Gates 18596 HVAC Heater Hose - Throttle Body Outlet

Overview of Gates Molded Heater Hose 18596

The Gates Molded Heater Hose 18596 is designed specifically for Kia Optima models, providing reliable HVAC system performance. Constructed from durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's heating system.

• Made from high-quality EPDM rubber for heat and chemical resistance
• Molded design for precise fit and leak prevention
• Centerline length of 7.5 inches (191 mm) for exact OEM replacement
• End 1 inside diameter: 0.29 inches (7 mm)
• End 2 inside diameter: 0.34 inches (9 mm)
• Compatible with Kia Optima HVAC systems

Detailed Product Description

The Gates Molded Heater Hose 18596 is engineered to meet the specific HVAC hose requirements of the Kia Optima. Its EPDM construction offers excellent resistance to heat, ozone, and automotive fluids, making it suitable for the demanding environment of the vehicle’s heating system. The molded design ensures a precise fit with no need for additional clamps or fittings, reducing the risk of leaks and improving system reliability. With a centerline length of 7.5 inches (191 mm), this hose matches OEM specifications for seamless integration.

The hose features two different inside diameters at each end—0.29 inches (7 mm) and 0.34 inches (9 mm)—to accommodate the specific connection points within the Kia Optima’s HVAC system. This part is a direct replacement, designed to maintain proper coolant flow and heater core function.

Applications and Common Issues Addressed

• Replacement of cracked or leaking heater hoses in Kia Optima models
• Restoring proper coolant flow to the heater core
• Preventing coolant leaks that cause engine overheating
• Eliminating heater system malfunctions due to hose degradation
• Maintaining HVAC system efficiency and cabin heating performance

Installation Notes and Tips

When installing the Gates Molded Heater Hose 18596, ensure the vehicle is cool and the cooling system is depressurized. Verify the hose orientation matches the OEM routing to avoid kinks or stress points. The molded design allows for a secure fit without additional fittings, but inspect all connection points for wear or damage before installation. Properly secure the hose to prevent movement and potential leaks during operation.

Quality Assurance and Warranty

Gates is a recognized manufacturer of automotive hoses, and the Molded Heater Hose product line is designed to meet or exceed OEM standards. The EPDM material and molded construction provide durability and resistance to common automotive fluids and heat exposure. While specific warranty details for part number 18596 are not provided here, Gates products typically come with manufacturer-backed quality assurance to support reliable performance in Kia Optima vehicles.