Dorman 926-866 A/C Hose Assembly - Rear

Durable A/C Hose Assembly for Cadillac, Chevrolet, and GMC Vehicles

The Dorman 926-866 A/C hose assembly is engineered to provide reliable performance for your vehicle's HVAC system. Designed specifically for Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon models, this hose assembly ensures proper refrigerant flow and system integrity.

• Constructed from high-quality aluminum and rubber materials for durability and flexibility
• Molded assembly design for precise fit and leak prevention
• Compatible with R12 and R134a refrigerants
• Includes male and female fittings with gasket seals for secure connections
• Supports both high and low system pressures
• Length of 144 cm with specific inside and outside diameters for optimal flow

Technical Specifications and Features

The Dorman 926-866 A/C hose assembly combines aluminum and rubber components to withstand the demands of automotive air conditioning systems. The hose features a molded assembly shape that matches OEM specifications, ensuring a proper fit in Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon vehicles. It supports both R12 and R134a refrigerants, making it versatile for various A/C system types. The hose length measures 144 cm, with inside diameters of 17.3 mm and 7.5 mm, and outside diameters ranging from 8.2 mm to 17.6 mm, accommodating different connection points. The assembly includes male (macho) and female (hembra) fittings, each sealed with gaskets to prevent leaks and maintain system pressure under both high and low conditions.

Common Applications and Problem Resolution

• Replacement of worn or cracked A/C hoses in Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon
• Restoring proper refrigerant flow to improve air conditioning performance
• Fixing leaks caused by damaged fittings or seals
• Upgrading from incompatible or deteriorated hoses to OEM-quality parts
• Ensuring system pressure integrity for efficient HVAC operation

Installation Notes and Tips

When installing the Dorman 926-866 A/C hose assembly, ensure the vehicle’s A/C system is fully depressurized and evacuated before removal of the old hose. Verify that the male and female fittings align correctly with the vehicle’s ports to avoid cross-threading. Use appropriate torque specifications for fittings to maintain a secure seal without damaging components. Inspect gaskets for proper placement and condition during installation to prevent leaks. It is recommended to replace any worn O-rings or seals during the hose replacement process.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 926-866 A/C hose assembly undergoes rigorous quality control to ensure compatibility and leak-free operation in Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon vehicles. This part includes gasket seals and fittings to maintain system integrity. Please refer to Dorman’s warranty policy for specific coverage details.