Mishimoto Silicone Radiator Hose Kit

2015–2018 Ram 2500 / Ram 3500 6.7L Cummins

MMHOSE-RAM-15RD

Overview:

The Mishimoto Silicone Radiator Hose Kit is a premium upgrade designed specifically for the 2015 to 2018 Ram 2500 and Ram 3500 models equipped with the 6.7L Cummins engine. This kit replaces the factory rubber radiator hoses with durable, high-performance silicone hoses engineered to withstand extreme heat and pressure. Ideal for both stock and modified Cummins trucks, this hose kit enhances cooling system reliability and longevity, ensuring your engine stays protected under demanding conditions.

Whether you’re tackling heavy-duty towing, off-road adventures, or daily driving, Mishimoto’s silicone hoses provide a dependable solution that outperforms OEM components. Backed by the Mishimoto Lifetime Warranty, this kit offers peace of mind along with superior quality.

Key Features:

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

• Constructed from high-grade 4-ply silicone with embedded heat-resistant fibers for exceptional thermal and pressure resistance
• Includes both upper and lower radiator hoses to fully replace factory components
• Lower hose features an internal spring to prevent collapse under vacuum conditions, mirroring factory design
• Available in vibrant red, as well as black and blue, to match or accent your engine bay
• Resistant to cracking, swelling, and degradation common with rubber hoses over time
• Designed specifically for the 6.7L Cummins engine in Ram 2500 and 3500 trucks from 2015 to 2018
• Improves coolant flow reliability, reducing risk of overheating during heavy use
• Backed by Mishimoto’s industry-leading Lifetime Warranty for long-term confidence

Construction & Design:

The Mishimoto radiator hoses are crafted from premium 4-ply silicone reinforced with embedded heat-resistant fibers, providing superior strength and flexibility compared to standard rubber hoses. This multi-layer construction ensures excellent resistance to high temperatures and pressure fluctuations common in diesel cooling systems.

The lower radiator hose incorporates an internal spring coil to maintain shape and prevent collapse under vacuum, a critical feature for maintaining consistent coolant flow. Each hose is precision-molded to match the exact contours and fitment of the factory hoses, ensuring a seamless installation and leak-free performance.

Installation & Fitment:

Installation is straightforward with direct-fit design tailored for the 2015–2018 Ram 2500 and Ram 3500 trucks equipped with the 6.7L Cummins engine. The kit replaces the factory upper and lower radiator hoses without the need for modifications or additional adapters. Standard hand tools are sufficient for installation, making it accessible for experienced DIY enthusiasts and professional mechanics alike.

Always ensure the cooling system is fully drained and cooled before beginning installation to avoid injury or damage. Follow Mishimoto’s detailed instructions for best results and optimal hose longevity.

What's Included:

• Upper silicone radiator hose
• Lower silicone radiator hose with internal spring coil
• All necessary clamps and hardware for installation
• Installation instructions

Ideal For:

This silicone radiator hose kit is perfect for Ram 2500 and 3500 owners who demand enhanced cooling system durability and reliability. It is especially suited for:

• Owners upgrading or modifying their 6.7L Cummins diesel engines
• Drivers frequently towing heavy loads or operating in high-temperature environments
• Off-road enthusiasts seeking robust cooling components
• Anyone looking to replace aging, cracked, or leaking factory radiator hoses with a long-lasting 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.