Wehrli Aluminum Coolant Tank Kit

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100628-GRY

Overview

The Wehrli Aluminum Coolant Tank Kit is a premium replacement for the factory coolant reservoir on 2013 to 2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. Designed to mount directly in the OEM coolant tank location, this fabricated aluminum tank offers a durable and visually appealing upgrade over the standard clear plastic reservoir. It is ideal for diesel enthusiasts looking to enhance their engine bay aesthetics while maintaining reliable cooling system performance.

This kit is engineered for both stock and modified trucks, providing additional clearance for larger aftermarket turbochargers and compound turbo setups without requiring any modifications to the vehicle’s mounting points. The powder-coated finish in WCFab Grey adds a sleek, custom look that complements the rugged style of Ram diesel trucks.

Key Features

Built with precision and functionality in mind, the Wehrli Aluminum Coolant Tank Kit includes several standout features:

• Fabricated aluminum construction for superior strength and durability compared to plastic reservoirs
• Custom powder-coated WCFab Grey finish for corrosion resistance and enhanced engine bay appearance
• Clear sight glass integrated into the tank for easy coolant level monitoring
• Black anodized CNC machined billet aluminum cap for a premium, secure seal
• Direct OEM mounting using factory mounting points—no drilling or modifications required
• Includes mounting hardware, overflow hose, and low coolant sensor for a complete installation
• Compatible with stock and drop-in turbochargers, as well as larger aftermarket and compound turbo setups
• Designed to fit perfectly in the factory coolant tank location for a clean, professional installation

Construction & Design

This coolant tank is expertly fabricated from high-quality aluminum, chosen for its excellent heat dissipation properties and resistance to cracking or warping under extreme engine bay temperatures. The powder-coated finish not only protects against corrosion but also provides a refined, matte grey appearance that enhances the overall look of the engine compartment.

The inclusion of a sight glass allows for quick visual checks of coolant levels without opening the cap, improving convenience and safety. The billet aluminum cap is CNC machined and anodized black, ensuring a tight seal and long-lasting durability. Every aspect of the tank’s design focuses on combining functionality with a clean, custom aesthetic.

Installation & Fitment

Installation is straightforward and designed to be completed with basic hand tools. The tank mounts directly to the OEM coolant tank location using factory mounting points, eliminating the need for any drilling, cutting, or additional modifications. This ensures a secure fit and maintains the integrity of the vehicle’s original cooling system setup.

The kit is compatible with stock Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine from model years 2013 through 2018. It also accommodates trucks with aftermarket turbochargers, including larger and compound turbo configurations, by providing additional clearance in the engine bay.

What's Included

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

Ideal For

This coolant tank kit is perfect for Ram 2500 and 3500 diesel owners who want to upgrade their engine bay with a durable, high-quality coolant reservoir that offers both improved aesthetics and practical benefits. It is especially suited for enthusiasts running aftermarket turbochargers or those seeking a more robust and visually appealing alternative to the factory plastic tank.

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.