Gates 51522 Premium Molded Coolant Hose

The Gates 51522 Premium Molded Coolant Hose is a pre-shaped replacement radiator hose engineered to deliver OEM-quality performance for upper, lower, bypass, heater, and other coolant system applications. This precision-molded hose eliminates the need for costly dealer parts while ensuring reliable cooling system operation.

Key Features:

• Engineered to resist electrochemical degradation (ECD), the leading cause of coolant hose failure
• Pre-shaped design ensures perfect fit and completely sealed connections
• EPDM tube construction with synthetic fiber knit reinforcement for superior strength
• Heat-, ozone-, and chemical coolant-resistant EPDM cover
• Meets SAE 20R4 Class D2 and DIN 73411 Class A performance standards
• Approved for marine applications

Gates molded coolant hoses are manufactured with advanced materials that resist the electrochemical reactions between coolant, metal fittings, and the hose itself. This engineering prevents micro-cracking and premature failure, delivering extended service life compared to standard replacement hoses. The precision-molded shape ensures proper routing and eliminates installation stress on connections.