Dayco 71211 Radiator Coolant Hose - Upper

Dayco Curved Radiator Hose 71211

Dayco 71211 is a curved radiator coolant hose built for upper radiator routing on select Ford trucks and vans. Made from EPDM rubber in black, it uses a dual I.D. hose design with 1 3/4 in. and 2 in. inside diameters to match the listed cooling system applications.

Compatible With Ford F-250, Ford F-350, Ford F-150, and Ford E-Series applications that use the specified 37 in. radiator configurations, this hose is a direct-fit cooling system service part for upper hose replacement. The Dayco Curved Radiator Hose line focuses on formed hose geometry and OE-style sizing for vehicles that require a shaped coolant hose path.

Key Features

• EPDM construction for radiator coolant service
• Black finish for a factory-style appearance
• Dual I.D. hose with 1 3/4 in. and 2 in. end diameters
• Curved hose shape for upper radiator routing
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Fits upper hose applications on select Ford F-250, F-350, F-150, and E-Series models

Detailed Description

Dayco part number 71211 is a radiator coolant hose engineered for upper radiator connections where a formed, curved profile is required. The EPDM rubber construction is suited for coolant exposure and everyday engine bay temperatures, while the dual inside diameter design supports the listed Ford cooling system fitments. This hose is specified for 37 in. radiator applications and select standard cooling configurations, including certain Ford F-250 and F-350 trucks as well as E-250, E-350, and E-350 Econoline Club Wagon models. It also cross-references with Gates 21403 for the same application.

What It Helps Address

• Cracked or aged upper radiator hose material
• Coolant leaks at the hose connection points
• Improper hose routing on curved upper radiator runs
• Softening, swelling, or deterioration from heat and coolant exposure
• Cooling system service needs on select Ford truck and van platforms

Installation Notes and Tips

• Verify radiator size, engine bay routing, and the listed year/make/model fitment before installation.
• Inspect hose clamps, necks, and adjacent cooling components for wear before reassembly.
• Confirm the hose orientation matches the curved upper radiator path on the vehicle.
• Use clean coolant system surfaces to help achieve a secure seal at both ends.

Quality Assurance

This hose is built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for radiator coolant service. Dayco 71211 is intended for the listed Ford applications and follows the dimensional and material requirements shown in the product data.

Fitment

• Fits 1990-1994 Ford F-250, Upper — 37 In. Rad.; Curved Radiator Hose
• Fits 1988 Ford F-250, Upper — 37 In. Rad.; Curved Radiator Hose
• Fits 1990-1994 Ford F-350, Upper — 37 In. Rad.; Curved Radiator Hose
• Fits 1988 Ford F-350, Upper — 37 In. Rad.; Curved Radiator Hose
• Fits 1989-1992 Ford E-350 Econoline, Upper — w/o Ambulance Pkg.; Curved Radiator Hose
• Fits 1989-1992 Ford E-350 Econoline Club Wagon, Upper — w/o Ambulance Pkg.; Curved Radiator Hose
• Fits 1989-1991 Ford E-250 Econoline Club Wagon, Upper — w/o Ambulance Pkg.; Curved Radiator Hose
• Fits 1989 Ford F-250, Upper — with 37in Radiator; with A/C; with Standard Cooling; Curved Radiator Hose
• Fits 1989 Ford F-350, Upper — with 37in Radiator; with A/C; with Standard Cooling; Curved Radiator Hose
• Fits 1983-1987 Ford F-250, Upper — with 37in Radiator; with Standard Radiator; without A/C; Curved Radiator Hose
• Fits 1983-1987 Ford F-350, Upper — with 37in Radiator; with Standard Radiator; without A/C; Curved Radiator Hose
• Fits 1984 Ford F-150, Upper — with 37in Radiator; with Standard Radiator; without A/C; Curved Radiator Hose
• Fits 1983 Ford E-250 Econoline Club Wagon, Upper — with 37in Radiator; with Standard Radiator; without A/C; Curved Radiator Hose
• Fits 1983 Ford E-350 Econoline, Upper — with 37in Radiator; with Standard Radiator; without A/C; Curved Radiator Hose
• Fits 1983 Ford E-350 Econoline Club Wagon, Upper — with 37in Radiator; with Standard Radiator; without A/C; Curved Radiator Hose