Mishimoto Silicone Radiator Hose Kit

2010–2012 Dodge / RAM 2500/3500 6.7L Cummins

Part #: MMHOSE-RAM-10DBL

Overview

The Mishimoto Silicone Radiator Hose Kit is a premium upgrade designed specifically for the 2010 to 2012 Dodge and RAM 2500/3500 trucks equipped with the 6.7L Cummins engine. This kit replaces the factory rubber upper and lower radiator hoses with durable, high-performance silicone hoses that offer enhanced reliability and longevity. Ideal for both stock and modified Cummins engines, this hose kit ensures your cooling system maintains optimal performance under demanding conditions.

Whether you’re tackling heavy-duty towing, off-road adventures, or daily driving, Mishimoto’s silicone hoses provide superior resistance to heat, pressure, and environmental degradation compared to OEM rubber hoses. This upgrade helps prevent common issues like hose swelling, cracking, or collapse, contributing to a more dependable cooling system and peace of mind on the road.

Key Features

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

• Constructed from high-grade 4-ply silicone with embedded heat-resistant fibers for exceptional thermal and pressure tolerance
• Includes both upper and lower radiator hoses tailored to fit the 6.7L Cummins engine in 2010–2012 Dodge/RAM 2500/3500 models
• Lower hose features an internal spring to prevent hose collapse under vacuum conditions, mirroring the stock design
• Resistant to oil, coolant, and environmental contaminants, reducing the risk of premature failure
• Available in vibrant blue, with additional color options in red and black for personalized engine bay styling
• Designed for a direct bolt-on installation with no modifications required
• Backed by the Mishimoto Lifetime Warranty, ensuring long-term quality and customer satisfaction

Construction & Design

The Mishimoto Silicone Radiator Hose Kit is crafted from premium-grade 4-ply silicone reinforced with heat-resistant fibers, providing superior strength and flexibility compared to traditional rubber hoses. This multi-layer construction allows the hoses to withstand extreme temperatures and pressures commonly experienced in heavy-duty diesel applications.

The lower radiator hose incorporates an internal spring coil, a critical design element that prevents hose collapse during high vacuum conditions, maintaining consistent coolant flow and system reliability. Each hose is precision-molded to match the exact contours and dimensions of the factory hoses, ensuring a perfect fit and seamless integration with the vehicle’s cooling system.

Installation & Fitment

This hose kit is engineered for a straightforward, direct replacement of the factory upper and lower radiator hoses on 2010–2012 Dodge and RAM 2500/3500 trucks powered by the 6.7L Cummins engine. No cutting, trimming, or additional modifications are necessary, making installation accessible for experienced DIYers and professional mechanics alike.

Simply remove the OEM hoses and install the Mishimoto silicone hoses using the existing clamps and mounting points. The kit’s precise fitment ensures a secure, leak-free connection that restores and enhances the cooling system’s performance.

What's Included

• One upper radiator hose (blue silicone)
• One lower radiator hose with internal spring (blue silicone)
• Installation instructions

Ideal For

This Mishimoto Silicone Radiator Hose Kit is perfect for Dodge and RAM 2500/3500 owners with 2010–2012 6.7L Cummins engines who want to improve their cooling system’s durability and reliability. It is especially beneficial for those who tow heavy loads, operate in extreme temperatures, or have modified their engine for increased performance. The kit also appeals to enthusiasts seeking a clean, customized look under the hood with the option of blue, red, or black hoses.

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.