Mishimoto Replacement Radiator Aluminum Core

2003–2009 Dodge Ram 2500 / 3500 5.9L & 6.7L Diesel

Part #: R2711-MT

Overview

The Mishimoto Replacement Radiator is a direct OEM replacement designed specifically for Dodge Ram 2500 and 3500 trucks equipped with 5.9L and 6.7L Cummins diesel engines from 2003 through 2009. Engineered to restore your vehicle’s cooling system to peak performance, this radiator addresses common issues found in aging stock units such as leaks, clogs, and cracked plastic components. Whether you are replacing a failed radiator or upgrading to maintain reliable cooling under heavy-duty conditions, this Mishimoto radiator offers a durable and precise fit without requiring any modifications.

Built to meet or exceed factory specifications, it ensures consistent cooling efficiency to protect your engine from overheating during towing, hauling, or demanding daily driving. Backed by Mishimoto’s industry-leading Lifetime Warranty, this radiator provides long-term peace of mind and dependable performance for your heavy-duty Dodge Ram truck.

Key Features

This Mishimoto radiator combines high-quality materials and expert engineering to deliver reliable cooling performance tailored for Dodge Ram 2500 and 3500 diesel trucks. Key features include:

• Direct OEM replacement with guaranteed perfect fitment—no bending, cutting, or modifications required
• Durable aluminum core for superior heat dissipation and long-lasting performance
• OEM-spec plastic end tanks engineered to resist cracking and withstand clamp pressure and thermal cycling
• Designed specifically for 2003–2009 Dodge Ram 2500 and 3500 Cummins diesel models
• Prevents common radiator failures such as leaks, clogs, and cracked plastic inlets/outlets
• Maintains factory cooling capacity to protect your engine under heavy loads and extreme conditions
• Corrosion-resistant construction extends service life and reliability
• Backed by Mishimoto’s Lifetime Warranty for long-term durability

Construction & Design

The Mishimoto Replacement Radiator features a robust aluminum core that offers superior thermal conductivity compared to traditional copper or brass cores. This design ensures rapid heat transfer away from the engine coolant, maintaining optimal operating temperatures even during heavy towing or hauling. The plastic end tanks are manufactured to precise OEM specifications, providing a secure fit and resistance to cracking or warping caused by constant clamp pressure and heat cycles.

Every radiator undergoes rigorous quality control to meet or exceed factory standards, ensuring durability and reliability. The combination of lightweight aluminum and high-quality plastic components balances weight savings with structural integrity, making this radiator an ideal upgrade or replacement for your Dodge Ram’s cooling system.

Installation & Fitment

Installation of the Mishimoto Replacement Radiator is straightforward and designed as a direct swap with your factory unit. No modifications such as bending, cutting, or drilling are necessary. It fits perfectly into existing mounting points and connects seamlessly with your vehicle’s original hoses and clamps. This radiator is compatible with a wide range of Dodge Ram 2500 and 3500 models from 2003 through 2009, including trims such as Laramie, SLT, Sport, ST, SXT, and TRX4.

Whether you are performing routine maintenance or repairing damage caused by leaks or cracks, this radiator ensures a hassle-free installation process that saves time and effort.

What's Included

• Mishimoto Replacement Radiator with aluminum core and plastic end tanks
• Pre-installed fittings and mounting points for direct OEM compatibility
• Installation instructions

Ideal For

This radiator is ideal for Dodge Ram 2500 and 3500 owners who require a reliable, OEM-quality replacement for their aging or damaged stock radiator. It is perfect for:

• Heavy-duty truck owners who frequently tow or haul
• Drivers experiencing overheating or coolant leaks due to radiator failure
• Anyone seeking a durable, long-lasting cooling solution with guaranteed fitment
• Enthusiasts who want to maintain factory cooling performance without compromise

Compatible Vehicles

• 2003–2007 Dodge Ram 2500 5.9L Diesel
• 2003–2007 Dodge Ram 3500 5.9L Diesel
• 2007–2009 Dodge Ram 2500 6.7L Diesel
• 2007–2009 Dodge Ram 3500 6.7L Diesel
• 2008–2009 Dodge Ram 1500 6.7L Diesel

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.