Mishimoto Aluminum Degas Tank

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: MMRT-RAM-13N

Overview

The Mishimoto Aluminum Degas Tank is a premium cooling system upgrade designed specifically for the 2013–2018 Ram 2500 and 3500 models equipped with the 6.7L Cummins diesel engine. This high-quality degas tank replaces the factory plastic coolant expansion tank, addressing common issues such as limited durability and cloudiness. Engineered for diesel enthusiasts, especially those running large single-turbo setups, it provides additional clearance around the turbocharger while maintaining all stock functionality.

With its natural aluminum finish, this degas tank not only enhances the visual appeal of your engine bay but also improves heat dissipation for more efficient cooling. It is an ideal upgrade for owners seeking reliable, long-lasting coolant management that supports both daily driving and demanding performance applications.

Key Features

The Mishimoto Aluminum Degas Tank combines durable materials and thoughtful engineering to deliver a superior cooling solution for your Ram 6.7L Cummins diesel.

• Constructed from lightweight, corrosion-resistant aluminum for enhanced durability and improved heat dissipation
• Includes an OEM-quality coolant level sensor to maintain accurate low coolant warnings and dashboard alerts
• Internal baffling design prevents coolant slosh during off-road or rough road conditions, ensuring consistent coolant flow
• Designed with increased clearance to accommodate large single-turbo setups without the need for trimming or modification
• Natural aluminum finish offers a clean, custom look that complements any engine bay
• Direct bolt-on replacement for the factory degas tank with no modifications required
• Backed by Mishimoto’s Lifetime Warranty for long-term peace of mind

Construction & Design

This degas tank is precision-crafted from high-grade aluminum, chosen for its excellent thermal conductivity and resistance to corrosion. The natural finish highlights the quality of the material while providing a sleek, industrial appearance that integrates seamlessly into both stock and custom engine bays.

The tank features internal baffling engineered to stabilize coolant levels, reducing the risk of air pockets and ensuring consistent coolant circulation under all driving conditions. Special attention was given to the tank’s shape and mounting points to provide ample clearance around the turbocharger area, a common limitation with the stock plastic tank. This thoughtful design eliminates the need for trimming or modification, making it ideal for trucks equipped with larger aftermarket turbochargers.

Installation & Fitment

The Mishimoto Aluminum Degas Tank is a direct fit replacement for 2013–2018 Ram 2500 and 3500 models with the 6.7L Cummins diesel engine. Installation is straightforward and requires no special tools or modifications. The included OEM-quality coolant level sensor ensures seamless integration with the vehicle’s existing coolant monitoring system, preserving all factory warning functions.

This tank is perfect for owners looking to upgrade their cooling system with a durable, high-performance component that fits perfectly and functions flawlessly.

What's Included

• One Mishimoto Aluminum Degas Tank (Natural Finish)
• OEM-quality coolant level sensor installed
• Mounting hardware for direct bolt-on installation
• Installation instructions

Ideal For

This degas tank is ideal for Ram 6.7L Cummins owners who want to improve their truck’s cooling system reliability and appearance. It is especially suited for enthusiasts running large single-turbo setups who need additional clearance around the turbo area without compromising coolant system functionality. Whether you’re a daily driver, off-road adventurer, or diesel performance enthusiast, this tank offers a durable, high-quality solution to keep your engine running cool and efficiently.

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.