Dayco 72781 Upper Radiator Coolant Hose

The Dayco 72781 is an upper radiator coolant hose engineered as a direct replacement for OEM cooling system hoses. Constructed from premium EPDM (ethylene propylene diene monomer) rubber, this molded radiator hose delivers reliable performance and long-lasting durability in demanding engine environments.

Key Features:

• Dual I.D. curved hose design for precise fitment
• EPDM rubber construction resists oil, mud, salt, road debris, ozone, and coolants
• Knitted rayon reinforcement provides maximum strength and burst resistance
• Protective sleeve offers enhanced protection against abrasion
• Withstands temperature extremes from -40°F to +257°F (-40°C to +125°C)
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC electro-chemical requirements
• Backed by Dayco's 1-year or 12,000-mile limited warranty

This molded radiator hose features electro-chemical resistance that prevents inner tube deterioration caused by static electric charge buildup, ensuring reliable cooling system performance throughout the service life. The knitted reinforcement and quality EPDM construction provide superior resistance to cracking, hardening, and swelling compared to conventional rubber hoses.