Gates 12539 Molded Heater Hose 5/16" x 5/16" x 16.5" with Check Valve

The Gates 12539 is a precision-molded heater hose designed for reliable coolant delivery in automotive heating systems. This pre-formed hose features 5/16" inlet and outlet connections with a 16.5" overall length, engineered to provide an exact OEM fit for specific vehicle applications.

Key Features:

• Integrated check valve prevents coolant backflow and maintains proper system pressure
• Pre-molded construction ensures proper routing and eliminates installation guesswork
• EPDM rubber compound resists coolant chemicals, ozone, and temperature extremes
• Reinforced construction prevents collapse under vacuum conditions
• 5/16" diameter connections on both ends for secure fitment

Gates is a trusted OE supplier known for precision-engineered cooling system components. This molded heater hose delivers the quality and durability professional technicians and DIY enthusiasts demand for long-lasting repairs.