Radiator Coolant Silicone Hose Kit for Dodge Ram (2003-2010) 5.9L 6.7L Cummins Diesel

Heavy-Duty Radiator Coolant Silicone Hose Kit for 2003-2010 Dodge Ram (Cummins ISB)

Replaces failure-prone OEM rubber lines with high-temp, 3-ply reinforced silicone to ensure cooling system integrity under heavy towing loads.

The Stock Ram Cooling Weakness

The factory EPDM rubber hoses on the 3rd Gen Ram are subject to significant thermal degradation and "baking" within the cramped engine bay of the 5.9L and 6.7L Cummins. Over time, constant heat cycling leads to electrochemical degradation, causing the rubber to become brittle or excessively soft. In high-torque towing applications, internal pressures can exceed the structural capacity of weakened OEM walls, resulting in pinhole leaks or catastrophic bursts. Furthermore, exposure to engine oils and grime common in diesel environments accelerates the breakdown of standard rubber, risking a total cooling system failure when the engine is under peak stress.

The Engineering Solution

This silicone hose kit is engineered for extreme thermal environments, featuring a working temperature range from -65°F to +500°F. Constructed from 4.5mm thick, 3-ply polyester-reinforced silicone, these hoses offer superior structural rigidity compared to stock components. With a burst pressure rating of 245 PSI and a working pressure range of 0.3 to 0.9 Mpa, they are designed to handle the high-pressure surges of a heavy-duty cooling system. The smooth internal bore reduces flow turbulence, while the chemically resistant outer layer prevents degradation from oil and fuel contact. This is a critical upgrade for any Cummins owner looking to bulletproof their cooling system for long-haul reliability.

Technical Specifications

Compatibility

• 2003-2010 Dodge Ram 2500 5.9L Cummins Diesel
• 2003-2010 Dodge Ram 2500 6.7L Cummins Diesel
• 2003-2010 Dodge Ram 3500 5.9L Cummins Diesel
• 2003-2010 Dodge Ram 3500 6.7L Cummins Diesel

The Dodge Heavy-Duty Standard

When hauling heavy loads or navigating high-idle job sites, cooling system reliability is non-negotiable. This silicone upgrade ensures your Cummins stays on the road, providing the durability and heat rejection required for long-term heavy-duty operation and extreme towing conditions.