Gates 12251 HVAC Heater Hose - Heater Outlet

Overview of Gates Molded Heater Hose 12251

The Gates Molded Heater Hose 12251 is designed specifically for Subaru Legacy and Outback models. Constructed from durable EPDM material, this molded heater hose ensures reliable performance in your vehicle's HVAC system.

• Made from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and easy installation
• Inside diameter of 0.59 inches (15 mm) on both ends
• Centerline length of 21.56 inches (548 mm)
• Compatible with Subaru Legacy and Outback HVAC systems

About the Molded Heater Hose Product Line

The Molded Heater Hose line by Gates offers pre-formed hoses engineered to match exact OEM specifications. This reduces installation time and ensures a secure fit within the HVAC system. The molded construction helps maintain hose shape and prevents kinking, which is critical for consistent coolant flow and heater performance.

Detailed Product Description

The Gates Molded Heater Hose 12251 features an EPDM rubber construction known for its resistance to heat, ozone, and automotive fluids. Both ends of the hose have an inside diameter of 0.59 inches (15 mm), making it compatible with the heater core and engine connections in Subaru Legacy and Outback vehicles. The hose measures 21.56 inches (548 mm) in centerline length, providing the correct routing length for these models. This molded hose does not include quick connect fittings or branches, simplifying the installation process.

Common Applications and Issues Addressed

• Replacement of cracked or leaking heater hoses in Subaru Legacy and Outback
• Restoring proper coolant flow to the HVAC heater core
• Preventing coolant leaks that cause engine overheating or heater failure
• Eliminating hose kinks or collapses that restrict coolant circulation
• Maintaining HVAC system efficiency and cabin heating performance

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old heater hose to avoid burns
• Verify hose routing matches OEM specifications to prevent interference or kinks
• Use appropriate clamps to secure the hose ends firmly
• Inspect surrounding components for wear or damage during installation
• Check for leaks after installation by running the engine and monitoring coolant flow

Quality Assurance and Warranty

Gates Molded Heater Hose 12251 is manufactured to meet strict quality standards for durability and performance. The EPDM material provides resistance to heat and automotive fluids, contributing to long service life. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship.