Gates 19723 HVAC Heater Hose - Engine To Heater, Heater To Engine (Lower) or Valve To Engine

Reliable HVAC Heater Hose for Buick, Oldsmobile, and Pontiac

The Gates Molded Heater Hose 19723 is engineered to provide dependable heating system performance for select Buick, Oldsmobile, and Pontiac vehicles. Designed with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and leak prevention
• Centerline length of 19.1 inches (485 mm) for accurate replacement
• Inside diameter of 0.72 inches (18 mm) on both ends
• Compatible with Buick 88, 98, LeSabre, Park Avenue, Oldsmobile LSS, Regency, and Pontiac Bonneville 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 original equipment specifications. This reduces installation time and improves sealing performance by eliminating the need for bending or shaping during installation. The 19723 part benefits from this molded design, ensuring a precise fit for the specified vehicle models.

Detailed Product Description

This HVAC heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids, making it suitable for the demanding environment of a vehicle’s heating system. Both ends of the hose have an inside diameter of 0.72 inches (18 mm), matching OEM dimensions to maintain proper coolant flow. The 19.1-inch (485 mm) centerline length ensures compatibility with the heating system layout of Buick, Oldsmobile, and Pontiac vehicles listed in the fitment.

Common Applications and Issues Addressed

• Replacement of cracked or leaking heater hoses in Buick 88 and 98 models
• Restoring proper coolant flow in Oldsmobile LSS and Regency heating systems
• Fixing heater hose failures causing insufficient cabin heat in Pontiac Bonneville
• Resolving coolant leaks that lead to engine overheating
• Upgrading worn or brittle hoses to prevent future HVAC system failures

Installation Notes and Tips

Ensure the engine is cool before removing the old heater hose to avoid burns. Verify the hose routing matches the original to prevent kinks or interference with other components. The molded design of the Gates 19723 heater hose simplifies installation by fitting precisely without modification. Use appropriate clamps to secure the hose ends and check for leaks after installation.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose 19723 to meet or exceed OEM standards for durability and performance. The EPDM material and molded construction contribute to a reliable, long-lasting replacement part. Warranty details should be confirmed with the product documentation or supplier.