Mishimoto Silicone Radiator Hose Kit

2003–2010 Dodge Ram 2500/3500 5.9L & 6.7L Diesel

Part #: MMHOSE-RAM-03DRD

Overview

The Mishimoto Silicone Radiator Hose Kit is a premium cooling system upgrade designed specifically for Dodge Ram 2500 and 3500 trucks equipped with 5.9L and 6.7L Cummins diesel engines from 2003 to 2010. This kit replaces the factory rubber hoses with high-quality silicone hoses that offer superior durability, enhanced heat resistance, and improved coolant flow. Whether your Ram is used for heavy-duty work or performance driving, these hoses provide reliable cooling system performance under demanding conditions.

Ideal for truck owners seeking to extend the life of their cooling system components, the Mishimoto silicone hoses resist cracking, swelling, and deterioration common with OEM rubber hoses. This upgrade ensures your engine stays cooler and runs more efficiently, even under high load or elevated temperatures.

Key Features

Engineered for durability and performance, the Mishimoto Silicone Radiator Hose Kit offers the following benefits:

• Constructed from high-grade silicone for superior heat resistance and flexibility
• Reinforced with four layers of heat-resistant fibers to withstand increased pressure
• Precision-molded for exact factory fitment, ensuring a seamless installation
• Available in vibrant red, with additional black and blue color options to match your vehicle’s style
• Resistant to cracking, swelling, and deterioration common in OEM rubber hoses
• Improves coolant flow and heat dissipation for enhanced engine cooling efficiency
• Includes Mishimoto’s industry-leading lifetime warranty for peace of mind

Construction & Design

The Mishimoto Silicone Radiator Hose Kit is expertly crafted from a premium silicone compound combined with four layers of heat-resistant fiber reinforcement. This multi-layer construction allows the hoses to endure extreme temperatures and high pressures without deforming or failing. The silicone material also provides excellent flexibility, which helps absorb engine vibrations and reduces stress on hose connections, extending the life of your cooling system.

Each hose is precision-molded to replicate the exact dimensions and contours of the original factory hoses, guaranteeing a perfect fit and straightforward installation without any modifications. The vibrant red color is achieved using durable pigments that resist fading and discoloration, maintaining a clean and professional appearance under the hood.

Installation & Fitment

Designed as a direct replacement for the factory rubber hoses, this Mishimoto Silicone Radiator Hose Kit installs quickly and easily on 2003–2010 Dodge Ram 2500 and 3500 trucks with 5.9L and 6.7L Cummins diesel engines. No special tools or modifications are required, making it an ideal upgrade for both professional mechanics and DIY enthusiasts. All hoses retain the original mounting points and connection sizes, ensuring a secure and leak-free fit.

This kit is compatible with both stock and modified cooling systems, providing versatility for a wide range of applications.

What's Included

• Complete set of front and rear silicone radiator hoses
• All necessary clamps and hardware for installation
• Detailed installation instructions
• Mishimoto lifetime warranty documentation

Ideal For

This silicone radiator hose kit is perfect for Dodge Ram owners who demand enhanced durability and performance from their cooling system components. It is especially suited for:

• Work trucks subjected to heavy-duty use and high engine loads
• Modified trucks with upgraded cooling or increased horsepower
• Enthusiasts looking to improve engine reliability and longevity
• Anyone seeking a long-lasting, maintenance-free cooling hose solution

Mishimoto is a performance cooling brand offering aluminum radiators, intercoolers, oil coolers, hoses, and supporting hardware built to manage heat on hard-driven street and track vehicles. For boosted setups and towing/off-road rigs alike, Mishimoto upgrades are designed to increase cooling capacity and reliability where factory systems can become a limitation.