Wehrli Aluminum Upper Coolant Pipe

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100517-BRZ

Overview

The Wehrli Aluminum Upper Coolant Pipe is a premium replacement part designed specifically for 2013 to 2018 Ram 2500 and 3500 heavy-duty trucks equipped with the 6.7L Cummins diesel engine. This high-quality aluminum pipe replaces the factory rubber upper coolant hose that connects to the radiator inlet, providing enhanced durability and reliability under demanding conditions. Ideal for diesel truck owners looking to upgrade their cooling system components, this pipe offers improved resistance to heat, pressure, and wear compared to OEM rubber hoses.

Finished in a vibrant Brizzle Blue powder coat, this coolant pipe not only delivers superior performance but also adds a custom aesthetic touch to your engine bay. It is engineered for use with the original equipment manufacturer (OEM) RAM radiator, ensuring a precise fit and seamless integration with your truck’s cooling system.

Key Features

Designed to meet the rigorous demands of heavy-duty diesel trucks, the Wehrli Aluminum Upper Coolant Pipe offers the following key features:

• Direct replacement for OEM rubber upper coolant hose on 2013–2018 Ram 2500/3500 6.7L Cummins
• Constructed from lightweight, corrosion-resistant aluminum for long-lasting durability
• Powder coated in Brizzle Blue for enhanced corrosion protection and a striking appearance
• Precision engineered to fit OEM RAM radiators without modification
• Improves coolant flow reliability by eliminating the risk of rubber hose swelling or cracking
• Compatible with factory coolant system components for hassle-free installation
• Replaces multiple MOPAR part numbers including 68166469AC, 68166469AA, 68166469AB, and others
• Ideal for trucks without dual radiators or twin CP3 fuel pumps (non-13-15 dual rads/twin CP3)

Construction & Design

The upper coolant pipe is crafted from high-grade aluminum, chosen for its excellent thermal conductivity and resistance to corrosion. This material ensures the pipe withstands the high temperatures and pressures typical of diesel engine cooling systems. The aluminum construction also reduces the risk of hose failure common with OEM rubber parts, which can degrade over time due to heat exposure and engine vibrations.

Each pipe is precision-machined to match OEM dimensions, guaranteeing a perfect fit with the factory radiator inlet. The durable powder coat finish not only protects the pipe from environmental elements but also adds a visually appealing finish that complements the engine bay’s appearance.

Installation & Fitment

Installation is straightforward and designed to be a direct swap with the factory rubber upper coolant hose on 2013–2018 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine. No modifications are required when used with the OEM RAM radiator. However, fitment may vary if aftermarket radiators are installed, as inlet locations can differ from factory specifications.

Standard hand tools are sufficient for installation, making this an accessible upgrade for professional mechanics and experienced DIY enthusiasts alike. Replacing the rubber hose with this aluminum pipe enhances the reliability of your cooling system and reduces the likelihood of coolant leaks or hose failures.

What's Included

• One Wehrli Aluminum Upper Coolant Pipe, powder coated in Brizzle Blue
• All necessary clamps and mounting hardware for installation (if applicable)
• Installation instructions

Ideal For

This aluminum upper coolant pipe is ideal for Ram 2500 and 3500 owners who demand enhanced durability and reliability from their cooling system components. It is especially suited for those who frequently tow, haul heavy loads, or operate their trucks in extreme conditions where OEM rubber hoses may fail prematurely. Additionally, enthusiasts looking to add a custom touch to their engine bay will appreciate the vibrant Brizzle Blue finish.

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.