Dayco 71970 Radiator Coolant Hose - Lower

Dayco 71970 Curved Radiator Hose

Dayco 71970 is a curved radiator coolant hose built for lower cooling-system routing on select Mitsubishi applications. Made from EPDM and finished in black, it provides a direct-fit replacement for the lower hose path used on Mitsubishi Montero Sport and Montero models.

The Dayco Curved Radiator Hose line focuses on application-specific hose shapes and OE-style dimensions for cooling system service. This Dayco 71970 hose follows that approach with a single I.D. hose design and matching 1 5/16-inch inside diameter at both ends.

Key Features

• 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
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Curved lower radiator hose profile for the listed Mitsubishi fitments

Fitment Details

• Fits 1997-2004 Mitsubishi Montero Sport, lower
• Fits 1995-1996 Mitsubishi Montero, lower

This part cross-references Duralast E71970 for the same application.

What It Helps Address

• Cracked or hardened lower radiator hose material
• Coolant leaks at the hose body or connection points
• Restricted coolant flow caused by hose deterioration
• Incorrect hose shape on Mitsubishi Montero Sport or Montero lower radiator routing
• Cooling-system service needs during radiator or thermostat repairs

Installation Notes

Verify the hose routing, end diameters, and lower-position fitment before installation. Inspect the mating necks, clamps, and adjacent cooling-system components for wear or corrosion, and replace any damaged parts during service. Confirm the hose follows the original curved path on the vehicle to avoid kinks or tension in the cooling circuit.

Quality Assurance

This Dayco radiator coolant hose is manufactured to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling-system hose applications.