Wehrli Upper Coolant Pipe

2013–2015 Ram 2500 / 3500 6.7L Diesel

Part #: WCF100867-BR

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 HD trucks equipped with the 6.7L Cummins diesel engine and dual radiator setup. Designed specifically for vehicles with OEM dual radiators, this aluminum coolant pipe eliminates the common failure points found in the original equipment manufacturer (OEM) plastic connector and rubber hose assembly, which are prone to leaks and premature wear.

Ideal for diesel truck owners seeking a durable, long-lasting cooling system upgrade, this part offers enhanced reliability and peace of mind by addressing a known weak spot in the cooling circuit. The pipe is powder coated in a vibrant Bengal Red finish, providing both corrosion resistance and an attractive under-hood appearance.

Key Features

Engineered for durability and precise fitment, the Wehrli Upper Coolant Pipe offers the following benefits:

• Constructed from high-quality aluminum for superior strength and heat resistance
• Replaces the OEM rubber hose and plastic Y-connector prone to coolant leaks
• Specifically designed for use with OEM Ram dual radiator systems to ensure proper fitment
• Powder coated in Bengal Red for corrosion protection and enhanced visual appeal
• Direct bolt-on replacement with no modifications required for compatible vehicles
• Improves cooling system reliability by eliminating failure-prone components
• Compatible with 2013–2015 Ram 2500 and 3500 models equipped with the 6.7L Cummins diesel engine
• Replaces MOPAR part numbers 52014722AD, 52014722AB, and 52014722AC

Construction & Design

This upper coolant pipe is precision-machined from durable aluminum, chosen for its excellent thermal conductivity and resistance to corrosion. The integrated Y-connector design replaces the OEM plastic piece, which is a common source of coolant leaks due to cracking and degradation over time. The entire assembly is finished with a high-quality powder coat in Bengal Red, providing a tough protective layer that withstands harsh engine bay conditions while adding a custom look.

The design maintains OEM specifications for hose connections and mounting points, ensuring a seamless fit with the factory dual radiator setup. It is important to note that aftermarket radiators with differing inlet locations may affect fitment, so this part is recommended for use with original equipment radiators.

Installation & Fitment

Installation is straightforward and requires no special tools beyond standard hand tools. This part is a direct replacement for the factory upper coolant hose and Y-connector assembly on 2013–2015 Ram 2500 and 3500 trucks equipped with the 6.7L Cummins diesel engine and dual radiators. Simply remove the OEM rubber hose and plastic connector, then install the Wehrli aluminum pipe in their place. Ensure all clamps and connections are securely tightened to prevent leaks.

Because this pipe is designed specifically for OEM dual radiator configurations, it is important to verify your vehicle’s radiator setup before purchase. Aftermarket radiators with non-standard inlet locations may require additional modifications or may not be compatible.

What's Included

• One Wehrli Upper Coolant Pipe with integrated Y-Connector, powder coated Bengal Red
• All necessary mounting hardware and clamps for installation
• Installation instructions

Ideal For

This upper coolant pipe is ideal for Ram 2500 and 3500 owners who want to improve the durability and reliability of their cooling system, especially those experiencing coolant leaks or failures related to the OEM upper hose and plastic connector. It is also a great upgrade for enthusiasts who appreciate high-quality, visually appealing engine bay components that maintain OEM fitment and function.

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.