Dorman 624-979 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler To Radiator (Upper)

Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-979 automatic transmission oil cooler hose assembly is engineered to provide a durable and precise fit for Chevrolet and GMC heavy-duty trucks. Designed specifically for models like the Sierra 2500 HD and Silverado 3500 HD, this hose assembly ensures efficient transmission fluid cooling under demanding conditions.

• Compatible with Chevrolet and GMC Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 HD models
• 38-inch length with natural-colored hose for easy identification
• Durable metal and rubber hose construction for strength and flexibility
• Quick disconnect fittings on both ends for straightforward installation and removal
• Operates reliably between -40°F and 329°F temperature range
• Maximum working pressure of 100 PSI suitable for heavy-duty transmission cooling systems
• Does not contain springs or gaskets, simplifying maintenance and replacement

Product Details and Specifications

The Dorman 624-979 transmission oil cooler hose assembly combines metal and rubber materials to withstand the rigors of heavy-duty use in Chevrolet and GMC trucks. Its 38-inch length is optimized for proper routing and fitment in the transmission cooling system. Both ends feature quick disconnect fittings, allowing for efficient service without the need for specialized tools. The hose is designed to operate within a wide temperature range from -40°F to 329°F, accommodating extreme weather and engine conditions. With a maximum working pressure of 100 PSI, it maintains reliable fluid flow and cooling performance without failure.

Applications and Common Issues Addressed

• Replacement of worn or cracked transmission oil cooler hoses in Chevrolet Sierra 2500 HD and Silverado 3500 HD
• Resolving transmission fluid leaks caused by damaged or deteriorated hoses
• Preventing overheating of transmission fluid by ensuring proper cooler line integrity
• Addressing fitment issues with original equipment hoses that may not seal properly
• Maintaining transmission system pressure and fluid flow for optimal vehicle performance

Installation Notes and Tips

When installing the Dorman 624-979 hose assembly, ensure the quick disconnect fittings are securely engaged to prevent leaks. Inspect the transmission cooler lines and surrounding components for damage before installation. Avoid twisting or bending the hose excessively to maintain its structural integrity. This hose assembly is designed for direct replacement on compatible Chevrolet and GMC models, simplifying the installation process.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 624-979 transmission oil cooler hose assembly undergoes rigorous quality control to ensure durability and reliability in heavy-duty applications. While specific warranty details are not provided, Dorman typically offers limited warranties covering defects in materials and workmanship.