Mishimoto Silicone Radiator Hose Kit

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

Part #: MMHOSE-RAM-03DBK

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 durable, high-quality silicone hoses engineered to withstand extreme temperatures and pressures. Ideal for work trucks, heavy-duty applications, and performance builds, the Mishimoto hose kit enhances reliability and reduces the risk of coolant leaks and hose failures under demanding conditions.

With exact factory fitment, this kit offers a straightforward installation process without the need for modifications, making it a practical upgrade for owners seeking long-lasting cooling system performance and peace of mind.

Key Features

Engineered for durability and performance, the Mishimoto Silicone Radiator Hose Kit delivers several key benefits:

• Constructed from premium-grade silicone with four layers of heat-resistant fiber reinforcement for superior heat dissipation
• Higher pressure tolerance compared to standard rubber hoses, minimizing the risk of hose bursts
• Exceptional resistance to cracking, swelling, and deterioration over time
• Maintains exact factory OEM fitment for hassle-free, direct replacement installation
• Available in multiple colors including black, blue, and red to complement your vehicle’s style
• Designed specifically for Dodge Ram 2500, 3500, 4500, and 5500 trucks with 5.9L and 6.7L Cummins engines (2003–2010)
• Backed by Mishimoto’s industry-leading lifetime warranty for long-term reliability

Construction & Design

The Mishimoto hose kit is expertly crafted from a high-quality silicone compound reinforced with four layers of heat-resistant fibers. This multi-layer construction provides outstanding durability against heat, pressure, and environmental wear, far surpassing the lifespan of factory rubber hoses. Unlike OEM hoses that can degrade and become brittle over time, Mishimoto silicone hoses maintain flexibility and strength even after prolonged exposure to high engine temperatures.

Each hose is precision-molded to replicate the exact shape and dimensions of the original equipment, ensuring a perfect fit without trimming or adjustments. The smooth silicone interior surface promotes improved coolant flow and reduces the risk of buildup or blockages within the cooling system, supporting optimal engine temperature regulation.

Installation & Fitment

Installation of the Mishimoto Silicone Radiator Hose Kit is designed to be a direct, bolt-on replacement for the factory hoses. The kit fits all 2003–2010 Dodge Ram 2500 and 3500 trucks equipped with 5.9L and 6.7L Cummins diesel engines, as well as 4500 and 5500 models within the same years, ensuring broad compatibility without the need for modifications.

Standard hand tools are sufficient for installation, and the kit includes all necessary clamps and hardware for a secure and efficient setup. This upgrade is ideal for anyone looking to improve the cooling system’s reliability and longevity, whether for daily driving, heavy-duty work, or performance applications.

What's Included

• Complete set of silicone radiator hoses tailored for Dodge Ram 2500/3500/4500/5500 5.9L and 6.7L Cummins engines (2003–2010)
• All required clamps and fittings for secure installation
• Detailed installation instructions for easy reference

Ideal For

This Mishimoto Silicone Radiator Hose Kit is perfect for Dodge Ram owners who demand enhanced cooling system durability and performance. It is especially suited for:

• Work trucks subjected to heavy loads and extended operation
• Modified or performance trucks requiring higher pressure tolerance
• Owners seeking a long-lasting, maintenance-free cooling hose solution
• Anyone replacing aging or damaged factory rubber hoses with a superior alternative

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.