Gates 91051-19 HVAC Heater Hose Connector - Coolant Elbow - Upper

Gates 91051-19 Aluminum Heater Hose Connector

The Gates 91051-19 is an aluminum HVAC heater hose connector built as an elbow-style coolant fitting for upper coolant elbow applications. It routes coolant between hose sections with a 0.875 in. / 22 mm outside diameter on both ends for a direct-size connection.

Key Features

• Aluminum elbow connector for HVAC heater hose and cooling system routing
• End 1 outside diameter: 0.875 in. / 22 mm
• End 2 outside diameter: 0.875 in. / 22 mm
• Upper coolant elbow application
• Gates part number 91051-19 for catalog and service matching

Product Details

Gates Hose Connectors (Aluminum) are built for cooling system service where a formed connector is needed to carry coolant cleanly through the upper hose path. This Gates 91051-19 elbow connector is specified for vehicles including Buick Allure, Buick LaCrosse, Buick Lucerne, Chevrolet Impala, Chevrolet Monte Carlo, Pontiac Grand Prix, and Pontiac Bonneville in upper coolant elbow locations. The aluminum construction supports a rigid hose connection point in the HVAC and engine cooling circuit, and the matching 22 mm ends simplify size-based replacement work. This part cross-references 24503423 for the same application.

What It Helps Address

• Cracked or leaking upper coolant elbow connections
• Damaged heater hose connector ends
• Coolant seepage at a formed hose junction
• Restricted coolant routing caused by a failed elbow fitting
• Service replacement for worn aluminum coolant connectors

Installation Notes and Tips

Verify the vehicle’s upper coolant elbow location and confirm both hose ends measure 0.875 in. / 22 mm before installation. Match the connector orientation to the existing hose routing so the coolant path remains aligned and free of stress. For fitment reference, this part fits 2005-2009 Buick Allure, upper coolant elbow; 2005-2009 Buick LaCrosse, upper coolant elbow; 2006-2008 Buick Lucerne, upper coolant elbow; 2000-2005 Chevrolet Impala, upper coolant elbow; 1997-2008 Pontiac Grand Prix, upper coolant elbow; and other listed applications in the same position. Gates 91051-19 should be checked against the original connector shape and diameter before service.

Quality Assurance

Gates is a recognized name in automotive hose and cooling system components, and this aluminum connector follows the brand’s hose connector product line for service replacement use. Confirm part number 91051-19 and vehicle fitment before installation.