Performance Radiator for Dodge Ram 2500 3500 4500 5500 (2003-2009) 5.9L 6.7L

Heavy-Duty Performance Radiator for 2003-2009 Dodge Ram 2500, 3500, 4500, 5500

Upgrades the restrictive factory cooling system with a high-capacity dual-row aluminum core to lower coolant temperatures during heavy towing and elevated engine loads.

The Stock Dodge Ram Cooling Limitations

The OEM plastic-tank radiators equipped in the 2003-2009 Ram trucks are prone to thermal fatigue, leading to cracked end tanks and catastrophic coolant leaks. Furthermore, under strenuous conditions like towing heavy payloads up steep grades or operating in hot climates, the factory single-row core lacks the volumetric efficiency required to adequately dissipate the massive heat load generated by the 5.9L and 6.7L Cummins turbodiesel engines. This thermal bottleneck results in localized heat soak, compromised engine efficiency, and elevated operating temperatures that can eventually threaten head gasket integrity.

The Engineering Solution

This heavy-duty aluminum radiator mitigates factory weaknesses by introducing a precision-TIG-welded, all-aluminum construction that completely eliminates failure-prone plastic end tanks and crimped rubber gaskets. Featuring an oversized 2-row core measuring 26.97 inches wide by 28.14 inches high with a 1.34-inch thickness, it increases overall cooling capacity by approximately 30 percent over the OEM unit. The enhanced tube-and-fin design optimizes airflow dynamics across the surface area, maximizing heat transfer away from the engine. Direct-fit 1.97-inch inlet and outlet connections ensure seamless integration with the factory hoses, yielding stabilized coolant temperatures and sustained reliability under extreme diesel workloads.

Technical Specifications

Compatibility

• 2003-2009 Dodge Ram 2500 5.9L & 6.7L (Manual Transmission Only)
• 2003-2009 Dodge Ram 3500 5.9L & 6.7L (Manual Transmission Only)
• 2008-2009 Dodge Ram 4500 6.7L (Manual Transmission Only)
• 2008-2009 Dodge Ram 5500 6.7L (Manual Transmission Only)

The Dodge Ram Heavy Duty Standard

Engineered for heavy-duty applications, this radiator ensures your Ram truck maintains peak cooling performance, allowing you to tow maximum payloads with confidence and relentless durability.