Radiator for International ProStar 8600 (2010-2015)

Heavy-Duty All-Aluminum Radiator for 2010-2015 International ProStar,8600 (Class 8 Conventional)

What it Does: The all-aluminum replacement radiator restores baseline thermal dissipation capacity on 2010-2015 International ProStar and 8600 trucks to prevent overheating, coolant loss, and severe ECU-triggered engine derate under continuous freight loads.

The Stock International ProStar,8600 Plastic-Aluminum Thermal Cycling Weakness

Factory radiator assemblies on Class 8 haulers rely on crimped plastic end tanks bound to an aluminum core via elastomeric gaskets. Extended severe-duty thermal cycling, high system pressure spikes, and chassis torsional vibration stress these crimp joints over time. This leads to dry rot, tank seam separation, hairline stress fractures, and internal tube clogging from silicate precipitation. Once coolant weeping initiates, drops in system pressure cause premature boiling, elevated cylinder head temperatures, and ECM torque derate on the MaxxForce 13 or Cummins ISX15 platform.

The Engineering Solution

Engineered for high-mileage regional and line-haul dependability, this heavy-duty unit features 100% brazed all-aluminum construction with robotic TIG-welded tanks that eliminate failure-prone crimped gaskets. A rugged 2-row, 48 mm core (35.24 x 40.55 in) delivers maximized surface area and optimized fin density, yielding superior conductive heat transfer and turbulent internal coolant velocity. Featuring 2.52-inch inlet and outlet necks, the unit withstands extreme pressure oscillations and heavy road shock while dropping straight into the factory isolation mounts without chassis modifications.

What's Included

• 1 All-Aluminum Heavy-Duty Radiator

Technical Specifications

Compatibility

• 2010-2015 International ProStar
• 2010-2015 International 8600 TranStar
• 2010-2011 International 8500 TranStar

Frequently Asked Questions & Fitment Warnings

Does this fit the Class 8 Conventional ProStar,8600?

Yes, this is a direct fit for the 2010-2015 International ProStar,8600 equipped with the MaxxForce 11/13 or Cummins ISX15 engine.

Do I need to bleed the system after radiator installation?

Yes, you must transfer original fittings and sensors, refill with heavy-duty extended life coolant (ELC), and thoroughly bleed trapped air to prevent hot spots and cavitation.

The International Heavy-Haul Standard

Engineered to handle severe GCWR commercial hauling demands, this all-welded heat exchanger is designed to ensure sustained heat rejection under maximum grade climbs and stop-and-go terminal transit.