Radiator for International 8600 9100 9200 9400 9900 (2003-2007)

Heavy-Duty Aluminum Core Replacement Radiator for 2003-2007 International 8600, 9100, 9200, 9400, 9900 (9000i / NGV Series)

What it Does: The Heavy-Duty Replacement Radiator restores direct thermal transfer efficiency to 2003-2007 International 8600, 9100, 9200, 9400, and 9900 trucks to eliminate coolant loss and prevent ECM thermal power derating under full payload.

The Stock International 8600, 9100, 9200, 9400, 9900 Thermal Cycling Fatigue

Severe-duty Class 8 haul cycles subject factory heat exchangers to continuous torsional chassis flex and extreme temperature swings. Over time, the OEM crimp seals between the core and tanks degrade, creating hairline fractures, pressure loss, and coolant leaks. Accumulated internal scale and bent external fins degrade convective cooling, causing high water temperatures that trigger engine protection derates on Cummins ISX and Caterpillar C13/C15 platforms during heavy grade climbs.

The Engineering Solution

Engineered to exact OEM dimensional tolerances, this replacement radiator features a brazed aluminum core measuring 33-5/8 inches by 26-3/8 inches with a 2-1/4 inch thickness. High-grade polymer end tanks are sealed with precision-formed header crimps designed to withstand sustained 15–20 PSI cooling loop operating pressures. Optimized tube-and-fin pitch prevents heat soak while maximizing laminar airflow through the charge air cooler. Every unit undergoes rigorous submerged pneumatic leak testing to help ensure structural integrity for 2508454C91 and 2505699C91 interchange applications.

What's Included

• 1x Complete Heavy-Duty Radiator Assembly (Aluminum Core with Composite End Tanks)

Technical Specifications

Compatibility

• 2003-2007 International 8600
• 2003-2007 International 9100
• 2003-2007 International 9200
• 2003-2007 International 9400
• 2003-2007 International 9900

Frequently Asked Questions & Fitment Warnings

Does this fit the 9000i / NGV Series 8600, 9100, 9200, 9400, and 9900?

Yes, this is a direct fit for the 2003-2007 International 8600, 9100, 9200, 9400, and 9900 equipped with the Cummins ISX or Caterpillar platforms matching the specified OE numbers. Fits only trucks whose existing radiator carries one of the confirmed OE cross-reference numbers listed above; do not order by truck year and model alone.

Does this radiator feature an internal transmission or engine oil cooler?

No, this unit is engineered strictly without an internal oil cooler and is designed for trucks configured with external heat exchangers.

The International Severe-Duty Standard

Engineered for high-mileage line-haul and heavy vocational duty, this thermal component maintains steady operating temperatures under heavy gross combination weight ratings (GCWR) to prevent downtime and protect your engine investment.