Mishimoto Replacement Radiator Hose Kit

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

Part #: MMHOSE-RAM-03DE

Overview

The Mishimoto Replacement Radiator Hose Kit is a precision-engineered cooling system upgrade designed specifically for Dodge Ram 2500 and 3500 trucks equipped with the 5.9L and 6.7L Cummins diesel engines from 2003 through 2010. This kit offers a direct-fit solution to replace worn, cracked, or leaking factory hoses, restoring your truck’s cooling system reliability and performance.

Whether your Ram is a hardworking daily driver or a heavy-duty workhorse, Mishimoto’s OEM-quality hoses ensure consistent coolant flow and help maintain optimal engine temperatures. Backed by Mishimoto’s Lifetime Warranty, this hose kit provides peace of mind and long-term durability for your diesel-powered Ram.

Key Features

Engineered for durability and exact fitment, this replacement hose kit delivers reliable cooling system performance under demanding conditions. Key features include:

• Direct-fit hoses designed specifically for 2003–2010 Dodge Ram 2500 and 3500 with 5.9L and 6.7L Cummins engines
• Constructed from OEM-quality rubber compounds for superior resistance to heat, pressure, and coolant chemicals
• Includes both front and rear radiator hoses for a complete cooling system restoration
• Engineered to maintain proper coolant flow and prevent leaks or ruptures during heavy-duty use
• Resists cracking, swelling, and premature wear common in aging factory hoses
• Maintains factory fitment and appearance for seamless installation without modifications
• Backed by Mishimoto’s Lifetime Warranty for long-term reliability and customer confidence

Construction & Design

The Mishimoto Replacement Radiator Hose Kit is manufactured using premium-grade rubber compounds that meet or exceed original equipment specifications. These materials provide excellent flexibility and strength, allowing the hoses to withstand the high temperatures and pressures typical of diesel engine cooling systems.

Each hose is internally reinforced to resist collapse and externally designed to withstand abrasion and harsh environmental conditions. Precision molding ensures the hoses match the exact contours and dimensions of the factory components, guaranteeing a secure, leak-free fit that supports optimal coolant circulation and engine protection.

Installation & Fitment

Installation is straightforward and designed as a direct swap for the original hoses, requiring no special tools or modifications. Simply remove the old, damaged hoses and replace them with the Mishimoto components, ensuring all clamps and connections are securely tightened for a leak-free seal.

This kit fits all 2003 through 2010 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L or 6.7L Cummins diesel engines, making it a reliable and hassle-free upgrade to maintain your cooling system’s integrity.

What's Included

• Front radiator hose
• Rear radiator hose
• All necessary clamps and fittings (if applicable)
• Installation instructions

Ideal For

This replacement hose kit is ideal for Dodge Ram owners who need to restore or maintain their cooling system’s performance. It is especially suited for:

• Work trucks subjected to heavy-duty use and demanding conditions
• Daily drivers requiring reliable and durable cooling system components
• Owners looking to replace aging, cracked, or leaking factory hoses
• Anyone seeking a high-quality, lifetime-backed replacement hose solution for their diesel Ram

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.