Dorman 626-300 HVAC Heater Hose Assembly

Durable HVAC Heater Hose Assembly for Chrysler, Dodge, and Plymouth

The Dorman 626-300 HVAC heater hose assembly is designed to provide reliable heating system performance for Chrysler, Dodge, and Plymouth vehicles. Engineered with steel and rubber materials, this hose assembly ensures durability and efficient coolant flow for models like the Caravan, Grand Caravan, Grand Voyager, Town & Country, and Voyager.

• Constructed from steel and rubber for strength and flexibility
• Black coated finish for corrosion resistance
• Includes clamps for secure installation
• Branched coolant hose type with flared and hose attachment ends
• Maximum working pressure of 100 PSI
• Centerline length of 53 inches for precise fitment
• Compatible with Chrysler, Dodge, and Plymouth minivans

Technical Details and Specifications

The Dorman 626-300 heater hose assembly features a branched design with three hose ends, each with specific inside diameters: 0.5 inches for end 1 and 0.58 inches for ends 2 and 3. The hose ends have outside diameters of 0.94 inches for end 1 and 1.04 inches for ends 2 and 3. End 1 uses a flared attachment type, while ends 2 and 3 use hose attachments, ensuring compatibility with the vehicle’s HVAC system. The assembly is coated black to resist corrosion and does not require a heat shield or protective sleeve. It is rated for a maximum working pressure of 100 PSI, suitable for maintaining proper coolant flow and heater function.

Compatible Vehicles and Applications

This heater hose assembly is compatible with several Chrysler, Dodge, and Plymouth minivan models, including the Caravan, Grand Caravan, Grand Voyager, Town & Country, and Voyager. It is designed to replace OEM heater hoses that have become worn, cracked, or leaking, restoring proper heating system operation.

• Heater hose leaks or cracks causing coolant loss
• Reduced heater performance due to restricted coolant flow
• Damaged or deteriorated hose connections
• Overheating issues related to faulty heater hoses
• Replacement during HVAC system maintenance or repair

Installation Notes and Tips

Installation of the Dorman 626-300 heater hose assembly requires basic automotive tools and mechanical knowledge. The included clamps help secure the hose ends to the vehicle’s heater core and engine connections. Ensure all connections are tight and free of leaks after installation. It is recommended to drain the coolant system before removal and refill with fresh coolant after installation. Inspect surrounding components for wear or damage during replacement.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 626-300 heater hose assembly undergoes quality control testing to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation for exact warranty terms.