International | Navistar

Optimize your exhaust gas recirculation system with high-performance EGR coolers designed specifically for International / Navistar trucks. These coolers reduce exhaust temperature before recirculation, helping reduce NOx emissions, stabilize combustion, and protect key engine components from thermal wear. Built to withstand the rigors of over-the-road and vocational applications, they deliver reliable cooling even under heavy loads.

Our aftermarket International / Navistar EGR coolers are engineered to meet or exceed original equipment standards. Their robust aluminum cores, precision-machined flow passages, and reinforced end tanks resist distortion, corrosion, and fatigue. Whether your application is a ProStar, LT, HV Series, or other Navistar platform, these coolers are crafted for precise fit and dependable performance under extreme operating conditions.

Though American Radiator does not manufacture these units, we source them from trusted aftermarket suppliers that adhere to strict quality standards for thermal efficiency and durability. Pair your cooler with proper gaskets, brackets, and pipework to complete your EGR retrofit or repair. With rapid shipping, comprehensive technical support, and a deep catalog, American Radiator makes it easy to restore emissions compliance and thermal control.

Trust American Radiator for International / Navistar EGR coolers that deliver real-world durability, emissions performance, and engine protection mile after mile.

FAQ'S

Which International / Navistar engines are compatible with your EGR coolers?
We supply EGR coolers designed for popular International / Navistar engines like the HX, LT, ProStar, and other heavy-duty models—built to match OEM ports, flow paths, and mounting layouts.

What are the common signs of a failing EGR cooler?
You might notice symptoms such as poor idle quality, white or gray smoke, coolant loss (without external leaks), higher exhaust gas temperatures, or fault codes related to EGR sensor readings—all of which can point to a worn or leaking cooler.

What materials do your International / Navistar EGR coolers use?
Our coolers employ durable materials like stainless steel or reinforced aluminum, with robust internal passage geometry and reliable welding or brazing techniques to resist corrosion, thermal stress, and exhaust soot deposits.

Can I install the EGR cooler myself, or should it be done by a professional?
If you’re mechanically proficient, you can install it, but correct torque values, sealing, coolant routing, and sensor alignment are critical. Professional installation is recommended to ensure emissions compliance and long-term reliability.

What maintenance helps extend the life of an EGR cooler?
Keep your cooling system clean and properly maintained (flush coolant, check concentrations), avoid excess soot buildup by maintaining combustion efficiency, inspect gaskets and connections during major service, and clean any interior blockages at signs of resistance.