Gates 18772 HVAC Heater Hose

Overview of Gates Molded Heater Hose 18772

The Gates Molded Heater Hose 18772 is designed to provide reliable heating system performance for a range of vehicles including Cadillac, Chevrolet, Chrysler, Dodge, GMC, Honda, Hyundai, Isuzu, Kia, Mitsubishi, Oldsmobile, and Subaru models. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and easy installation
• Inside diameter of 0.62 inches (16 mm) on both ends
• Centerline length of 15.7 inches (399 mm) for accurate replacement
• Compatible with multiple vehicle makes and models including Silverado 2500 HD and Legacy

About the Molded Heater Hose Product Line

The Molded Heater Hose line by Gates focuses on delivering hoses that are pre-formed to exact specifications, reducing installation time and ensuring a secure fit. This product line is engineered to meet OEM standards, providing consistent performance in HVAC systems. The molded construction of the 18772 part number eliminates the need for bending or shaping during installation, which helps maintain hose integrity and prevents leaks.

Detailed Product Description

The Gates Molded Heater Hose 18772 features an EPDM rubber composition that offers excellent resistance to heat, ozone, and automotive fluids, making it suitable for HVAC heater core connections. Both ends of the hose have an inside diameter of 0.62 inches (16 mm), matching OEM specifications for a proper seal. With a centerline length of 15.7 inches (399 mm), this hose fits precisely in the heating system without requiring modifications. The molded design ensures the hose maintains its shape and routing, which is critical for preventing kinks and ensuring efficient coolant flow.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in HVAC systems
• Resolving coolant leaks that cause heating inefficiency
• Fixing hose deformation or collapse that restricts coolant flow
• Upgrading to a molded hose for improved fit and durability
• Maintaining proper heating system operation in vehicles like the Chevrolet Silverado 3500 and Subaru Legacy

Installation Notes and Tips

• Ensure the engine is cool before removing the old heater hose
• Verify the inside diameter and length match the original hose to avoid leaks
• Use appropriate clamps to secure the hose ends firmly
• Inspect surrounding components for wear or damage during installation
• Follow vehicle-specific service manual instructions for heater hose replacement

Quality Assurance and Warranty

Gates Molded Heater Hose 18772 is manufactured to meet or exceed OEM specifications, ensuring reliable performance in demanding automotive HVAC applications. The EPDM material and molded construction contribute to the hose's durability and resistance to heat and chemicals. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship. For exact warranty terms, consult the product documentation or manufacturer.