Dorman 724-226 Transmission Cooler Hose Assembly

Dorman 724-226 is an automatic transmission oil cooler hose assembly built to match the fit and function of the original line on select Ram and Dodge trucks. It is a direct replacement for leaking or damaged transmission cooler lines on 2010-2012 Ram 2500 and Ram 3500 applications, including inlet and outlet locations without an auxiliary cooler.

Key Features

• Automatic transmission oil cooler hose assembly for inlet and outlet service
• Fits 2010 Dodge Ram 2500 and Ram 3500, inlet and outlet
• Fits 2011-2012 Ram 2500 and Ram 3500, inlet and outlet, wo/Auxiliary Cooler
• Molded hose assembly with rubber and metal construction
• Black and silver finish
• Male quick disconnects on one end and female quick disconnects on the other
• 60-inch length with 0.49-inch inside diameter at both ends
• Maximum working pressure: 250; operating temperature range: -40F to 329F
• Fittings included; gasket or seal not included

Detailed Description

This transmission cooler hose assembly is engineered as an OE-style replacement for the factory line, using durable materials to restore fluid transfer between the transmission and cooler circuit. Dorman 724-226 is designed for Ram 2500 and Ram 3500 trucks where the original hose has cracked, leaked, or been damaged, and it follows the original fitment for inlet and outlet routing. This part cross-references Mopar 55056951AC for the same application.

What It Helps Fix

• Transmission fluid leaks from a damaged cooler hose
• Cracked or deteriorated factory hose material
• Restricted fluid flow caused by a compromised line
• Improper sealing at quick-disconnect connections
• Heat-related hose failure in transmission cooler routing

Installation Notes and Tips

Verify vehicle year, make, model, and whether the truck is equipped with an auxiliary cooler before ordering. This assembly uses quick-disconnect ends, so inspect the mating fittings and sealing surfaces before installation. Replace any worn retaining components or seals at the connection points if needed, and confirm the line is routed to avoid contact with hot or moving components.

Quality Assurance

Dorman designs this hose assembly to match original fit and function using durable components for replacement service on specified vehicles. Part number 724-226 is built for direct-fit use on the listed Ram and Dodge applications.