Gates 18320 HVAC Heater Hose - Pipe-3 To Reservoir, Pipe-3 To Throttle Body or Tee To Separator

Overview of Gates Molded Heater Hose 18320

The Gates Molded Heater Hose 18320 is designed to provide reliable heating system performance for select Buick, Cadillac, Chevrolet, Honda, and Isuzu vehicles. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in automotive HVAC systems.

• Constructed from high-quality EPDM rubber for heat and chemical resistance
• Molded design for precise fit and secure connections
• Centerline length of 152 mm (6 inches) for accurate replacement
• Inside diameter of 9 mm (0.37 inches) on both ends
• Compatible with multiple models including Buick LaCrosse, Cadillac DTS, Chevrolet Malibu, Honda Passport, and Isuzu Rodeo

Product Line Details: Molded Heater Hose

The Molded Heater Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle configurations. This eliminates the need for bending or cutting during installation, reducing the risk of leaks or improper fitment. The 18320 part number is part of this line, offering a precise molded shape that fits HVAC systems in various Buick, Cadillac, Chevrolet, Honda, and Isuzu models.

Technical Specifications and Features

This HVAC heater hose features an EPDM construction known for its resistance to heat, ozone, and automotive fluids, making it suitable for heater core connections. Both ends have an inside diameter of 9 mm (0.37 inches), ensuring compatibility with OEM fittings. The hose measures 152 mm (6 inches) in centerline length, providing an exact replacement for the original part. The molded design supports a secure and leak-free installation without the need for additional modifications.

Applications and Common Issues Addressed

• Replacement of cracked or leaking heater hoses in Buick LaCrosse and Cadillac DTS
• Restoring proper coolant flow in Chevrolet Malibu and Honda Passport heating systems
• Resolving heater core connection failures in Isuzu Rodeo and Rodeo Sport
• Preventing coolant leaks that cause engine overheating or HVAC malfunctions
• Maintaining efficient cabin heating performance in compatible vehicles

Installation Notes and Tips

When installing the Gates Molded Heater Hose 18320, ensure the hose is routed according to the vehicle’s original configuration to avoid kinks or stress points. Verify that the inside diameter matches the heater core and pipe fittings for a secure seal. Use appropriate clamps to secure the hose ends and check for leaks after installation. The molded shape simplifies installation by fitting the exact contours of the HVAC system in the specified Buick, Cadillac, Chevrolet, Honda, and Isuzu models.

Quality Assurance and Warranty

Gates manufactures the Molded Heater Hose 18320 to meet or exceed OEM specifications, ensuring durability and reliable performance. The EPDM material provides resistance to heat and automotive fluids, contributing to the hose’s longevity. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship.