Dorman 626-691 HVAC Heater Hose Assembly

Overview of Dorman HVAC Heater Hose Assembly 626-691

The Dorman HVAC Heater Hose Assembly 626-691 is designed specifically for Ford Transit models, including Transit-150, Transit-250, Transit-350, and Transit-350 HD. This molded plastic hose assembly ensures reliable coolant flow within the heating system, maintaining optimal cabin temperature and engine performance.

• Constructed from durable black plastic material
• Molded assembly with a maximum bend angle of 90 degrees
• Multiple inside diameters: 0.28, 0.24, and 0.95 inches for precise fitment
• Quick connect and clamp attachment types for secure installation
• Maximum working pressure of 100 PSI and burst pressure of 125 PSI
• Centerline length of 37.7 inches for accurate replacement
• Compatible with Ford Transit series vehicles

Detailed Product Description

The Dorman 626-691 HVAC Heater Hose Assembly is engineered as a molded assembly made from high-quality plastic, designed to withstand the demands of the heating and cooling system in Ford Transit vans. Its black color and regular grade type provide a functional and durable solution for heater hose replacement. The assembly features multiple hose ends with varying inside diameters—0.28, 0.24, and 0.95 inches—allowing it to connect seamlessly with existing HVAC components. The hose ends include quick connect and clamp attachment types, facilitating a secure and leak-free connection without the need for additional clamps included in the package.

With a maximum working pressure of 100 PSI and a burst pressure rating of 125 PSI, this heater hose assembly is built to handle typical operating conditions within the HVAC system. The molded design allows for a maximum bend angle of 90 degrees, ensuring proper routing without kinking or restricting coolant flow. The 37.7-inch centerline length matches OEM specifications for a direct fit replacement in Ford Transit, Transit-150, Transit-250, Transit-350, and Transit-350 HD models.

Common Applications and Problem Solving

• Replacement of cracked or leaking heater hoses in Ford Transit HVAC systems
• Resolving coolant leaks that cause insufficient cabin heating
• Fixing hose assemblies that have become brittle or damaged due to heat exposure
• Addressing improper coolant flow caused by collapsed or kinked hoses
• Upgrading worn or deteriorated heater hose assemblies to restore system integrity

Installation Notes and Tips

• Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant
• Verify hose end diameters and attachment types match the existing HVAC connections on your Ford Transit model
• Use appropriate clamps where required, as this assembly does not include clamps
• Inspect surrounding components for wear or damage during replacement
• Properly route the hose to maintain the maximum bend angle of 90 degrees without kinking

Quality Assurance and Warranty

Dorman manufactures the 626-691 HVAC Heater Hose Assembly to meet or exceed OEM standards for fit, form, and function. The product undergoes rigorous quality control to ensure durability and reliable performance under normal operating conditions. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.