Dayco 72110 Radiator Coolant Hose

Curved Radiator Hose for OE-Style Cooling Service

Dayco Curved Radiator Hose 72110 is a radiator coolant hose built for direct cooling-system service on select Chevrolet, Nissan, INFINITI, and Toyota applications. Made from EPDM rubber and formed as a single I.D. hose, it provides the curved routing needed for upper radiator connections and related coolant paths.

Compatible With 2006-2011 Chevrolet HHR, 2001-2004 Nissan Pathfinder, 2001-2003 INFINITI QX4, and 1985-1986 Toyota Corolla applications that use a 1 5/16-inch hose connection.

Key Features

• Dayco Curved Radiator Hose, part number 72110
• EPDM construction for coolant-system use
• Black finish for a clean OE-style appearance
• 1 5/16-inch inside diameter at both ends
• Single I.D. hose design for curved radiator routing
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• No heat shield and no protective sleeve

Product Details

The Dayco Curved Radiator Hose 72110 is shaped for upper radiator and filler-neck routing where a formed hose is required. Its EPDM rubber construction is suited for coolant exposure and temperature cycling, while the matched 1 5/16-inch end diameters support a secure connection on the listed applications. This hose cross-references ACDelco 20082S and Gates 20877 for the same application.

Vehicle coverage includes Chevrolet HHR upper radiator positions, Nissan Pathfinder upper hose applications, INFINITI QX4 upper hose service, and Toyota Corolla upper radiator routing. If you are replacing a worn hose on a Chevrolet HHR, Nissan Pathfinder, or INFINITI QX4, this formed hose matches the listed fitment and routing requirements.

What It Helps Address

• Coolant leaks from cracked or aged radiator hose rubber
• Softening, swelling, or collapse in the upper coolant hose
• Improper hose routing caused by a damaged formed hose
• Loss of coolant flow at the radiator connection
• Service replacement for a hose with heat-cycle wear

Installation Notes and Tips

Verify hose routing, end diameter, and position before installation. This hose is listed for Front Upper, Upper - Tee To Radiator, Upper - Radiator To Filler Neck, and Upper positions depending on vehicle application. Inspect adjoining necks, clamps, and coolant condition before reassembly, and confirm the hose seats fully on clean connection points.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for radiator coolant hose service. The formed EPDM construction and application-specific dimensions support consistent fitment on the listed Chevrolet HHR, Nissan Pathfinder, INFINITI QX4, and Toyota Corolla applications.