Dayco 72742 Molded Radiator Coolant Hose

The Dayco 72742 is a premium molded radiator coolant hose engineered to provide reliable OE-quality cooling system performance. This direct replacement hose features advanced construction designed to withstand the demanding conditions of modern automotive cooling systems.

Key Features:

• Knitted rayon reinforcement provides maximum strength and burst resistance throughout the hose's service life
• All-synthetic EPDM rubber construction for superior durability and longevity
• Engineered to meet SAE J20R4, Class D-1 requirements for quality assurance
• Meets SAE J1684 Type EC electro-chemical requirements to prevent inner tube deterioration from static charge buildup
• Protective sleeve and knitted reinforcement resist abrasion from engine vibration and movement
• Withstands extreme temperature variations from -40°F (-40°C) to +257°F (+125°C)
• Resistant to oil, mud, salt, road debris, ozone, and modern coolant formulations
• Precision-molded to OE specifications for proper fit and installation

Dayco molded radiator hoses are designed to replace original equipment hoses with the same fit, form, and function expected from a quality replacement part. The multi-layer construction ensures reliable performance in high-pressure cooling system environments while providing long-term resistance to the harsh chemicals and temperature extremes that cooling hoses must endure.