Dayco 72547 Radiator Coolant Hose - Upper

Dayco 72547 Curved Radiator Hose for Toyota 4Runner

Dayco 72547 is a curved radiator coolant hose built for the upper cooling circuit on select Toyota 4Runner models. Made from EPDM and finished in black, it provides the correct formed shape and hose sizing for a direct replacement in the engine cooling system.

Compatible with 2010-2024 Toyota 4Runner, upper, this Dayco Curved Radiator Hose supports a clean OE-style fit for routine cooling system service. The hose follows the application-specific bend needed for the upper radiator connection and uses SAE J20R4 Class D-1 and SAE J1684 Type EC specifications.

Key Features

• Dayco Curved Radiator Hose, part number 72547
• EPDM construction for cooling system use
• Black finish
• Single I.D. hose design
• End 1 inside diameter: 1 5/16 in.
• End 2 inside diameter: 1 5/16 in.
• End 1 outside diameter: 1 11/16 in.
• End 2 outside diameter: 1 11/16 in.
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Fits the upper radiator hose position on Toyota 4Runner applications

Product Details

Dayco 72547 is part of the Curved Radiator Hose line, a product line focused on formed coolant hoses that match the routing required by specific vehicle cooling systems. For 2010-2024 Toyota 4Runner upper radiator hose service, this formed EPDM hose helps maintain the correct path between cooling system connections while matching the listed inlet and outlet diameters. This part cross-references Toyota (e.g., 16571-31270) for the same application.

Common Cooling System Issues This Hose Can Address

• Cracked or hardened upper radiator hose material
• Coolant seepage at the hose connection points
• Loss of hose flexibility from age and heat cycling
• Incorrect hose shape after prior replacement
• Cooling system service on a Toyota 4Runner upper hose circuit

Installation Notes and Tips

Verify the upper hose routing and connection diameters before installation. Inspect the radiator neck, engine-side fitting, and clamps for wear or corrosion, and replace any damaged sealing surfaces before installing the new hose. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator coolant hose applications. The EPDM construction and formed profile support consistent fitment for the specified Toyota 4Runner upper hose application.