Gates 51691 Premium Modular Coolant Heater Hose with Branch Outlet

The Gates 51691 is a premium modular coolant hose designed for precision fit in specific automotive applications. This molded EPDM rubber hose features integrated components including a branch outlet, making it ideal for complex cooling system configurations where coolant must be routed to multiple locations.

Key Features:

• 8-inch centerline length with 1-5/8 inch (42mm) inside diameter at both main ends
• Integrated branch outlet with 1/4 inch (6mm) inside diameter for auxiliary coolant routing
• EPDM rubber construction with synthetic fiber knit reinforcement for superior durability
• Engineered to resist electrochemical degradation, the leading cause of coolant hose failure
• Specifically-designed materials resist collapse under vacuum conditions
• Molded design ensures OEM-exact fit with integrated quick-connect fittings and branch components
• Heat, ozone, and chemical coolant-resistant EPDM cover protects against environmental damage
• Temperature range from -40°F to +257°F (-40°C to +125°C) for reliable performance in extreme conditions
• Meets SAE 20R3 EC Class D1 and SAE 20R4 EC Class D1 specifications

This direct-fit replacement hose is manufactured to OEM specifications and includes essential integrated components such as hose branches, ensuring proper coolant flow throughout your vehicle's cooling system. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal seal and system integrity.

OEM Cross-References: Replaces Land Rover LR049990, Jaguar 9W838555CC, Jaguar C2Z27933, Jaguar C2Z28258, ACDelco 20846S, and NAPA 51691.

Note: Not for use in fuel or oil transfer applications. Designed specifically for engine coolant systems.