Gates 51818 Premium Modular Coolant Hose with Female Quick Connector - Branched Design

The Gates 51818 Premium Modular Coolant Hose is a precision-engineered branched coolant hose assembly designed for complex cooling system applications. This 53.5-inch modular hose features multiple connection points with varying diameters (1-5/16", 1-5/16", 11/16", 23/32", 23/32") and includes an integrated female quick connector for easy installation.

Construction and Materials:

• EPDM (ethylene propylene diene monomer) tube provides superior coolant compatibility
• Synthetic fiber knit reinforcement for strength and durability
• Heat-, ozone-, and chemical coolant-resistant EPDM cover
• Re-engineered materials resist vacuum collapse, reducing the need for internal springs
• Engineered with compounds that resist electrochemical degradation (ECD), the leading cause of coolant hose failure

Performance Specifications:

• Temperature range: -40°F to +257°F (-40°C to +125°C)
• Meets SAE 20R3 EC Class D1 standards for hoses under 1-inch ID
• Meets SAE 20R4 EC Class D1 standards for hoses 1-inch ID and over
• Manufactured with OEM-exact hose components including quick connects, branch connectors, and tees

Application and Installation:

• Designed for radiator and cooling system applications requiring branched hose assemblies
• Pre-configured with integrated OE-style components for direct-fit installation
• Gates recommends replacing hose clamps each time a new coolant hose is installed

Important Safety Note: Do not use for fuel or oil transfer applications. This hose is designed specifically for engine coolant circulation.