Dayco 72380 Radiator Coolant Hose - Upper

Dayco 72380 Curved Upper Radiator Hose

Dayco 72380 is a curved radiator coolant hose built for upper cooling-system routing on select GM full-size trucks and SUVs. Made from EPDM rubber with a black finish, it matches the diameter and bend profile needed for direct replacement service on applications such as Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon.

Key Features

• EPDM construction for coolant-system durability
• Black curved radiator hose for upper hose routing
• Single I.D. hose with 1 5/16 in. inside diameter at both ends
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Direct-fit replacement for select Cadillac, Chevrolet, GMC, and Saab applications
• Dayco part number 72380 for catalog and service matching

Product Details

This Dayco Curved Radiator Hose line is engineered for cooling-system service where a formed upper hose is required. The hose uses EPDM material for coolant exposure and temperature cycling, and its curved shape supports the factory routing used on many GM trucks and SUVs. Dayco 72380 is a practical replacement choice when servicing the upper radiator hose on vehicles such as the 2007-2014 Cadillac Escalade, 2007-2014 Chevrolet Tahoe, and 2007-2014 GMC Yukon.

Compatible With 2007-2014 Cadillac Escalade, upper; 2007-2014 Chevrolet Tahoe, upper; 2007-2014 GMC Yukon, upper; and other listed applications including Chevrolet Silverado 1500, GMC Sierra 1500, and Saab 9-7x. This part cross-references ACDelco 26559X and Gates 23184 for the same application.

Common Uses

• Replacing a cracked or softened upper radiator hose
• Restoring coolant flow after hose swelling or collapse
• Correcting leaks at the radiator hose connection points
• Servicing a worn hose on GM full-size SUV and pickup cooling systems
• Addressing heat-related hose deterioration in daily-driven vehicles

Installation Notes

Verify hose routing, end diameters, and position before installation. This hose has a 1 5/16 in. inside diameter at both ends and is listed for upper radiator hose applications only. Inspect clamps, radiator necks, and adjoining coolant components for wear or corrosion during service. Confirm fitment against the vehicle application before final assembly.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and performance standards for cooling-system replacement parts.