Automatic Transmission Oil Cooler Hose Assembly

Dorman 724-223 is an automatic transmission oil cooler hose assembly built to match the fit and function of the original line on select Ram heavy-duty trucks. It is a direct replacement for leaking or damaged transmission cooler lines and is engineered with durable components for dependable service.

• Fits 2014-2019 Ram 2500, inlet and outlet at transmission
• Fits 2014-2019 Ram 3500, inlet and outlet at transmission
• Molded hose assembly with black/gray housing and hose finish
• 3 male quick disconnects on end 1 and 1 female quick disconnect on end 2
• 56-inch length with 0.42-inch inside diameter at both ends
• Rated for 250 maximum working pressure
• Operating temperature range: -40F to 329F
• Flexible construction with fittings and gasket or seal included

Built For OE-Style Replacement

This transmission oil cooler hose assembly is shaped as a molded assembly and uses steel, aluminum, and rubber components to replicate the original routing and connection style. Dorman 724-223 is a practical replacement when the factory cooler line on a Ram 2500 or Ram 3500 has cracked, leaked, or been damaged at the transmission inlet and outlet. This part cross-references 68230432AC for the same application.

Common Problems It Can Address

• Transmission fluid leaks from damaged cooler hose lines
• Cracked or worn hose sections near the transmission
• Broken or loose quick-disconnect connections
• Restricted cooler line flow caused by deteriorated original tubing
• Service issues related to failed inlet and outlet transmission lines

Installation Notes And Tips

Verify the vehicle application before installation by matching the Ram 2500 or Ram 3500 model year and the transmission inlet/outlet configuration. Inspect the mating ports and surrounding cooler line routing for wear, contamination, or damage before connecting the new assembly. Confirm the quick-disconnect ends are fully seated and check for leaks after refilling the transmission system.

Quality Assurance

Dorman designs this hose assembly to match original fit and function using durable replacement components for specified vehicles. Part number 724-223 is engineered as a direct replacement for the factory transmission oil cooler line assembly on listed Ram applications.