Mishimoto Silicone Hose Kit

2015–2018 Ram 2500 / Ram 3500 6.7L Cummins

MMHOSE-RAM-15BK

Overview:

The Mishimoto Black Silicone Hose Kit is a premium upgrade designed specifically for the 2015–2018 Ram 2500 and Ram 3500 equipped with the 6.7L Cummins engine. This kit replaces the factory radiator hoses with durable, high-performance silicone components engineered to withstand the demanding conditions of heavy-duty diesel applications. Ideal for both stock and modified trucks, these hoses improve reliability and longevity, ensuring your cooling system performs optimally under heat and pressure.

Built to meet the rigorous standards of Cummins diesel engines, this hose kit offers enhanced durability over traditional rubber hoses, reducing the risk of leaks, cracks, and premature failure. Whether you’re towing, hauling, or pushing your Ram to its limits, Mishimoto’s silicone hoses provide peace of mind and superior cooling system integrity.

Key Features:

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

• Constructed from high-grade 4-ply silicone with embedded heat-resistant fibers for exceptional heat and pressure tolerance
• Includes both upper and lower main radiator hoses for a complete cooling system upgrade
• Internal spring reinforcement in the lower hose prevents collapse under vacuum conditions, maintaining coolant flow
• Available in black, blue, or red to match your vehicle’s style and personal preference
• Direct fitment for 2015–2018 Ram 2500 and Ram 3500 models with the 6.7L Cummins engine
• Resistant to oil, coolant, and environmental degradation for extended service life
• Improves cooling system reliability, especially under heavy load or high-temperature conditions
• Backed by the Mishimoto Lifetime Warranty for long-term confidence

Construction & Design:

The Mishimoto Silicone Hose Kit is crafted from premium 4-ply silicone reinforced with heat-resistant fibers, providing superior strength and flexibility compared to OEM rubber hoses. This multi-layer construction ensures excellent resistance to heat, pressure, and chemical exposure commonly encountered in diesel engine cooling systems. The hoses maintain their shape and integrity even under extreme thermal cycling and high boost conditions.

The lower radiator hose features an internal spring coil that prevents hose collapse during rapid coolant flow changes or vacuum conditions, a critical design element that mirrors the factory hose but with enhanced durability. Each hose is precision-molded to match the exact contours and dimensions of the stock hoses, ensuring a seamless, leak-free fit without the need for modifications.

Installation & Fitment:

Installation of the Mishimoto Silicone Hose Kit is straightforward and designed to be a direct replacement for the factory hoses on 2015–2018 Ram 2500 and Ram 3500 trucks with the 6.7L Cummins engine. No cutting, trimming, or additional modifications are required. The kit includes all necessary hoses to upgrade your cooling system’s primary radiator connections, making it an ideal maintenance or performance upgrade.

Professional installation is recommended to ensure proper hose routing and secure clamp placement, but experienced enthusiasts can complete the swap with basic hand tools and mechanical knowledge. Upgrading to silicone hoses helps prevent future coolant leaks and reduces the frequency of hose replacements.

What's Included:

• Upper radiator hose (silicone, black)
• Lower radiator hose with internal spring reinforcement (silicone, black)
• Installation instructions

Ideal For:

This Mishimoto Silicone Hose Kit is perfect for Ram 2500 and Ram 3500 owners who demand enhanced cooling system reliability and durability. It is especially beneficial for:

• Owners of stock or modified 6.7L Cummins trucks seeking a long-lasting upgrade
• Diesel enthusiasts who tow heavy loads or operate in high-temperature environments
• Drivers looking to prevent common coolant hose failures and maintain optimal engine temperatures
• Anyone wanting a professional-grade replacement with a lifetime warranty

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.