Global Parts 8221243 HVAC Heater Hose Fitting

HVAC Heater Hose Fitting for GM Applications

Global Parts 8221243 is an HVAC heater hose fitting used in coolant transfer points on select GM vehicles. It serves as a quick disconnect fitting on the heater inlet hose for listed Cadillac, Chevrolet, Buick, and GMC applications.

Key Features

• HVAC heater hose fitting for heater inlet hose connections
• Quick disconnect style application on supported vehicles
• Used in coolant routing between the engine and heater core circuit
• Direct fitment coverage for multiple GM truck and SUV platforms
• Part number 8221243 for catalog and service matching

Detailed Description

This Global Parts heater hose fitting is built for vehicles that use a quick disconnect connection at the heater inlet hose. It is used in the coolant path that carries heat from the engine cooling system to the cabin heater core, helping maintain proper heater circuit routing on supported GM platforms. This part number 8221243 also cross-references ACI 84500 for the same application.

Compatible With 1990-1996 Buick Regal, 1994-1996 Buick Century, 1994-1998 Buick Skylark, 1990-1995 Chevrolet Camaro, 1992-1994 Chevrolet Blazer, 1992-1994 GMC Yukon, and 1996-1999 Chevrolet C1500, Chevrolet C1500 Suburban, Chevrolet C2500, Chevrolet C2500 Suburban, Chevrolet C35, Chevrolet C3500, Chevrolet K1500, Chevrolet K1500 Suburban, Chevrolet K2500, Chevrolet K2500 Suburban, Chevrolet K3500, Chevrolet Silverado, Chevrolet Suburban 1500, Chevrolet Tahoe, GMC C1500, GMC C1500 Suburban, GMC C2500, GMC C2500 Suburban, GMC C3500, GMC K1500, GMC K1500 Suburban, GMC K2500, GMC K2500 Suburban, GMC K3500, GMC Yukon, plus 1999 Cadillac Escalade.

Common Issues This Part May Address

• Cracked or leaking heater hose connection
• Broken quick disconnect fitting at the heater inlet hose
• Coolant seepage near the heater circuit connection
• Loss of heater performance caused by a damaged hose fitting
• Service replacement for worn coolant transfer hardware

Installation Notes and Tips

Verify the vehicle’s heater inlet hose connection style before ordering. Match the original fitting design and confirm the application by year, make, and model, especially on Chevrolet C1500, GMC Yukon, and Cadillac Escalade listings. Inspect the hose and surrounding coolant connections for wear before reassembly.

Quality Assurance

Global Parts supplies service replacement hardware for HVAC and cooling-system connection points. This part is cataloged for the listed GM applications and referenced against known interchange numbers for application matching.