Dorman 624-530 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler Inlet (Passenger Side)

Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-530 automatic transmission oil cooler hose assembly is engineered to provide durable and flexible fluid transfer for Chevrolet and GMC full-size vans. Designed specifically for Express 2500, Express 3500, Savana 2500, and Savana 3500 models, this hose assembly ensures consistent transmission cooling performance under varying operating conditions.

• Length: 23.3 inches molded assembly for precise fitment
• Hose colors: Black and silver for easy identification
• Ends: Flange type on both ends with 7.5-inch inside diameter
• Materials: Combination of metal and rubber for flexibility and durability
• Maximum working pressure: 100 psi suitable for transmission cooling systems
• Operating temperature range: -40°F to 329°F to withstand extreme conditions
• Flexible molded hose assembly designed to reduce stress and vibration
• Does not contain internal springs or include gaskets/seals

Durable Construction and Precise Fitment

The Dorman 624-530 hose assembly combines metal and rubber materials to provide a flexible yet robust solution for automatic transmission oil cooling. Its molded assembly design ensures a secure fit with flange ends, minimizing the risk of leaks or disconnections. The hose’s ability to operate within a wide temperature range from -40°F to 329°F makes it suitable for both cold starts and high-heat transmission environments. With a maximum working pressure of 100 psi, this hose assembly maintains reliable fluid flow and cooling efficiency for Chevrolet Express and GMC Savana vans.

Compatible Vehicles and Applications

This transmission oil cooler hose assembly is compatible with the following vehicles:

• Chevrolet Express 2500
• Chevrolet Express 3500
• GMC Savana 2500
• GMC Savana 3500

It is designed to replace worn or damaged transmission cooler lines, helping to prevent overheating and transmission fluid leaks.

Common Issues Addressed by This Hose Assembly

• Transmission fluid leaks due to cracked or brittle hoses
• Reduced transmission cooling efficiency from damaged or collapsed lines
• Overheating caused by restricted fluid flow in the cooler hose
• Vibration and hose fatigue from improper fit or inflexible materials
• Corrosion or wear on metal components of the hose assembly

Installation Notes and Tips

• Ensure the vehicle is cool and transmission fluid pressure is relieved before removal
• Inspect flange ends and mating surfaces for damage before installation
• Use proper tools to avoid damaging the hose or flange fittings
• Verify hose routing matches original configuration to prevent kinks or interference
• Check for leaks after installation by running the engine and monitoring transmission fluid flow

Quality Assurance and Warranty

Dorman manufactures this transmission oil cooler hose assembly to meet or exceed OEM specifications for fit, form, and function. The combination of metal and rubber materials is selected for durability and resistance to heat and pressure typical in transmission cooling systems. While specific warranty details are not provided, Dorman products generally come with a limited warranty covering defects in material and workmanship.