Gates 51603 Molded Coolant Hose

The Gates 51603 is a precision-molded coolant hose engineered to deliver OEM-quality performance for specific vehicle cooling system applications. This pre-shaped hose is manufactured with EPDM (ethylene propylene diene monomer) construction featuring synthetic fiber knit reinforcement and an EPDM cover, providing exceptional durability and reliability.

Key Features:

• Pre-shaped molded design ensures proper fit and perfectly sealed conditions
• Engineered to resist electrochemical degradation (ECD), the leading cause of coolant hose failure
• EPDM tube, synthetic fiber knit reinforcement, and EPDM cover construction
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Meets SAE 20R3 EC Class D1 specifications
• Manufactured to OEM-quality specifications
• Compatible with modern extended life coolants

Gates molded coolant hoses are factory-molded to exact manufacturer specifications, eliminating the need for expensive dealer replacements. The reinforced construction provides high burst strength and superior service life, while the EPDM materials resist heat, ozone, and chemical breakdown. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal sealing performance.