Dayco
Curved Radiator Hose

Dayco 72698 Radiator Coolant Hose - Lower

Brand Dayco 72698
Position Lower
Material Epdm
Color Black
End 1 Inside Diameter 1 23/32
End 2 Inside Diameter 1 23/32
End 3 Inside Diameter 31/32
End 4 Inside Diameter 23/32
Contains Heat Shield N
Contains Protective Sleeve N
End 1 Outside Diameter 2 1/16
End 2 Outside Diameter 2 1/16
End 3 Outside Diameter 1 3/8
End 4 Outside Diameter 1 3/32
End 5 Inside Diameter 23/32
End 5 Outside Diameter 1 3/32
Hose Type Branched hose
SAE Specification Sae j20r4 class d-1, sae j1684 type ec
Trunk Height 16
Product line Curved Radiator Hose
Fits Ford · 15 vehicles

Curved hose design. Routes coolant smoothly through the cooling system.

EPDM construction. Resists heat and coolant exposure for dependable service.

Branched hose. Provides multiple connections in one coolant hose.

Cross-references ACDelco 25534L, Duralast E72698 and Ford XL3Z-8286-CA for the same application. See all 6.

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Curved Lower Radiator Hose for Ford F-150

Dayco 72698 is a curved radiator coolant hose built for lower cooling-system routing on select Ford trucks with an oil cooler. Made from EPDM and finished in black, this branched hose is shaped to follow the factory path and support reliable coolant flow in demanding engine bay conditions.

Compatible with 1999-2003 Ford F-150, lower, w/Oil Cooler; Curved Radiator Hose, and 2004 Ford F-150 Heritage, lower, w/Oil Cooler; Curved Radiator Hose. This Dayco 72698 hose is a direct-fit cooling replacement for applications that require the OE-style curved layout.

Key Features

  • Dayco Curved Radiator Hose line for factory-style cooling system routing
  • EPDM construction for coolant-system durability
  • Black finish for a clean OE-style appearance
  • Branched hose design for the specified lower radiator hose application
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • End dimensions: 1 23/32 in. inside diameter at ends 1 and 2, with additional branch dimensions listed for the application

Product Details

Dayco 72698 is engineered as a lower radiator coolant hose for Ford F-150 and Ford F-150 Heritage models equipped with an oil cooler. The curved, branched layout helps match the original hose routing, while the EPDM material is selected for use in cooling systems exposed to heat, pressure, and coolant exposure. If you are replacing a worn lower radiator hose on a 1999-2003 Ford F-150 or a 2004 Ford F-150 Heritage, this part number provides the correct application-specific shape and connection sizing. Cross-reference part numbers for the same application include Gates 22860 and Motorcraft KM4579.

Common Problems This Hose Can Address

  • Coolant leaks from a cracked or aged lower radiator hose
  • Softening, swelling, or collapse of the original hose
  • Improper hose routing after a previous repair
  • Cooling-system seepage at the hose connection points
  • Replacement needs on Ford F-150 lower hose applications with an oil cooler

Installation Notes and Tips

Verify the vehicle year, engine configuration, and oil cooler setup before installation. Compare the original hose shape and connection sizes to Dayco 72698 to confirm the branched routing matches the factory layout. Inspect hose clamps, radiator necks, and adjoining coolant pipes for wear or corrosion before installing the new hose. After installation, refill the cooling system with the correct coolant and check for leaks at operating temperature.

Quality Assurance

This Dayco curved radiator hose is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for cooling-system hose applications. Dayco 72698 is built for the specified Ford F-150 and Ford F-150 Heritage fitments and follows the dimensional and material requirements listed for this part.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeLitersCylindersFuel TypePositionNotes
2004FordF-150 HeritageRWD5.4LV8CNGLowerw/Oil Cooler; Curved Radiator Hose
2004FordF-150 HeritageRWD5.4LV8BI-FUELLowerw/Oil Cooler; Curved Radiator Hose
2003FordF-150RWD5.4LV8CNGLowerw/Oil Cooler; Curved Radiator Hose
2003FordF-150RWD5.4LV8BI-FUELLowerw/Oil Cooler; Curved Radiator Hose
2003FordF-150RWD5.4LV8GASLowerw/Oil Cooler; Curved Radiator Hose
2002FordF-150RWD5.4LV8CNGLowerw/Oil Cooler; Curved Radiator Hose
2002FordF-150RWD5.4LV8BI-FUELLowerw/Oil Cooler; Curved Radiator Hose
2002FordF-150RWD5.4LV8GASLowerw/Oil Cooler; Curved Radiator Hose
2001FordF-150RWD5.4LV8CNGLowerw/Oil Cooler; Curved Radiator Hose
2001FordF-150RWD5.4LV8BI-FUELLowerw/Oil Cooler; Curved Radiator Hose
2001FordF-150RWD5.4LV8GASLowerw/Oil Cooler; Curved Radiator Hose
2000FordF-150RWD5.4LV8CNGLowerw/Oil Cooler; Curved Radiator Hose
2000FordF-150RWD5.4LV8BI-FUELLowerw/Oil Cooler; Curved Radiator Hose
2000FordF-150RWD5.4LV8GASLowerw/Oil Cooler; Curved Radiator Hose
1999FordF-1505.4LV8GASLowerw/Oil Cooler; Curved Radiator Hose
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 25534LDuralast — E72698Ford — XL3Z-8286-CAGates — 22860Motorcraft — KM4579NAPA — 9495