Dorman 624-158 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler (Driver Side) to Transmission

Overview of Dorman 624-158 Transmission Oil Cooler Hose Assembly

The Dorman 624-158 automatic transmission oil cooler hose assembly is designed for reliable fluid transfer in heavy-duty Chevrolet and GMC trucks. Engineered to meet the demands of Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models, this hose assembly ensures consistent performance under varying temperature and pressure conditions.

• Durable metal and rubber hose construction for strength and flexibility
• Natural hose color for easy identification
• 45-inch length suitable for specific transmission line routing
• Male quick disconnect fittings on both ends for secure connections
• Maximum working pressure of 100 PSI
• Operates effectively between -40°F and 329°F
• Non-flexible design to maintain hose integrity under pressure

Detailed Product Description

The Dorman 624-158 transmission oil cooler hose assembly combines metal and rubber materials to provide a robust and reliable conduit for automatic transmission fluid. Its 45-inch length is tailored to fit the transmission cooling systems of Chevrolet and GMC heavy-duty trucks, including the Sierra 2500 HD Classic and Silverado 3500 Classic. Both ends feature male quick disconnect fittings, facilitating straightforward installation and secure fluid connections without the need for additional adapters. The hose is designed to withstand a maximum working pressure of 100 PSI, ensuring durability during high-pressure transmission fluid circulation. Operating temperature ranges from -40°F to 329°F allow this hose assembly to perform reliably in extreme weather conditions and under engine heat stress.

Compatible Vehicles and Applications

• Chevrolet Sierra 2500 HD and Sierra 2500 HD Classic
• Chevrolet Sierra 3500 and Sierra 3500 Classic
• Chevrolet Silverado 2500 HD and Silverado 2500 HD Classic
• Chevrolet Silverado 3500 and Silverado 3500 Classic
• GMC Sierra 2500 HD and Sierra 3500 HD models

Common Issues Addressed by This Hose Assembly

• Leaking or cracked transmission oil cooler hoses
• Reduced transmission cooling efficiency due to damaged hoses
• Fluid contamination from compromised hose integrity
• Pressure loss in transmission fluid lines affecting performance
• Hose failure caused by extreme temperature fluctuations

Installation Notes and Tips

Ensure the vehicle is cooled down before beginning installation to avoid burns from hot transmission fluid. Verify that the hose length and quick disconnect fittings match the original equipment specifications for your Chevrolet or GMC truck. Use appropriate tools to disconnect and connect the male quick disconnect fittings securely. Inspect surrounding components for wear or damage during installation to maintain overall transmission system integrity.

Quality Assurance and Warranty

Dorman manufactures the 624-158 transmission oil cooler hose assembly to meet or exceed OEM standards for durability and performance. The combination of metal and rubber materials provides resistance to pressure and temperature extremes commonly encountered in heavy-duty truck applications. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.