Wehrli Aluminum Coolant Tank Kit

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100628-CAT

Overview

The Wehrli Aluminum Coolant Tank Kit is a premium upgrade designed specifically for 2013 to 2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. This fabricated aluminum coolant tank replaces the factory clear plastic reservoir, providing a durable, stylish, and functional solution that enhances the engine bay’s appearance while maintaining optimal cooling system performance.

Ideal for diesel enthusiasts and truck owners looking to improve both the aesthetics and reliability of their cooling system, this kit offers a direct bolt-on fitment using OEM mounting points, ensuring a hassle-free installation with no modifications required. It is compatible with stock turbochargers as well as larger aftermarket and compound turbo setups, making it a versatile choice for performance builds.

Key Features

This coolant tank kit combines quality materials and thoughtful engineering to deliver a superior replacement for the factory reservoir. Key features include:

• Fabricated from high-grade aluminum for enhanced durability and heat resistance
• Custom powder-coated finish in Cat Yellow for a distinctive, eye-catching look
• Integrated sight glass for easy coolant level monitoring without removing the cap
• Black anodized CNC machined billet aluminum cap for a secure, stylish seal
• Utilizes OEM mounting points for a straightforward, no-drill installation
• Includes mounting hardware, overflow hose, and low coolant sensor for complete functionality
• Compatible with stock and drop-in turbochargers, with extra clearance for larger aftermarket turbo systems
• Designed to fit perfectly in the factory coolant tank location, maintaining factory engine bay layout

Construction & Design

The Wehrli coolant tank is expertly fabricated from lightweight yet robust aluminum, offering superior resistance to cracking, warping, and discoloration compared to the stock plastic reservoir. The powder-coated Cat Yellow finish not only adds a vibrant, professional appearance but also provides excellent corrosion resistance to withstand harsh under-hood conditions.

The inclusion of a clear sight glass allows for quick visual checks of coolant levels, reducing the need to open the cap and risk contamination. The billet aluminum cap is precision CNC machined and anodized black, ensuring a tight seal and long-lasting durability. Every component is engineered to meet or exceed OEM standards, delivering reliable performance and longevity.

Installation & Fitment

Designed for a direct replacement of the factory coolant tank on 2013–2018 Ram 2500 and 3500 trucks with the 6.7L Cummins diesel engine, this kit installs easily using basic hand tools. It mounts using the original equipment manufacturer’s mounting points, requiring no drilling, cutting, or other modifications. The included hardware and overflow hose simplify the installation process, making it accessible for both professional mechanics and experienced DIY enthusiasts.

This tank is fully compatible with stock turbochargers and drop-in replacements, while also providing additional clearance for larger aftermarket and compound turbocharger setups, ensuring it fits a wide range of performance configurations.

What's Included

• Fabricated aluminum coolant tank with powder-coated Cat Yellow finish
• Black anodized CNC machined billet aluminum cap
• Mounting hardware for OEM fitment
• Overflow hose
• Low coolant sensor

Ideal For

This coolant tank kit is perfect for Ram 2500 and 3500 owners who want to upgrade their engine bay with a durable, high-quality coolant reservoir that combines style and function. It is especially suited for diesel performance enthusiasts running stock or upgraded turbochargers who require additional clearance and a reliable cooling system component. Additionally, those seeking to replace the factory plastic tank with a more robust and visually appealing solution will find this kit an excellent choice.

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.