Dayco 71803 Curved Molded Radiator Coolant Hose - EPDM Upper Branched Hose

The Dayco 71803 is a molded curved radiator coolant hose designed as a direct OE-replacement for various automotive cooling systems. This upper position branched radiator hose features premium EPDM (Ethylene Propylene Diene Monomer) rubber construction with knitted rayon reinforcement for exceptional durability and performance in demanding engine environments.

Key Features:

• All-synthetic EPDM rubber construction with knitted reinforcement provides superior strength and burst resistance
• Branched hose design with four connection points: End 1 (1-1/4"), End 2 (1-1/4"), End 3 (5/8"), End 4 (1")
• 27.5-inch overall trunk height for proper fitment
• Temperature range: -40°F to +257°F (-40°C to +125°C)
• Exceeds SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Resistant to oil, mud, salt, road debris, ozone, and coolant chemicals
• Black color for OEM appearance

This precision-molded radiator hose is manufactured to exact OEM specifications, ensuring proper fit and reliable performance. The knitted rayon-reinforced inner tube delivers maximum strength and burst resistance for the life of the hose, while the EPDM cover withstands harsh underhood conditions. Cross-references: Gates 22277, NAPA 8910, AC Delco 26399X, Volkswagen 1HM121101.