Mishimoto Aluminum Degas Tank

2013–2018 RAM 6.7L Cummins

MMRT-RAM-13MWBK

Overview:

The Mishimoto Aluminum Degas Tank is a premium cooling system upgrade designed specifically for the 2013 to 2018 RAM trucks equipped with the 6.7L Cummins engine. This high-quality degas tank replaces the factory plastic expansion tank, offering enhanced durability and improved coolant management. It is engineered to maintain all stock tank functionalities while providing superior performance and reliability for diesel enthusiasts and heavy-duty truck owners.

Ideal for those who demand more from their cooling system, this degas tank eliminates the common issue of unclear coolant levels caused by dirty or opaque factory tanks. It includes an OEM-quality coolant level sensor to ensure accurate low coolant warnings on your dashboard. Additionally, the internal baffling design keeps coolant stable and properly distributed, even on rough terrain or during aggressive driving.

For owners running large single-turbo setups, the Mishimoto degas tank offers critical clearance that the stock tank lacks, preventing interference with turbo components without requiring any trimming or modifications.

Key Features:

Engineered for durability and performance, the Mishimoto Aluminum Degas Tank includes the following key features:

• Constructed from lightweight, corrosion-resistant aluminum for long-lasting durability
• Micro-wrinkle black powder coat finish for a stealthy, custom appearance
• OEM-quality coolant level sensor included for accurate dashboard alerts
• Internal baffling to prevent coolant sloshing and maintain consistent fluid levels
• Designed to provide ample clearance for big single-turbo setups without trimming
• Direct bolt-on replacement for the factory plastic expansion tank
• Improves cooling system reliability under heavy-duty and off-road conditions
• Backed by Mishimoto’s Lifetime Warranty for peace of mind

Construction & Design:

The Mishimoto degas tank is crafted from high-grade aluminum, chosen for its excellent heat dissipation properties and resistance to corrosion compared to plastic. The tank’s robust construction ensures it withstands the harsh conditions often encountered by diesel trucks, including extreme temperatures and vibrations.

The micro-wrinkle black powder coat finish not only adds a sleek, professional look but also provides an additional protective layer against wear and environmental damage. Internally, the tank features strategically placed baffling to keep coolant stable, preventing air pockets and ensuring consistent coolant flow throughout the system.

Installation & Fitment:

This degas tank is designed as a direct replacement for the stock expansion tank on 2013–2018 RAM trucks with the 6.7L Cummins engine. Installation is straightforward and requires no modifications or trimming, even for trucks equipped with large single-turbo setups. The included OEM-quality coolant level sensor integrates seamlessly with the vehicle’s existing wiring harness, maintaining all factory warning functions.

Installation can typically be completed with basic hand tools and does not require specialized equipment, making it accessible for both professional mechanics and experienced DIY enthusiasts.

What's Included:

• Mishimoto Aluminum Degas Tank (Micro-Wrinkle Black Finish)
• OEM-quality coolant level sensor
• All necessary mounting hardware
• Installation instructions

Ideal For:

This degas tank is perfect for RAM 6.7L Cummins owners who want to upgrade their cooling system with a durable, high-performance component. It is especially suited for:

• Diesel truck enthusiasts seeking improved coolant management and reliability
• Owners running large single-turbo setups requiring additional clearance
• Drivers who frequently tow or haul heavy loads and need enhanced cooling stability
• Those looking to replace aging or damaged factory plastic expansion tanks
• Anyone wanting a clean, custom look under the hood with a micro-wrinkle black finish

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.