Wehrli Aluminum Upper Coolant Pipe

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100517-BR

Overview

The Wehrli Aluminum Upper Coolant Pipe is a direct replacement for the OEM rubber upper coolant hose found on 2013 to 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 powder coated in a vibrant Bengal Red finish, adding a touch of style under the hood while providing superior resistance to heat and wear. This part is engineered for use with the OEM Ram radiator to ensure proper fitment and optimal cooling system performance.

Ideal for diesel truck owners looking to upgrade their cooling system components, the Wehrli Aluminum Upper Coolant Pipe offers enhanced longevity and a clean, professional appearance. It is especially suited for those who want to avoid the common issues associated with rubber hoses such as cracking, swelling, or premature failure.

Key Features

Built to meet the demands of heavy-duty diesel applications, this upper coolant pipe offers several key benefits:

• Direct OEM replacement for the upper radiator hose on 2013–2018 Ram 2500/3500 6.7L Cummins trucks
• Constructed from high-quality aluminum for superior strength and heat resistance
• Powder coated in Bengal Red for corrosion protection and enhanced engine bay aesthetics
• Improves cooling system reliability by eliminating the weaknesses of rubber hoses
• Compatible with OEM Ram radiators to ensure precise fitment and sealing
• Replaces multiple MOPAR part numbers including 68166469AC, 68166469AA, 68166469AB, and others
• Resistant to swelling, cracking, and deterioration caused by heat and coolant exposure
• Easy to clean and maintain compared to rubber hoses

Construction & Design

This upper coolant pipe is expertly crafted from lightweight yet durable aluminum, chosen for its excellent thermal conductivity and resistance to corrosion. The aluminum construction helps dissipate heat more effectively than rubber, contributing to a more stable cooling system temperature. The pipe is precision-engineered to match the exact dimensions and mounting points of the OEM hose, ensuring a seamless fit without modifications.

The powder-coated Bengal Red finish not only enhances corrosion resistance but also adds a striking visual upgrade to the engine compartment. This coating is designed to withstand harsh under-hood conditions, including exposure to heat, moisture, and road debris.

Installation & Fitment

Installation is straightforward and designed to be a direct swap with the factory rubber upper coolant hose. No special tools or modifications are required when used with the OEM Ram radiator. It is important to note that aftermarket radiators with different inlet locations may cause fitment issues, so this part is recommended for use with factory radiators only.

Replacing the upper coolant pipe with this aluminum version can be completed with basic mechanical skills and standard hand tools. It is advisable to drain the coolant system before removal to prevent spills and to inspect all clamps and seals during installation for optimal performance.

What's Included

• One Wehrli Aluminum Upper Coolant Pipe in Bengal Red
• All necessary mounting hardware and clamps (if applicable)
• Installation instructions

Ideal For

This aluminum upper coolant pipe is perfect for Ram 2500 and 3500 owners who demand enhanced durability and reliability from their cooling system components. It is especially beneficial for those who frequently tow, haul heavy loads, or operate in extreme conditions where factory rubber hoses may fail prematurely. Additionally, enthusiasts looking to upgrade their engine bay appearance with a quality, color-matched component will appreciate the Bengal Red 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.