Wehrli Upper Coolant Pipe

2013–2018 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100517-GM

Overview

The Wehrli 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 aluminum upper coolant pipe replaces the factory rubber hose that connects to the radiator inlet, offering a more durable and reliable solution for your truck’s cooling system. Ideal for owners seeking enhanced longevity and improved engine bay aesthetics, this pipe is powder coated in a sleek gun metal finish to resist corrosion and complement your engine compartment.

Built to fit OEM RAM radiators, this upper coolant pipe ensures a direct replacement without compromising fitment or function. It is a smart upgrade for those looking to eliminate the common issues associated with rubber hoses, such as swelling, cracking, or premature failure under high heat and pressure conditions.

Key Features

Engineered for durability and performance, the Wehrli Upper Coolant Pipe offers several key benefits:

• Constructed from lightweight, corrosion-resistant aluminum for long-lasting durability
• Powder coated in gun metal for enhanced corrosion protection and a clean, professional look
• Direct OEM replacement for the upper radiator hose on 2013–2018 Ram 2500 and 3500 6.7L Cummins trucks
• Compatible with factory RAM radiators to ensure proper fit and function
• Eliminates the risk of rubber hose failure caused by heat, pressure, and age
• Improves coolant flow reliability for consistent engine temperature management
• Replaces multiple MOPAR part numbers, ensuring broad compatibility with OEM components
• Simple bolt-on installation with no modifications required when used with OEM radiator

Construction & Design

This upper coolant pipe is precision-crafted from high-grade aluminum, chosen for its excellent thermal conductivity and resistance to corrosion. The aluminum construction not only reduces the risk of leaks and ruptures common with rubber hoses but also helps dissipate heat more effectively. The powder-coated gun metal finish adds a protective layer against environmental factors such as moisture, road salts, and engine bay contaminants, ensuring the pipe maintains its integrity and appearance over time.

Designed to match the exact dimensions and mounting points of the original equipment, this pipe guarantees a seamless fit with the OEM radiator inlet. The robust design withstands the demanding conditions of heavy-duty diesel applications, providing peace of mind for daily drivers and work trucks alike.

Installation & Fitment

Installation is straightforward and requires no special tools or modifications when paired with the OEM RAM radiator. This upper coolant pipe replaces the factory rubber hose by simply removing the old hose and securing the new aluminum pipe in place using the existing clamps and mounting points. 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.

Fitment is confirmed for 2013 through 2018 Ram 2500 and 3500 models equipped with the 6.7L Cummins diesel engine, ensuring compatibility with a wide range of heavy-duty trucks in this generation.

What's Included

• One Wehrli Upper Coolant Pipe, powder coated in gun metal
• Installation hardware is not included; reuse OEM clamps and fittings

Ideal For

This upper coolant pipe is ideal for Ram 2500 and 3500 owners who want to upgrade their cooling system with a more durable and reliable component. It is especially suited for those who frequently tow, haul heavy loads, or operate their trucks in demanding environments where OEM rubber hoses may fail prematurely. Additionally, enthusiasts seeking to enhance engine bay appearance with a clean, powder-coated aluminum part will appreciate this upgrade.

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.