Wehrli Upper Coolant Pipe

2013–2015 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100867-GB

Overview

The Wehrli Upper Coolant Pipe with Y-Connector is a direct replacement for the factory rubber upper coolant hose on 2013 to 2015 Ram 2500 and 3500 Heavy Duty trucks equipped with the 6.7L Cummins diesel engine and dual radiator setup. Designed specifically for vehicles with OEM dual radiators, this aluminum pipe eliminates the common failure points found in the original plastic connector and rubber hose assembly, which are prone to leaks and premature wear. This upgrade ensures a more reliable coolant flow path, enhancing the durability and longevity of your truck’s cooling system.

Ideal for Ram owners seeking a robust and maintenance-free solution, the Wehrli pipe offers peace of mind by addressing a known weak spot in the factory cooling system. It is powder coated in gloss black for corrosion resistance and a clean, professional appearance under the hood.

Key Features

Engineered to provide a durable and leak-free coolant connection, the Wehrli Upper Coolant Pipe offers the following benefits:

• Constructed from high-quality aluminum for superior strength and heat resistance
• Y-connector design tailored for dual radiator systems on Ram 2500/3500 6.7L Cummins trucks
• Replaces OEM rubber hose and plastic connector prone to cracking and coolant leaks
• Powder coated gloss black finish for corrosion protection and enhanced aesthetics
• Direct bolt-on fitment with no modifications required when used with OEM dual radiators
• Compatible with factory MOPAR part numbers 52014722AD, 52014722AB, and 52014722AC
• Improves cooling system reliability under heavy-duty and towing conditions
• Designed and manufactured by Wehrli for quality and performance assurance

Construction & Design

The upper coolant pipe is precision-crafted from lightweight yet durable aluminum, chosen for its excellent thermal conductivity and resistance to corrosion. The robust Y-connector design integrates seamlessly with the factory dual radiator setup, ensuring proper coolant distribution without the risk of leaks common to OEM rubber hoses and plastic fittings. The entire assembly is finished with a high-quality gloss black powder coat, providing a protective barrier against rust and environmental damage while maintaining a clean, professional look in the engine bay.

Every aspect of the pipe’s design focuses on longevity and reliability, making it a superior alternative to the original equipment. The use of metal over rubber and plastic components significantly reduces the chance of failure due to heat cycling, vibration, and chemical exposure.

Installation & Fitment

Installation of the Wehrli Upper Coolant Pipe is straightforward and designed to be a direct replacement for the OEM upper coolant hose on 2013–2015 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins engine and dual radiator configuration. No special tools or modifications are required when used with factory dual radiators. It is important to note that aftermarket radiators with differing inlet locations may cause fitment issues.

Simply remove the original rubber hose and plastic connector assembly and install the Wehrli aluminum pipe in its place, securing it with the existing clamps and hardware. This upgrade will provide a more durable and leak-resistant coolant connection, reducing maintenance concerns over time.

What's Included

• One Wehrli Upper Coolant Pipe with integrated Y-connector
• Powder coated gloss black finish
• Installation instructions

Ideal For

This product is ideal for Ram 2500 and 3500 owners with 6.7L Cummins diesel engines who have factory dual radiators and are experiencing coolant leaks or looking to prevent future failures associated with the OEM upper coolant hose assembly. It is especially beneficial for those who use their trucks for heavy towing, hauling, or off-road applications where cooling system reliability is critical.

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.