Dorman 926-999 A/C Hose Assembly - Rear

Overview of Dorman 926-999 A/C Hose Assembly

The Dorman 926-999 A/C Hose Assembly is designed specifically for Chevrolet Envoy XL and GMC Trailblazer EXT models. This molded assembly combines durable aluminum and rubber AC hose materials to ensure reliable performance in your vehicle's HVAC system.

• Constructed with aluminum and rubber AC hose for durability
• Molded assembly design for precise fit and function
• Compatible with R12 and R134a refrigerant types
• Includes two AC lines and four seals for a complete replacement
• Supports both high and low system pressure
• Fittings and gaskets included for secure connections
• Length: 144 inches with multiple inside and outside diameters for proper fit

Detailed Product Description

The Dorman 926-999 A/C Hose Assembly is engineered to meet the specific HVAC requirements of Chevrolet Envoy XL and GMC Trailblazer EXT vehicles. Featuring a combination of aluminum tubing and rubber AC hose, this assembly provides a balance of strength and flexibility necessary for efficient air conditioning operation. The molded assembly design ensures that the hose contours match the original equipment, facilitating straightforward installation and optimal airflow.

This assembly supports both R12 and R134a refrigerants, making it suitable for various A/C system configurations. The included fittings and gaskets help maintain a secure, leak-free connection, while the dual hose lines accommodate both high and low system pressures. With inside diameters of 17.3 mm and 7.5 mm and outside diameters ranging from 8.2 mm to 17.6 mm, this assembly is tailored to the precise specifications required by the vehicle models it serves.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C hoses in Chevrolet Envoy XL and GMC Trailblazer EXT
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Restoring proper refrigerant flow for efficient air conditioning performance
• Addressing system pressure imbalances due to faulty hose assemblies
• Upgrading from incompatible or outdated hose components

Installation Notes and Tips

When installing the Dorman 926-999 A/C Hose Assembly, ensure the vehicle’s A/C system is fully evacuated and depressurized before removal of the old hoses. Verify that all seals and fittings included in the package are properly seated to prevent leaks. Due to the molded shape of the assembly, align the hoses carefully to avoid kinks or stress points. It is recommended to inspect the entire HVAC system for additional wear or damage during installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 926-999 A/C Hose Assembly undergoes rigorous quality checks to ensure durability and performance under high and low system pressures. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts to cover defects in materials and workmanship.