Gates 25684 Molded Coolant Hose

The Gates 25684 is a precision-molded engine coolant hose engineered to OEM specifications for a direct-fit replacement. Part of Gates' industry-leading molded coolant hose lineup, this hose is pre-shaped to fit specific vehicle applications, ensuring a proper seal and reliable performance without modification.

Key Features:

• OEM-quality construction — manufactured to match original equipment specifications for a precise, leak-free fit
• EPDM tube and cover — resists heat, ozone, and chemical coolants for long-lasting durability
• Electrochemical degradation (ECD) resistance — engineered with compounds that combat the leading cause of coolant hose failure
• Vacuum collapse resistance — specially engineered materials maintain hose shape under pressure, reducing the need for internal springs
• Temperature range: -40°F to +275°F (-40°C to +135°C) — suitable for all-climate operation
• Meets SAE 20R4 EC Class D1 standards — tested and certified to industry performance requirements
• Synthetic fiber knit reinforcement — provides structural integrity and pressure resistance

Gates' molded coolant hose line is one of the most comprehensive replacement hose lines available on the aftermarket market, offering coverage for upper, lower, bypass, and heater coolant circuit positions. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal sealing.