Dorman 724-011 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler to Radiator

Automatic Transmission Oil Cooler Hose Assembly

Dorman 724-011 is an automatic transmission oil cooler hose assembly built to match the fit and function of the original line on select Ford and Lincoln trucks and SUVs. It is a direct replacement for leaking or damaged cooler hoses in the auxiliary cooler to radiator circuit, with molded construction and hose-clamp ends for a factory-style connection.

Key Features

• Direct replacement for the original automatic transmission oil cooler hose assembly
• Molded hose design for the auxiliary cooler to radiator routing
• Black hose assembly with hose clamp ends on both sides
• Flexible construction for routing in the transmission cooling system
• Built for operating temperatures from -40°F to 329°F
• Maximum working pressure: 150

Detailed Description

This Dorman transmission cooler hose assembly is engineered for vehicles that use an auxiliary cooler to radiator connection, including 2008-2014 Ford Expedition, 2009-2014 Ford F-150, 2010-2014 Lincoln Mark LT, 2009-2014 Lincoln Navigator, and 2007-2008 Lincoln Navigator without the Super Cooling Package. It is designed as an OE-style replacement for part number 724-011 and cross-references Ford 9L3Z7C410B for the same application. The molded steel hose assembly uses 12.7 mm inside diameter ends and includes hose-clamp style connections for a secure fit in the transmission cooling line path.

What It Helps Fix

• Transmission fluid leaks from a cracked or worn cooler hose
• Damaged or deteriorated oil cooler line routing
• Restricted transmission fluid flow caused by hose failure
• Cooling system service needs on Ford Expedition, F-150, Mark LT, or Navigator models
• Fitment issues on auxiliary cooler to radiator hose assemblies

Installation Notes and Tips

Install on the auxiliary cooler to radiator line path only for the listed applications. Inspect the mating tubes, clamps, and surrounding cooling components before installation, and replace any worn sealing surfaces or damaged hardware as needed. Confirm vehicle configuration, including the auxiliary cooler and the 2007-2008 Lincoln Navigator note for vehicles without the Super Cooling Package, before ordering. Use the correct hose-clamp installation method to ensure a secure connection.

Quality Assurance

Dorman designs this hose assembly to match original fit and function using durable components for replacement service on specified vehicles. Part number 724-011 is built for direct-fit service in the transmission cooling system and is backed by Dorman’s OE-style replacement approach.