Dayco 72504 Radiator Coolant Hose - Lower

Dayco Curved Radiator Hose for OE-Style Cooling Service

Dayco Part Number 72504 is a curved radiator coolant hose built for lower cooling-system routing where a formed hose is required. Made from EPDM rubber and finished in black, it uses a single I.D. hose design with 1 5/16-inch inside diameter at both ends for a direct replacement style fit.

This Dayco Curved Radiator Hose line focuses on accurate shape, material selection, and SAE-rated construction for radiator coolant service. For buyers searching for a lower radiator hose for Acura RDX, Cadillac CTS, or Hyundai Sonata applications, Part Number 72504 provides a fitment-specific option that matches the listed vehicle routing.

Key Features

• EPDM construction for coolant hose service
• Black finish for a clean OE-style appearance
• Single I.D. hose design
• 1 5/16-inch inside diameter at both ends
• Lower radiator hose application
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco Part Number 72504

Detailed Product Overview

Dayco 72504 is a curved radiator coolant hose engineered for lower hose routing in specific cooling systems. The EPDM rubber material is commonly used in coolant applications because it handles heat and fluid exposure found in radiator circuits. Its formed shape supports the curved routing needed in the listed Acura RDX, Cadillac CTS, and Hyundai Sonata applications, helping maintain proper hose alignment in the engine bay.

Use this hose when you need a lower radiator hose for 2007-2012 Acura RDX, lower; 2007 Cadillac CTS, lower; 2006 Cadillac CTS, lower; 1995-1998 Hyundai Sonata, lower; or 1992-1993 Hyundai Sonata, lower. Part Number 72504 also cross-references ACDelco 26578X for the same application.

What This Hose Helps Address

• Cracked or aged lower radiator hose material
• Coolant leaks at a worn hose section
• Improper hose shape or routing in the cooling system
• Softening, swelling, or deterioration from heat and coolant exposure
• Replacement needs for a formed lower coolant hose on listed vehicles

Installation Notes and Tips

Confirm the hose routing, end diameters, and position before installation. This hose is listed for lower radiator hose applications only, so match the vehicle year, make, model, and position exactly to the fitment data. Inspect adjoining clamps, necks, and coolant passages for wear or corrosion before installing the new hose.

After installation, refill the cooling system with the correct coolant, bleed air from the system, and verify there are no leaks at operating temperature. Dayco 72504 is a direct-fit style replacement for the listed applications, including Acura RDX, Cadillac CTS, and Hyundai Sonata lower hose locations.

Quality Assurance

This hose is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, supporting consistent material and performance requirements for radiator coolant service.