Dayco 72396 Radiator Coolant Hose - Lower or Upper

Dayco Curved Radiator Hose 72396

Dayco 72396 is a curved radiator coolant hose built for direct replacement in select Ford, Mazda, and Lexus applications. It uses EPDM construction and a dual I.D. hose design to match the required coolant routing and connection sizes for the listed vehicles.

Key Features

• EPDM rubber construction for coolant-system service
• Black finish
• Dual I.D. hose design with 1 9/32 in. end 1 inside diameter and 1 1/2 in. end 2 inside diameter
• Curved radiator hose profile for routed cooling-system layouts
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible with upper and lower radiator hose applications where listed

Detailed Description

Dayco 72396 is a radiator coolant hose for vehicles that require a curved hose shape and dual inside diameters. The EPDM material is selected for cooling-system use, while the SAE J20R4 Class D-1 and SAE J1684 Type EC specifications provide a clear reference for hose construction and performance requirements. This part number, 72396, is listed for upper hose service on 2001-2011 Ford Ranger and 2001-2010 Mazda B2300, and for lower hose service on 2007-2009 Lexus RX350.

The Dayco Curved Radiator Hose line focuses on replacement hoses that follow the original routing and connection geometry needed in modern cooling systems. For buyers searching for a Ford Ranger upper radiator hose, Mazda B2300 coolant hose, or Lexus RX350 lower radiator hose, Dayco 72396 provides a fitment-specific option with the correct curved profile and dual I.D. sizing. This part cross-references Ford (e.g., 2L5Z-8260-CA, 3L54-8B274-CA) for the same application.

What It Helps Address

• Coolant leaks from a cracked, hardened, or split radiator hose
• Restricted coolant flow caused by hose collapse or internal deterioration
• Improper hose routing in curved upper or lower cooling-system runs
• Fitment issues from incorrect inside diameter sizing
• Service replacement for worn Ford Ranger, Mazda B2300, or Lexus RX350 radiator hoses

Installation Notes and Tips

Verify the hose routing, end diameters, and position before installation. Confirm whether the vehicle uses an upper or lower radiator hose application, then compare the existing hose shape to the curved profile of Dayco 72396. Inspect clamps, necks, and adjoining cooling-system components for wear or corrosion before reassembly. This hose does not include a heat shield or protective sleeve.

• Fits 2001-2011 Ford Ranger, Upper
• Fits 2001-2010 Mazda B2300, Upper
• Fits 2007-2009 Lexus RX350, Lower

Quality Assurance

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