Peterbilt

At American Radiator, we specialize in supplying aftermarket Peterbilt charge air coolers (CACs) that deliver OEM-level performance at wholesale pricing. Whether you drive a Peterbilt 379, 389, 579, or other popular models, our intercoolers are engineered for durability, horsepower retention, and improved fuel efficiency. Each aluminum charge air cooler features a cast tank, crossflow design, and fully welded construction, eliminating epoxy for maximum reliability.

Choose from our standard CACs, backed by a two-year, unlimited mileage warranty, or upgrade to our bar-and-plate severe-duty design with a lifetime warranty—built to withstand the extreme heat, pressure, and vibration common in heavy-duty trucking applications.

Replacing your Peterbilt intercooler is critical during scheduled maintenance, as a leaking or restricted CAC can cause power loss, overheating, black smoke, and reduced engine longevity. That’s why American Radiator is trusted by fleets, independent drivers, and repair shops nationwide.

With our large in-stock inventory, expert support, and same-day shipping, you can get back on the road quickly and with confidence. Need help finding the right Peterbilt charge air cooler for your application? Call 877-203-4572 and speak with our cooling specialists today.

FAQ'S

What Peterbilt models will your charge air coolers fit?
Our coolers are engineered for compatibility with many Peterbilt models—such as 579, 389, 567, and 389—and are built to match factory inlet/outlet layouts, mounting points, and airflow specifications.

What is the difference between bar & plate and tube & fin coolers?
Bar & plate coolers excel under heavy load, offering increased durability, structural integrity, and resistance to clogging. Tube & fin designs are lighter, more compact, and suited for standard or moderate-duty applications.

How do I select the correct charge air cooler for my Peterbilt engine?
Use the OEM part number, note the cooler’s core dimensions, boost rating, and inlet/outlet configuration. Compare these specs with our catalog or product filters to pinpoint the right match.

Can I replace just the charge air cooler and keep my existing hoses and clamps?
Yes, in many cases a cooler-only replacement is valid if hoses, ducts, and clamps remain intact and compatible. However, many shops recommend upgrading those related parts simultaneously to avoid leaks or misfit issues.

What are the warning signs of a failing charge air cooler on a Peterbilt?
Look for reduced engine power, increased intake air temperature, boost pressure loss, smoke under acceleration, or visible oil residue on the cooler. These are indicators that your charge air system needs attention.