Wehrli Aluminum Coolant Tank Kit

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100628-IBB

Overview

The Wehrli Aluminum Coolant Tank Kit in Illusion Blueberry is a premium upgrade designed specifically for 2013–2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. This fabricated aluminum coolant reservoir replaces the factory clear plastic tank, offering enhanced durability, improved aesthetics, and superior functionality. Ideal for diesel enthusiasts looking to dress up their engine bay while maintaining OEM fitment and reliability, this coolant tank kit provides a clean, custom look with practical benefits for daily driving and high-performance applications.

Engineered to mount in the original equipment manufacturer (OEM) coolant tank location, this kit requires no modifications to your truck. It is compatible with stock turbochargers as well as larger aftermarket and compound turbo setups, providing additional clearance where needed. The inclusion of a sight glass allows for easy coolant level monitoring, combining style with convenience.

Key Features

This coolant tank kit offers a range of features that enhance both form and function:

• Fabricated from high-quality aluminum for superior strength and heat dissipation
• Custom powder-coated finish in Illusion Blueberry for a striking engine bay appearance
• Clear sight glass integrated into the tank for quick and accurate coolant level checks
• Black anodized CNC machined billet aluminum cap for a precision fit and premium look
• Mounts using OEM mounting points, ensuring a direct bolt-on installation
• Includes all necessary mounting hardware, overflow hose, and low coolant sensor
• Compatible with stock and drop-in turbochargers, plus provides extra clearance for larger aftermarket turbo systems
• Resistant to cracking and discoloration common with plastic reservoirs
• Maintains proper coolant system function without requiring additional modifications

Construction & Design

The Wehrli coolant tank is expertly fabricated from lightweight, corrosion-resistant aluminum, offering a significant upgrade over the factory plastic reservoir. The aluminum construction not only enhances durability but also improves heat dissipation, helping to maintain optimal coolant temperatures under demanding conditions. The tank is finished with a custom powder coat in Illusion Blueberry, providing a vibrant, long-lasting color that resists fading and chipping.

Attention to detail is evident in the inclusion of a black anodized billet aluminum cap, CNC machined for precise tolerances and a secure seal. The integrated sight glass is strategically positioned for easy visibility, allowing drivers to monitor coolant levels at a glance without removing the cap. Overall, the design balances rugged functionality with refined aesthetics, making it a standout component in any Cummins-powered Ram.

Installation & Fitment

Installation of the Wehrli Aluminum Coolant Tank Kit is straightforward and designed for the enthusiast with basic hand tools. The tank mounts directly in the OEM coolant reservoir location using existing mounting points, eliminating the need for drilling or fabrication. All necessary hardware, including mounting brackets, overflow hose, and low coolant sensor, is included to ensure a seamless swap.

This kit fits 2013–2018 Ram 2500 and 3500 models equipped with the 6.7L Cummins diesel engine. It is compatible with stock turbochargers and drop-in replacements, as well as larger aftermarket and compound turbo setups, thanks to its additional clearance design. No other modifications are required, making it a convenient upgrade for both daily drivers and performance builds.

What's Included

• Fabricated aluminum coolant tank with Illusion Blueberry powder coat
• Black anodized CNC machined billet aluminum cap
• Mounting hardware kit
• Overflow hose
• Low coolant sensor

Ideal For

This coolant tank kit is perfect for Ram 2500 and 3500 owners who want to enhance the appearance and durability of their engine bay while maintaining OEM fitment and function. It is especially suited for diesel enthusiasts running stock or upgraded turbochargers who require additional clearance and a more robust coolant reservoir. Whether you are restoring your truck’s engine bay or upgrading for performance and reliability, this aluminum coolant tank offers a smart, stylish solution.

Wehrli Custom Fabrication (WCFab) is a diesel performance and metal fabrication specialist building upgraded hard parts and engineered solutions for Duramax, Cummins, and Power Stroke trucks. Known for high-quality fabrication and truck-focused product development, WCFab supports everything from tow rigs to race-oriented diesel builds where durability, airflow, and heat management matter.