Gates 19846 HVAC Heater Hose - Engine To Heater

Reliable HVAC Heater Hose for Buick and Cadillac Models

The Gates Molded Heater Hose 19846 is engineered to provide dependable heating system performance for select Buick and Cadillac vehicles. Designed with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's HVAC system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and easy installation
• Inside diameter of 0.75 inches (19 mm) on both ends
• Centerline length of 32 inches (813 mm) for accurate replacement
• Compatible with Buick Lucerne and Cadillac DTS models

About the Gates Molded Heater Hose Product Line

The Molded Heater Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle applications. This reduces installation time and ensures a secure fit within the HVAC system. The molded construction of part number 19846 eliminates the need for bending or shaping during installation, maintaining hose integrity and system efficiency.

Detailed Product Description

This HVAC heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. Both ends of the hose have an inside diameter of 0.75 inches (19 mm), making it suitable for the heater core and engine connections in the Buick Lucerne and Cadillac DTS. The 32-inch (813 mm) centerline length matches OEM specifications, ensuring proper routing and fitment without modifications. The molded design enhances durability by reducing stress points and potential leaks common with flexible hoses.

Common Applications and Issues Addressed

• Replacement of cracked or leaking heater hoses in Buick Lucerne and Cadillac DTS
• Restoring proper coolant flow to the HVAC heater core
• Preventing coolant loss and overheating due to hose failure
• Eliminating hose collapse or kinking that restricts heater performance
• Maintaining consistent cabin heating during cold weather operation

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns from hot coolant. Verify hose routing matches the original to prevent interference with other engine components. Use appropriate clamps to secure both ends of the hose firmly. Inspect adjacent hoses and connections for wear during replacement to maintain overall HVAC system integrity.

Quality Assurance and Warranty

Gates Molded Heater Hose 19846 is manufactured to meet or exceed OEM standards for fit, form, and function. The EPDM material and molded construction provide reliable performance under typical operating conditions. While specific warranty details are not provided, Gates products generally come with a limited warranty against defects in material and workmanship.