Gates 28473 HVAC Heater Hose

Reliable 90 Degree Molded Heater Hose for Select GM and Chrysler Vehicles

The Gates 90 Degree Molded Heater Hose (Part Number 28473) is engineered to provide a precise fit and durable performance for a range of Buick, Cadillac, Chevrolet, Chrysler, Dodge, Oldsmobile, Plymouth, and Pontiac models. Constructed from EPDM material, this molded heater hose is designed to withstand the demands of automotive HVAC systems.

• Durable EPDM construction resists heat, ozone, and coolant degradation
• 90 degree molded design ensures accurate fit and routing
• Inside diameter of 0.625 inches (16 mm) on both ends for consistent flow
• Centerline length of 64 inches (1626 mm) for extended reach
• Arm lengths of 4 inches (102 mm) and 60 inches (1524 mm) for precise installation
• Compatible with multiple GM and Chrysler vehicle models

About the Gates 90 Degree Molded Heater Hose Product Line

The Gates 90 Degree Molded Heater Hose product line focuses on providing molded hoses with specific angles and lengths to match OEM specifications. This ensures proper coolant flow and fitment in HVAC systems, reducing the risk of leaks and premature failure. Part number 28473 is a part of this line, offering a 90 degree bend molded hose made from EPDM for enhanced durability and heat resistance.

Detailed Product Description

This HVAC heater hose is molded at a 90 degree angle to facilitate installation in tight engine compartments where precise hose routing is critical. Both ends feature an inside diameter of 0.625 inches (16 mm), matching OEM dimensions for seamless integration. The hose’s centerline length measures 64 inches (1626 mm), with arm lengths of 4 inches (102 mm) and 60 inches (1524 mm), providing the necessary reach and bend radius for proper coolant flow. Made from EPDM, the hose resists heat, ozone, and coolant chemicals, making it suitable for long-term use in heating and cooling systems of vehicles such as the Chevrolet Camaro, Dodge Caravan, Pontiac Firebird, and Cadillac Eldorado.

Common Applications and Issues Addressed

• Replacement of cracked or leaking heater hoses in Buick Century and Oldsmobile Cutlass Ciera
• Resolving coolant leaks causing HVAC system inefficiency in Chrysler Town & Country and Plymouth Sundance
• Restoring proper coolant flow in Pontiac Grand Prix and Dodge Dakota heater systems
• Addressing hose deformation or collapse due to heat exposure in Cadillac Seville and Chevrolet Camaro
• Ensuring correct hose routing and fitment in Chrysler LeBaron and Buick Regal models

Installation Notes and Tips

Ensure the vehicle’s cooling system is cool before beginning installation to avoid burns. Verify that the hose dimensions and molded angle match the original equipment specifications for your Buick, Cadillac, Chevrolet, Chrysler, Dodge, Oldsmobile, Plymouth, or Pontiac model. Use appropriate clamps to secure the hose ends and check for leaks after installation. Proper routing is essential to prevent kinks or interference with other engine components.

Quality Assurance and Warranty

Gates manufactures the 90 Degree Molded Heater Hose (Part Number 28473) to meet or exceed OEM standards for durability and performance. The EPDM material provides resistance to heat and chemical exposure common in automotive HVAC systems. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship.