Dayco 72376 Radiator Coolant Hose - Upper

Curved Upper Radiator Hose for GM Trucks

Dayco 72376 is a curved radiator coolant hose built for upper engine cooling service on select 2007 Chevrolet Silverado Classic and GMC Sierra Classic trucks. Made from EPDM and finished in black, it matches the dimensions needed for a direct replacement on listed applications.

This Dayco Curved Radiator Hose line focuses on OE-style cooling system fitment, with a single I.D. hose construction and SAE J20R4 Class D-1 / SAE J1684 Type EC compliance. For buyers searching for a 2007 Chevrolet Silverado 1500 Classic upper radiator hose or a 2007 GMC Sierra 2500 HD Classic coolant hose, Part Number 72376 is the relevant replacement reference.

Key Features

• Brand: Dayco
• Part Number: 72376
• Curved radiator coolant hose for upper cooling system routing
• EPDM construction with black finish
• 1 5/16 in. inside diameter at both ends
• 1 11/16 in. outside diameter at both ends
• Single I.D. hose design
• SAE J20R4 Class D-1 and SAE J1684 Type EC specification
• No heat shield and no protective sleeve

Detailed Description

Dayco 72376 is a curved upper radiator hose engineered for the engine cooling circuit on select 2007 Chevrolet Silverado Classic and GMC Sierra Classic pickups. The EPDM rubber construction is suited to coolant service, while the matched end diameters support proper routing and connection at the upper radiator locations listed below. This part number is commonly searched as Dayco 72376 radiator hose, 72376 upper coolant hose, and curved radiator hose for Silverado and Sierra Classic models.

Compatible With: Fits 2007 Chevrolet Silverado 1500 Classic, Upper; Fits 2007 Chevrolet Silverado 1500 HD Classic, Upper; Fits 2007 Chevrolet Silverado 2500 HD Classic, Upper; Fits 2007 Chevrolet Silverado 3500 Classic, Upper; Fits 2007 GMC Sierra 1500 Classic, Upper; Fits 2007 GMC Sierra 1500 HD Classic, Upper; Fits 2007 GMC Sierra 2500 HD Classic, Upper; Fits 2007 GMC Sierra 3500 Classic, Upper. This part cross-references ACDelco 26559X and Gates 23184 for the same application.

Common Replacement Uses

• Replacing a cracked or hardened upper radiator hose
• Restoring coolant flow in the engine cooling system
• Addressing coolant seepage at the hose connection points
• Replacing a hose with incorrect curvature or fit
• Servicing a worn hose on a 2007 Chevrolet Silverado Classic or GMC Sierra Classic

Installation Notes and Tips

Verify the hose routing, end diameters, and upper radiator connection points before installation. Inspect clamps, necks, and adjoining cooling system components for wear or corrosion, and replace any damaged parts as needed. Confirm the hose is seated fully and routed without kinks or twist before refilling and bleeding the cooling system.

Quality Assurance

Dayco lists this hose to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting its use in coolant service applications. EPDM construction is a standard material choice for radiator hose service in engine cooling systems.