Wehrli Coolant Tank Kit

2019–2024 Ram 2500/3500 6.7L Diesel

Part #: WCF100284-GB

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, providing a seamless upgrade that enhances both the appearance and functionality of your engine bay. Ideal for diesel truck owners who want to replace the standard clear plastic reservoir with a durable, stylish, and highly functional component.

Engineered to fit stock trucks without requiring any modifications, this kit offers a clean, low-profile design that improves clearance around the turbo area, making it fully compatible with stock and drop-in turbo setups. It’s a perfect blend of form and function for enthusiasts seeking a reliable and visually appealing coolant tank solution.

Key Features

This coolant tank kit combines quality materials and thoughtful engineering to deliver superior performance and aesthetics. Key features include:

• Fabricated from powder-coated aluminum for enhanced durability and corrosion resistance
• Gloss black finish that adds a sleek, custom look to the engine bay
• Includes a black anodized CNC machined billet aluminum cap for a premium touch
• Integrated coolant level sight glass for easy monitoring of fluid levels
• Uses OEM mounting points for a direct bolt-on installation with no modifications
• 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 turbo compatibility
• Includes mounting hardware, overflow hose, and low coolant sensor for a complete upgrade
• Replaces MOPAR part number 68370066AC

Construction & Design

The Wehrli Coolant Tank Kit is expertly crafted from high-quality fabricated aluminum, chosen for its strength, lightweight properties, and resistance to heat and corrosion. The powder-coated gloss black finish not only protects the tank from environmental damage but also enhances the visual appeal of the engine bay. The billet aluminum cap is CNC machined and anodized black, ensuring a precise fit and long-lasting durability.

The design incorporates a clear sight glass that allows for quick and accurate coolant level checks without opening the cap, reducing the risk of contamination or spills. The tank’s low-profile shape removes the need for the stock plastic tank’s bulky engine side bracket, providing improved clearance and compatibility with aftermarket turbochargers and other engine modifications.

Installation & Fitment

Installation is straightforward and user-friendly, requiring only basic hand tools. The tank mounts using the original equipment manufacturer’s mounting points, ensuring a secure and exact fit on 2019–2024 Ram 2500 and 3500 trucks with the 6.7L Cummins diesel engine. No additional modifications or custom fabrication are necessary, making this an ideal upgrade for both professional installers and DIY enthusiasts.

The kit is fully compatible with stock and drop-in turbo setups, thanks to its low-profile design that improves clearance around the turbo area compared to the stock plastic reservoir.

What's Included

• Fabricated aluminum coolant tank with gloss black powder coat 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 offers improved aesthetics and functionality. It is especially suited for diesel enthusiasts 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, this coolant tank kit delivers 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.