Gates 52456 Molded Coolant Hose

The Gates 52456 is a factory-molded replacement coolant hose engineered to OEM specifications for a precise, leak-free fit. Designed as a direct-fit replacement, this molded radiator hose eliminates the guesswork of universal hose cutting and fitting, saving time during installation.

Gates molded coolant hoses are constructed with an EPDM tube, synthetic fiber knit reinforcement, and an EPDM outer cover, delivering superior resistance to heat, ozone, and chemical coolants. A key engineering feature is its resistance to Electrochemical Degradation (ECD) — the leading cause of coolant hose failure — which occurs when the hose, liquid coolant, and metal fittings form a galvanic cell that causes micro-cracks in the hose wall.

Key Features:

• Factory-molded for an exact OEM-style fit
• EPDM tube and cover with synthetic fiber knit reinforcement
• Engineered to resist electrochemical degradation (ECD)
• Resists vacuum collapse without the need for internal springs
• Heat, ozone, and chemical coolant resistant
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Meets SAE 20R4 EC Class D1 requirements
• Approved for marine applications
• Not intended for fuel or oil transfer applications

Gates recommends replacing hose clamps each time a new coolant hose is installed to ensure a properly sealed cooling system.