Radiator for International 4100 (2007-2009)

Heavy-Duty Direct Replacement Radiator for 2007-2009 International 4100 (DuraStar)

What it Does: The 2-Row Replacement Radiator restores critical thermal rejection for 2007-2009 International 4100 trucks by replacing degraded or clogged OEM assemblies to eliminate severe overheating under heavy commercial hauling cycles.

The Stock International 4100 Radiator Failure Points

Commercial stop-and-go fleet duty subjects the DuraStar cooling circuit to aggressive thermal cycling and mechanical vibration. Factory units commonly fail at the crimped header-to-tank seams where composite plastic end tanks become brittle, causing micro-fractures, coolant blow-by, and catastrophic pressure loss. Additionally, particulate and silicate build-up inside narrow factory tube passages reduces heat transfer efficiency, leading to rapid coolant temperature spikes that compromise cylinder head integrity and overheat the transmission circuit on the MaxxForce 7 platform.

The Engineering Solution

This heavy-duty cross-flow radiator features a dual-row T-6061 aluminum tube-and-fin core engineered to optimize thermal conductivity and fluid velocity. High-strength reinforced polymer tanks handle extreme hydraulic shock loads without weeping, while precision-stamped header plates ensure structural rigidity against chassis torsion. An integrated high-efficiency transmission oil cooler stabilizes automatic transmission operating temperatures during heavy stop-and-go commercial routes. Factory-dimensioned 2-1/4 inch inlet and outlet necks and OEM-indexed mounting points permit a direct drop-in installation without shroud or bracket modification.

What's Included

• 1x Aluminum 2-Row Radiator with Integrated Transmission Oil Cooler

Technical Specifications

Compatibility

• 2007-2009 International 4100 Base Medium Duty
• 2004-2007 Ford F-650 Commercial (verify core measurements and neck layout prior to ordering)
• 2004-2007 Ford F-750 Commercial (verify core measurements and neck layout prior to ordering)

Frequently Asked Questions & Fitment Warnings

Does this fit the DuraStar 4100?

Yes, this is a direct fit for the 2007-2009 International 4100 equipped with the MaxxForce 7 diesel engine, using standard OEM mount locations.

Do I need to bleed the cooling system after replacement?

Yes, complete system purging and thermal burping are required to eliminate air pockets around the cylinder heads and EGR coolers prior to returning the truck to service.

The International Commercial Standard

Built for vocational durability, this radiator assembly provides continuous heat transfer stability under heavy payload cycles, steep grade hauling, and harsh industrial fleet operating conditions.