Dorman 800-403 HVAC Heater Hose Connector - Heater To Engine

Overview of Dorman HVAC Heater Hose Connector 800-403

The Dorman HVAC Heater Hose Connector 800-403 is designed to provide a reliable connection within the heating and cooling system of various vehicles. Engineered with durable plastic and featuring a straight fitting angle, this connector ensures efficient fluid transfer and easy installation for compatible Buick, Cadillac, Chevrolet, Ford, GMC, Oldsmobile, Pontiac, and Saab models.

• Material: Durable plastic construction for corrosion resistance
• Straight fitting angle for direct hose alignment
• Quick disconnect fitting on one end for fast serviceability
• Hose barb fitting on the other end for secure hose attachment
• Fitting size: 5/8 inch on both ends
• Includes one heater hose connector per package
• Compatible with a wide range of vehicle makes and models

Detailed Product Description

The Dorman 800-403 HVAC Heater Hose Connector is a precision-engineered component designed to maintain the integrity of the heater hose system. Constructed from high-quality plastic, it resists corrosion and withstands the temperature fluctuations typical in HVAC systems. The straight fitting angle allows for a direct and secure connection between heater hoses, minimizing the risk of leaks or disconnections. One end features a quick disconnect fitting, enabling efficient removal and replacement during maintenance, while the opposite end uses a hose barb fitting to ensure a tight seal with the hose. Both ends measure 5/8 inch, making this connector suitable for a variety of OEM heater hose sizes.

Compatible Vehicles and Applications

This heater hose connector is compatible with numerous vehicles, including Buick Achieva, Cadillac Escalade, Chevrolet Silverado 3500, Ford F-150, GMC Canyon, Oldsmobile Cutlass, Pontiac Grand Am, and Saab 9-7x, among others. It is designed to fit models such as the Ford Bronco, Chevrolet Colorado, and GMC Yukon XL 2500, providing a dependable solution for HVAC hose repairs and replacements.

Common Issues Addressed by This Heater Hose Connector

• Leaking or cracked heater hose connections
• Difficulty disconnecting old or damaged hose fittings
• Corrosion or wear in existing plastic connectors
• Improper hose alignment causing coolant leaks
• Replacement of worn or broken HVAC hose connectors

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. The quick disconnect fitting simplifies removal of the old connector without damaging surrounding components. Verify that both hose ends are clean and free of debris before attaching the new connector. Secure the hose barb end with appropriate clamps to prevent leaks. After installation, check for leaks by running the engine and monitoring the heater hose connections.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 800-403 heater hose connector undergoes rigorous quality control to maintain consistent fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.