Gates 28478 HVAC Heater Hose

Overview of Gates 90 Degree Molded Heater Hose 28478

The Gates 90 Degree Molded Heater Hose 28478 is engineered for reliable HVAC system performance in select Buick, Chevrolet, Ford, Mazda, Oldsmobile, and Pontiac vehicles. Designed with precision, this molded heater hose ensures proper coolant flow and fitment for models like the Chevrolet Lumina, Ford Ranger, and Pontiac Grand Prix.

• Constructed from durable EPDM material for heat and chemical resistance
• 90-degree molded design for optimal routing and fit
• Inside diameter of 0.75 inches (19 mm) on both ends
• Centerline length of 32 inches (813 mm) for accurate replacement
• Arm lengths of 8 inches (203 mm) and 24 inches (610 mm) for precise installation
• Compatible with multiple makes and models including Buick Century and Mazda B2500

Product Line Details: Gates 90 Degree Molded Heater Hose

The Gates 90 Degree Molded Heater Hose product line specializes in molded hoses designed to fit specific HVAC applications requiring a 90-degree bend. This design reduces stress on the hose and improves coolant flow efficiency. Part number 28478 is a part of this line, offering a molded configuration that matches OEM specifications for a range of domestic and import vehicles.

Technical Description and Specifications

This heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids, making it suitable for HVAC heater core connections. Both ends have an inside diameter of 0.75 inches (19 mm), ensuring compatibility with standard heater fittings. The hose features a 90-degree molded angle, with arm lengths measuring 8 inches (203 mm) and 24 inches (610 mm), and a total centerline length of 32 inches (813 mm). The molded design eliminates the need for bending during installation, reducing the risk of kinks and leaks.

Common Applications and Problem Solving

• Replacement of cracked or leaking heater hoses in Buick Century and Oldsmobile Cutlass models
• Resolving coolant leaks causing HVAC heater core inefficiency in Chevrolet Lumina and Pontiac Grand Prix
• Addressing hose deformation or collapse in Ford F-100 Ranger and Mazda B2500 vehicles
• Ensuring proper coolant flow and preventing overheating in HVAC systems
• Maintaining OEM fit and function in HVAC heater hose assemblies

Installation Notes and Tips

When installing the Gates 90 Degree Molded Heater Hose 28478, ensure the hose is routed without twisting to maintain the molded 90-degree angle. Verify that the inside diameter matches the heater core and engine fittings to prevent leaks. Use appropriate clamps to secure the hose ends firmly. Inspect surrounding components for wear or damage during replacement to avoid future issues.

Quality Assurance and Warranty

Gates manufactures this heater hose to meet or exceed OEM standards, using EPDM material for durability and resistance to automotive fluids and heat. While specific warranty details are not provided, Gates products typically adhere to strict quality control processes to ensure reliable performance in HVAC applications.