Dayco 71219 Radiator Coolant Hose - Upper
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Dayco

Dayco 71219 Radiator Coolant Hose - Upper

Brand Dayco 71219
Position Upper
Material Epdm
Color Black
End 1 Inside Diameter 2 1/4
End 2 Inside Diameter 2 1/2
Contains Heat Shield N
Contains Protective Sleeve N
Hose Type Dual i.d. hose
SAE Specification Sae j20r4 class d-1, sae j1684 type ec
Trunk Height 24
Fits —

EPDM construction. Resists heat and coolant exposure for dependable hose performance.

Dual I.D. hose. Provides two inside diameters in one curved coolant hose design.

SAE-rated hose. Built to meet SAE J20R4 Class D-1 and SAE J1684 Type EC.

Cross-references ACDelco 26114X, CARQUEST 21454 and Duralast E71219 for the same application. See all 10.

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Not what you need? See all Radiator Coolant Hose options

Dayco 71219 Curved Radiator Hose

Dayco 71219 is a curved radiator coolant hose built from EPDM for dependable coolant transfer in demanding engine bay conditions. Its dual I.D. design with 2 1/4 in. and 2 1/2 in. ends supports applications that require different inlet and outlet diameters, including select truck and heavy-duty cooling systems.

Key Features

  • EPDM construction for coolant hose service
  • Black finish for a clean OE-style appearance
  • Dual I.D. hose design with 2 1/4 in. and 2 1/2 in. inside diameters
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Curved radiator hose profile for routing around engine components
  • 24 in. trunk height

Product Details

This Dayco Curved Radiator Hose is engineered for radiator and coolant routing where a formed hose with unequal end diameters is required. The EPDM rubber construction is suited for hot coolant exposure, while the curved shape helps match factory-style hose routing in applications such as Navistar cooling systems and other medium-duty vehicle platforms. Dayco 71219 is a practical replacement choice when you need a radiator coolant hose with dual inside diameters and SAE-rated construction.

This part cross-references ACDelco 26114X and Gates 21454 for the same application.

Common Problems This Hose Can Address

  • Cracked or split radiator hose material
  • Coolant leaks at worn hose connections
  • Improper fit from a hose with the wrong inside diameter
  • Collapsed or softened hose sections from heat and age
  • Routing issues when replacing a curved coolant hose

Installation Notes and Tips

Verify the end diameters, hose length, and routing path before installation. Inspect hose necks, clamps, and adjoining cooling system components for wear or corrosion, and replace any damaged parts before filling the system. Confirm the hose follows the original curve without twisting so coolant flow remains unobstructed.

Quality Assurance

Dayco manufactures cooling system hoses to published SAE specifications, including SAE J20R4 Class D-1 and SAE J1684 Type EC, to support consistent material and performance standards.

Related reading

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 26114XCARQUEST — 21454Duralast — E71219Freshstart — 61303Gates — 21454Goodyear — 61303NAPA — 8168Navistar — 587984-C1Navistar — 1606425-C1Pirelli — 41303