from, and does it affect cooling performance?

Most heavy-duty truck radiators use either an aluminum core with plastic tanks or an all-aluminum construction, and some older or heavy-duty applications may use copper-brass cores. Aluminum radiators are common for their weight savings and corrosion resistance, while copper-brass units are valued for durability and repairability. The listing for each radiator will note the core material so you can choose based on your truck's cooling demands and your own maintenance preferences.

How difficult is it to install a replacement radiator on a T660?

Radiator replacement is a more involved job than swapping smaller components, since it typically requires draining coolant, disconnecting hoses and mounting hardware, and sometimes removing the fan shroud or grille for clearance. Many owner-operators handle this themselves with basic tools and a shop manual, but if you are not comfortable working around the cooling system, a diesel repair shop can complete the install and make sure the system is properly pressure tested afterward.

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

Warranty coverage depends on whether the radiator is new or used and who the manufacturer or supplier is, so check the specific listing for warranty terms before purchasing. In general, new radiators carry a manufacturer defect warranty, while used parts may have a shorter coverage window or be sold as-is. If warranty coverage is important to your purchase decision, reach out to our team and we can confirm the exact terms for the radiator you are considering.