Dayco 70998 Radiator Coolant Hose - Upper

Dayco 70998 Curved Radiator Hose

Dayco 70998 is a curved radiator coolant hose built for upper cooling-system routing on select Ford E-250 Econoline Club Wagon and E-350 Econoline applications. Made from EPDM and finished in black, this dual I.D. hose is shaped to match the vehicle’s coolant path while meeting SAE J20R4 Class D-1 and SAE J1684 Type EC requirements.

The Dayco Curved Radiator Hose line focuses on replacement hoses with application-specific bends and OE-style dimensions. For buyers searching for a Ford E-250 Econoline Club Wagon upper radiator hose or a Ford E-350 Econoline upper coolant hose, this part number 70998 provides the correct curved profile and dual inside diameters for the listed fitments.

• EPDM construction for coolant-system service
• Black finish for a factory-style appearance
• Dual I.D. hose with 1 3/4 in. end 1 inside diameter and 2 in. end 2 inside diameter
• Upper radiator hose position
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Cross-references ACDelco 24268L and Gates 21156 for the same application

Fitment Details

Compatible With:

• Fits 1984-1988 Ford E-250 Econoline Club Wagon, Upper, Curved Radiator Hose
• Fits 1984-1988 Ford E-350 Econoline, Upper, Curved Radiator Hose
• Fits 1984-1988 Ford E-350 Econoline Club Wagon, Upper, Curved Radiator Hose

What This Hose Helps Address

• Upper radiator hose leaks from age-related cracking
• Coolant seepage at worn hose ends
• Softening or swelling from heat and coolant exposure
• Incorrect hose routing on replacement cooling repairs
• Restricted coolant flow caused by a deteriorated hose interior

Installation Notes and Tips

Verify the end diameters, routing shape, and upper hose position before installation. Inspect hose clamps, radiator necks, and engine-side connections for wear or corrosion, and replace damaged hardware as needed during cooling-system service. Confirm vehicle year, make, and model against the listed fitment for Ford E-250 Econoline Club Wagon and Ford E-350 Econoline applications before installation.

Quality Assurance

This Dayco radiator coolant hose is built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for cooling-system replacement use. The EPDM construction and application-specific curved design support proper fitment on the listed Ford applications, including the 1984-1988 Ford E-250 Econoline Club Wagon and 1984-1988 Ford E-350 Econoline.