Wehrli Aluminum Upper Coolant Pipe

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100517-BC

Overview

The Wehrli Aluminum Upper Coolant Pipe is a direct replacement for the OEM rubber upper coolant hose on 2013–2018 Ram 2500 and 3500 Heavy Duty trucks equipped with the 6.7L Cummins diesel engine. Designed to improve durability and reliability, this aluminum pipe replaces the factory rubber hose that connects to the radiator inlet. It is an ideal upgrade for owners seeking a long-lasting, corrosion-resistant cooling system component that maintains OEM fitment and function.

Powder coated in a distinctive bronze chrome finish, this upper coolant pipe not only enhances engine bay aesthetics but also provides superior resistance to heat and environmental wear. It is engineered specifically for use with the OEM RAM radiator to ensure proper fitment and optimal coolant flow.

Key Features

Built to meet the demands of heavy-duty diesel applications, the Wehrli Aluminum Upper Coolant Pipe offers several key benefits:

• Direct OEM replacement for the upper radiator coolant hose
• Constructed from high-quality aluminum for enhanced strength and heat dissipation
• Powder coated in bronze chrome for corrosion resistance and a sleek appearance
• Designed to fit 2013–2018 Ram 2500 and 3500 trucks with 6.7L Cummins diesel engines
• Compatible with OEM RAM radiators to ensure proper inlet alignment
• Replaces multiple MOPAR part numbers including 68166469AC, 68166469AA, and others
• Eliminates the risk of rubber hose swelling, cracking, or failure under high temperatures
• Maintains factory coolant flow and system pressure for reliable engine cooling

Construction & Design

This upper coolant pipe is precision-engineered from lightweight, durable aluminum, offering superior thermal conductivity compared to rubber hoses. The aluminum construction helps dissipate heat more effectively, reducing the risk of coolant overheating and hose degradation. The bronze chrome powder coat finish provides an extra layer of protection against corrosion, road debris, and harsh underhood conditions, ensuring long-term reliability.

The pipe’s design closely follows OEM dimensions and mounting points, allowing for a seamless swap without modifications. Its rigid structure prevents collapse or deformation that can occur with aging rubber hoses, maintaining consistent coolant flow and system integrity.

Installation & Fitment

Installation is straightforward and requires no special tools beyond standard hand tools. The Wehrli Aluminum Upper Coolant Pipe is designed as a direct bolt-on replacement for the factory upper radiator hose on 2013–2018 Ram 2500 and 3500 trucks with the 6.7L Cummins engine. It is important to note that this pipe is intended for use with OEM RAM radiators; aftermarket radiators with different inlet locations may cause fitment issues.

Simply remove the old rubber hose, clean the connection points, and install the aluminum pipe using the supplied hardware or existing clamps. This upgrade provides a durable, maintenance-free solution that enhances the cooling system’s reliability.

What's Included

• One Wehrli Aluminum Upper Coolant Pipe (Bronze Chrome finish)
• Installation hardware as required
• Instructions for proper fitment and installation

Ideal For

This product is perfect for Ram 2500 and 3500 owners who demand enhanced durability and reliability from their cooling system components. It is especially suited for enthusiasts, fleet operators, and diesel truck owners who want to eliminate the common failure points associated with rubber coolant hoses. Whether used for daily driving, towing, or heavy-duty work, the Wehrli Aluminum Upper Coolant Pipe offers a robust upgrade that maintains OEM performance while adding a custom look under the hood.

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.