Wehrli Aluminum Upper Coolant Pipe

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100517-GW

Overview

The Wehrli Aluminum Upper Coolant Pipe is a direct replacement for the OEM rubber upper coolant hose on 2013 to 2018 Ram 2500 and 3500 heavy-duty trucks equipped with the 6.7L Cummins diesel engine. Designed to connect the radiator inlet, this high-quality aluminum pipe offers a durable and long-lasting alternative to the factory rubber hose, which can degrade over time due to heat and pressure. Finished in a gloss white powder coat, it not only enhances engine bay aesthetics but also provides superior resistance to corrosion and wear.

This upgrade is ideal for Ram owners seeking improved reliability and a cleaner, more professional look under the hood. It is engineered for use with OEM Ram radiators to ensure proper fitment and function without modification.

Key Features

Engineered for durability and performance, the Wehrli Aluminum Upper Coolant Pipe offers the following benefits:

• 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 service life
• Gloss white powder-coated finish for enhanced appearance and protection
• Improves cooling system reliability by eliminating rubber hose degradation
• Maintains factory radiator inlet fitment for easy installation
• Replaces multiple MOPAR part numbers including 68166469AC, 68166469AA, 68166469AB, and others
• Compatible with OEM Ram radiators; aftermarket radiator fitment may vary
• Designed to withstand high engine bay temperatures and pressure fluctuations

Construction & Design

The upper coolant pipe is precision-crafted from high-grade aluminum, chosen for its excellent heat dissipation and resistance to corrosion compared to rubber hoses. The aluminum construction ensures the pipe maintains its shape and integrity under extreme thermal cycling and pressure conditions common in heavy-duty diesel applications. The gloss white powder coat finish not only adds a clean, professional look but also provides an additional protective layer against rust and environmental damage.

Each pipe is engineered to match the exact dimensions of the OEM part, ensuring a seamless fit with the factory radiator inlet and mounting points. This attention to detail guarantees reliable sealing and leak-free operation without the need for custom modifications.

Installation & Fitment

Installation of the Wehrli Aluminum Upper Coolant Pipe is straightforward and designed to be a direct bolt-on replacement for the factory rubber hose on 2013–2018 Ram 2500 and 3500 trucks with the 6.7L Cummins engine. No special tools or modifications are required when used with the OEM Ram radiator. Simply remove the old rubber hose and install the aluminum pipe using the existing clamps and mounting hardware.

Note that fitment with aftermarket radiators may vary if the radiator inlet location differs from factory specifications. It is recommended to verify compatibility before installation if using a non-OEM radiator.

What's Included

• One Wehrli Aluminum Upper Coolant Pipe, gloss white powder coated

Ideal For

This aluminum upper coolant pipe is perfect for Ram 2500 and 3500 owners who want to upgrade their cooling system components for improved durability and appearance. It is especially suited for those who frequently tow, haul heavy loads, or operate their trucks in demanding conditions where OEM rubber hoses may fail prematurely. Additionally, enthusiasts looking to enhance their engine bay aesthetics will appreciate the clean, gloss white 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.