International | Navistar

When your International or Navistar truck—whether a ProStar, LoneStar, DuraStar, or PayStar—shows signs of reduced power, overheating, or failing emissions tests, the charge air cooler (CAC) is often the cause. At American Radiator, we specialize in aftermarket International/Navistar charge air coolers designed to restore performance, protect your turbo, and keep your truck on the road longer.

Our selection includes standard air-to-air coolers with a two-year unlimited mileage warranty, as well as bar and plate severe-duty intercoolers built for maximum durability and backed by a lifetime warranty. Each cooler is engineered to OEM specifications, ensuring a direct fit with no modifications needed.

Since 1976, American Radiator has built trust as a nationwide supplier of heavy-duty cooling components, combining expertise with value pricing. Whether you need a replacement for daily fleet operations or severe service environments, our same day shipping ensures less downtime and faster turnaround.

If you don’t see the exact CAC for your International/Navistar application, call 877-203-4572. Our specialists will help identify the right cooler and discuss repair options to save you time and money.

FAQ'S

What International / Navistar models are compatible with your charge air coolers?
Our charge air coolers are engineered for a wide range of International and Navistar trucks—ProStar, LT, HX, WorkStar, and more—ensuring correct inlet/outlet orientation, mounting points, and airflow requirements.

What is the difference between bar & plate and tube & fin charge air cooler designs?
Bar & plate coolers are more rugged and resistant to clogging, thermal fatigue, and vibration—ideal for demanding environments. Tube & fin coolers offer good efficiency and lighter weight, suitable for moderate duty cycle applications.

How do I choose the right charge air cooler for my International / Navistar engine?
Use your OEM part number or match the cooler’s dimensions, airflow capacity, boost handling specs, and port layout. Our product filters and staff can help you locate the exact replacement.

Can I replace just the charge air cooler without servicing the rest of the system?
Yes, replacing just the cooler is common if hoses, clamps, and ducting remain in good shape. However, replacing all related components often ensures a more reliable and longer-lasting result.

What warning signs indicate my International / Navistar charge air cooler is failing?
Look for symptoms such as reduced engine power, boost pressure loss, overheating, excessive exhaust smoke, or oil residue on the cooler. Catching these early can minimize performance loss and prevent engine damage.