Dorman 624-999 Automatic Transmission Oil Cooler Hose Assembly - Inlet

Automatic Transmission Cooler Hose Assembly

Dorman 624-999 is an automatic transmission oil cooler hose assembly built with metal and rubber components for fluid transfer between the transmission and the transmission oil cooler. It is a direct-fit replacement for select Chrysler Aspen and Dodge Durango applications, including pressure line and inlet configurations.

• Fits 2007-2009 Chrysler Aspen, inlet; pressure line to auxiliary cooler
• Fits 2005-2009 Dodge Durango, pressure line
• Constructed from rubber and metal for transmission fluid routing
• Quick disconnect ends on both sides for OE-style connection points
• 45-inch hose length with a natural finish
• Rated for 100 maximum working pressure and operating temperatures from -40°F to 329°F

Detailed Product Overview

This transmission cooler hose assembly is made to replace the original line that carries automatic transmission fluid between the transmission and the cooler circuit. Dorman 624-999 uses a non-flexible rubber/metal construction to maintain routing and connection integrity, while the quick disconnect ends support the factory-style interface used on the listed Chrysler Aspen and Dodge Durango vehicles. This part cross-references OE-style part numbers 5801325 and 55056533AA for the same application.

Common Problems This Part Can Address

• Transmission fluid leakage at a damaged cooler hose or line
• Restricted fluid transfer caused by corrosion, cracking, or line wear
• Failed quick disconnect connection at the transmission or cooler side
• Pressure line issues affecting transmission-to-cooler fluid flow
• Replacement needs after service damage or age-related deterioration

Installation Notes and Tips

Verify the vehicle’s line routing, inlet location, and connector style before installation. Inspect the mating fittings and sealing surfaces for wear or contamination, and confirm the hose path matches the original layout on the Chrysler Aspen or Dodge Durango. Because no gasket or seal is included, reuse or replace related sealing components as needed based on the vehicle’s condition.

Quality Assurance

Dorman manufactures this replacement transmission cooler hose assembly with metal and rubber construction to support leak-resistant fluid delivery in the cooling circuit. Part number 624-999 is built as a direct replacement for the listed fitments and is intended to match the original connection style and service requirements.