Gates 12355 Premium Molded Heater Hose

The Gates 12355 Premium Molded Heater Hose is an OEM-quality replacement hose designed for heater and coolant applications in automotive cooling systems. This factory-molded hose is engineered to resist electrochemical degradation, the leading cause of hose failure, ensuring reliable long-term performance in demanding under-hood environments.

Key Features:

• EPDM tube construction with synthetic fiber knit reinforcement and EPDM cover for superior durability
• Engineered to resist electrochemical degradation and water permeation
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications
• Wide temperature range: -40°F to 275°F (-40°C to 135°C)
• Factory-molded design replicates OEM specifications for precise fitment
• Approved for marine applications
• Compatible with air, water, and coolant transfer applications

Gates molded heater hoses are manufactured to exact specifications, providing the same quality and fit as original equipment while offering improved resistance to heat, ozone, and chemical coolant degradation. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal sealing and leak prevention.

Important: Do not use for fuel or oil transfer applications.