Dorman 624-065 Automatic Transmission Oil Cooler Hose Assembly - Lower

Automatic Transmission Oil Cooler Hose Assembly

Dorman 624-065 is a replacement automatic transmission oil cooler hose assembly for the transmission-to-cooler circuit. It uses metal and rubber construction to help maintain leak-free fluid transfer between the transmission and the transmission oil cooler on select Chevrolet Express and GMC Savana vans.

• Direct replacement automatic transmission oil cooler hose assembly
• Metal and rubber construction for fluid routing durability
• Male quick disconnect ends on both sides
• 32-inch length
• Natural hose color
• Maximum working pressure: 100 psi
• Operating temperature range: -40°F to 329°F
• Compatible with lower radiator-to-transmission routing on listed applications

Vehicle Fitment

• Fits 1998-2002 Chevrolet Express 1500, lower radiator to transmission.
• Fits 1998-2002 Chevrolet Express 2500, lower radiator to transmission; wo/Auxiliary Oil Cooler.
• Fits 1998-2002 GMC Savana 1500, lower radiator to transmission.
• Fits 1998-2002 GMC Savana 2500, lower radiator to transmission; wo/Auxiliary Oil Cooler.

This Dorman 624-065 transmission line cross-references OE-style part numbers 5801135 and 15008311 for the same application.

What It Is Used For

• Replacing a leaking or damaged transmission cooler hose
• Restoring fluid flow between the transmission and radiator cooler circuit
• Addressing cracked, corroded, or worn hose sections
• Correcting transmission fluid seepage at quick-disconnect connections
• Repairing lower radiator-to-transmission line routing on select vans

Installation Notes and Tips

Verify the vehicle’s cooler line routing, end style, and lower-position application before installation. This hose assembly uses male quick disconnect fittings at both ends and is not flexible, so alignment with the factory routing is important. Confirm whether the vehicle is equipped with an auxiliary oil cooler, since some listed applications specify wo/Auxiliary Oil Cooler.

Quality Assurance

Dorman builds this replacement hose assembly from metal and rubber components to support secure fluid transfer in the transmission cooling system. The part is engineered as a direct replacement for the listed Chevrolet Express and GMC Savana applications.