Wehrli Coolant Tank Kit

2019–2024 Ram 2500/3500 6.7L Diesel

Part #: WCF100284-GRY

Overview

The Wehrli Coolant Tank Kit is a premium replacement coolant reservoir designed specifically for 2019–2024 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. This fabricated aluminum coolant tank mounts directly in the OEM coolant tank location, offering a seamless upgrade over the factory clear plastic reservoir. It is engineered to enhance the engine bay’s appearance while providing superior durability and functionality.

Ideal for diesel truck enthusiasts who want to improve both the look and reliability of their cooling system, this kit delivers a clean, low-profile design that fits stock trucks without requiring any modifications. It is also compatible with stock and drop-in turbo setups, making it a versatile choice for a wide range of Cummins-powered Ram trucks.

Key Features

This coolant tank kit combines quality materials and thoughtful engineering to provide a reliable and visually appealing upgrade. Key features include:

• Fabricated from powder-coated aluminum for enhanced durability and corrosion resistance
• Custom grey finish that adds a sleek, professional look to the engine bay
• Black anodized CNC machined billet aluminum cap for a precision fit and stylish appearance
• Integrated coolant level sight glass for easy monitoring of coolant levels at a glance
• Low profile design eliminates the bulky engine side bracket found on stock tanks
• Improved clearance at the lower front edge of the tank assembly for better compatibility with aftermarket turbo setups
• Uses OEM mounting points for straightforward installation with basic hand tools
• Includes mounting hardware, overflow hose, and low coolant sensor for a complete replacement solution
• Direct replacement for MOPAR part number 68370066AC

Construction & Design

The Wehrli Coolant Tank Kit is expertly crafted from high-quality aluminum, chosen for its strength, lightweight properties, and resistance to heat and corrosion. The tank is powder coated in a durable grey finish that resists chipping and fading, ensuring long-lasting aesthetics and protection against harsh engine bay conditions.

The billet aluminum cap is CNC machined to exacting tolerances and anodized black for added corrosion resistance and a refined look. The inclusion of a clear sight glass allows for quick visual checks of coolant levels without removing the cap, enhancing convenience and safety.

The tank’s low-profile design removes the need for the stock plastic tank’s bulky engine side bracket, providing improved clearance and compatibility with aftermarket turbocharger systems. This thoughtful engineering ensures that the tank fits perfectly in the OEM location while accommodating performance upgrades.

Installation & Fitment

Designed as a direct OEM replacement, the Wehrli Coolant Tank Kit installs easily using the factory mounting points on 2019–2024 Ram 2500 and 3500 trucks with the 6.7L Cummins diesel engine. No additional modifications or custom fabrication are required, making installation straightforward for professional mechanics and experienced DIYers alike.

The kit includes all necessary mounting hardware, an overflow hose, and a low coolant sensor to ensure a complete and hassle-free swap. Installation requires only basic hand tools and can typically be completed in a short amount of time.

What's Included

• Powder-coated fabricated aluminum coolant tank (grey finish)
• Black anodized CNC machined billet aluminum cap
• Coolant level sight glass
• Mounting hardware
• 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 improves both aesthetics and functionality. It is especially suited for those running stock or drop-in turbo setups who require better clearance and a more robust cooling system component. Whether you are restoring your truck, enhancing its appearance, or preparing it for performance upgrades, the Wehrli Coolant Tank Kit offers a reliable and 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.