ContiTech 64347 Molded Heater Hose EPDM SAE - 20R3EC

The ContiTech 64347 is a precision-molded EPDM heater hose engineered to transfer glycol-based coolants to and from the heater core, through bypass circuits to the radiator, and across other critical components in a vehicle's cooling system. Molded to an original equipment configuration, this hose delivers a reliable, leak-free fit without modification.

Key Features:

• EPDM construction — tube, reinforcement, and cover are all EPDM for long-lasting durability and flexibility
• Synthetic knit reinforcement — resists pressure surges and maintains hose shape under operating conditions
• SAE 20R3EC Class D1 & D2 compliant — meets or exceeds original equipment specifications
• Electrochemical Degradation (ECR) resistant — protects against internal hose breakdown caused by electrolytic corrosion
• Broad coolant compatibility — compatible with ethylene glycol, propylene glycol, and organic acid technology (OAT) long-life coolants
• Wide temperature range — rated from -40°F to 275°F (-40°C to 135°C)
• Inside diameter: 0.750 in (¾ in)
• Hose length: approximately 14.88 in
• Not for use in fuel or oil transfer applications

ContiTech molded heater hoses are manufactured under the Continental brand — the same trusted name behind Goodyear automotive hose products — and are built to restore OEM cooling system performance. The 64347 is a direct-fit replacement designed for accurate, confident installation.