Dayco 72381 Radiator Coolant Hose - Lower

Dayco Curved Radiator Hose 72381 Overview

Dayco 72381 is a branched radiator coolant hose for select Ford E-Series vans with lower-position cooling system routing. Built from EPDM rubber with a protective sleeve, it is made for 2004-2009 Ford E-150, 2004-2009 Ford E-250, and 2004-2005 Ford E-150 Club Wagon applications without an oil cooler.

This curved radiator hose follows the OE-style path needed for proper coolant transfer in the lower cooling circuit. The Dayco Curved Radiator Hose line focuses on application-specific hose shapes and dimensions for direct replacement service on vehicles such as the Ford E-150 and Ford E-250.

Key Features

• Brand: Dayco
• Part number: 72381
• Part type: radiator coolant hose
• Branched hose design for lower cooling system routing
• EPDM construction with black finish
• Protective sleeve included
• SAE J20R4 Class D-1 and SAE J1684 Type EC specification
• End sizes: 1 3/4 in. x 1 3/4 in. x 1 in.

Detailed Description

Dayco 72381 is a curved radiator hose engineered for lower-position coolant routing on select Ford E-Series vans. Its branched layout, EPDM material, and protective sleeve support the hose shape and routing required in the engine bay, while the SAE J20R4 Class D-1 and SAE J1684 Type EC specifications identify it as a coolant hose built to recognized industry standards. This part cross-references Gates 22372 for the same application.

Compatible With 2004-2009 Ford E-150, lower; 2004-2009 Ford E-250, lower; and 2004-2005 Ford E-150 Club Wagon, lower. Use part number 72381 when matching the lower curved radiator hose on these Ford E-Series applications.

Common Cooling System Issues

• Cracked or hardened lower radiator hose material
• Coolant leaks at branched hose connections
• Incorrect hose routing after service or replacement
• Heat-related hose wear in the engine compartment
• Loss of coolant flow through the lower cooling circuit

Installation Notes and Tips

Verify the vehicle year, model, and lower-position routing before installation. Confirm the application is for vehicles without an oil cooler, and compare the hose shape, branch location, and end diameters to the original part before removal. Inspect adjoining clamps, fittings, and coolant passages for wear or contamination before installing the new hose.

Quality Assurance

Dayco manufactures cooling system hoses to OE-style fitment and specification targets, including SAE J20R4 Class D-1 and SAE J1684 Type EC for this part. The EPDM construction and protective sleeve support durability in demanding underhood conditions.