Gates 52052 Molded EPDM Coolant Radiator Hose

The Gates 52052 is a premium molded coolant hose engineered to provide OEM-quality performance for upper, lower, bypass, heater, and other radiator cooling system applications. This factory-molded hose is precision-shaped to ensure a perfect fit and proper sealed conditions for reliable engine cooling.

Key Features:

• 13-inch centerline length with dual inside diameters: 1-5/16" (33mm) on one end and 1-1/8" (29mm) on the other
• EPDM rubber construction with synthetic fiber reinforcement for superior durability
• Engineered to resist electrochemical degradation (ECD), the leading cause of coolant hose failure
• Specifically-engineered materials resist vacuum collapse without internal springs
• Heat and ozone resistant with temperature range from -40°F to +257°F (-40°C to +125°C)
• Pre-shaped design ensures perfectly sealed connections
• Meets SAE 20R4 EC Class D1 specifications

Gates molded coolant hoses are manufactured with EPDM compounds that resist the electrochemical degradation that occurs when coolant, hose material, and metal fittings create a galvanic reaction. This resistance to ECD extends hose life and prevents the micro-cracks that lead to coolant leaks and engine damage. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal performance.