Dorman 800-409 HVAC Heater Hose Connector - Engine To Heater or Heater To Engine

Overview of Dorman HVAC Heater Hose Connector 800-409

The Dorman HVAC Heater Hose Connector 800-409 is a durable plastic connector designed for coolant systems in various GM and Ford vehicles. Engineered with a quick disconnect end and hose barb fitting, this black, round-shaped connector ensures a secure and efficient connection in your vehicle's heating and cooling system.

• Material: High-quality plastic construction for corrosion resistance
• Color: Black for easy identification and compatibility
• End 1: Quick disconnect fitting with 0.75 inch outside diameter
• End 2: Hose barb fitting with 0.625 inch outside diameter
• Shape: Round with a straight fitting angle for straightforward installation
• Designed specifically for coolant applications in HVAC systems
• Includes one connector per package
• Compatible with quick connect system for efficient servicing

Detailed Product Description

The Dorman 800-409 HVAC Heater Hose Connector is engineered to provide a reliable connection between heater hoses and HVAC components in a range of vehicles including Buick, Cadillac, Chevrolet, Ford, GMC, Hummer, Lincoln, Oldsmobile, and Pontiac models. Its plastic construction offers resistance to corrosion and heat, making it suitable for coolant flow in heating systems. The connector features a quick disconnect end with a 1.33 inch outside diameter and a hose barb end with a 0.689 inch outside diameter, facilitating a secure and leak-free fit. The straight fitting angle and round shape simplify installation and maintenance tasks.

Compatible Vehicles and Applications

This heater hose connector is compatible with numerous models such as the Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe, and Trailblazer; Ford F-150, Expedition, and E-150 Econoline; GMC Sierra 1500 and Yukon; as well as Buick Rainier and Pontiac Grand Am. The part number 800-409 is designed to meet the specifications required for these vehicles’ HVAC coolant systems.

Common Issues Addressed by This Connector

• Leaking or cracked heater hose connections causing coolant loss
• Difficulty disconnecting old or damaged hose fittings
• Corrosion or wear in existing plastic connectors
• Incompatibility with quick connect systems in HVAC coolant lines
• Replacement of damaged or worn heater hose connectors to restore proper coolant flow

Installation Notes and Tips

• Ensure the vehicle is cool and the cooling system is depressurized before installation
• Verify the correct hose sizes: 0.75 inch for quick disconnect end and 0.625 inch for hose barb end
• Use appropriate tools to release the quick disconnect fitting without damaging the connector
• Inspect hoses for wear or damage and replace if necessary during installation
• Confirm a secure fit to prevent leaks and maintain HVAC system performance

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 800-409 HVAC Heater Hose Connector undergoes rigorous quality control to ensure durability and reliable performance in automotive HVAC coolant systems. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship to provide confidence in your replacement part.