Dayco
Curved Radiator Hose

Dayco 72020 Radiator Coolant Hose - Upper

Brand Dayco 72020
Position Upper
Color Black
End 1 Inside Diameter 1 3/4
End 2 Inside Diameter 1 3/4
Hose Type Single I.D. Hose
Material EPDM
SAE Specification SAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height 24
Product line Curved Radiator Hose
Fits Dodge · 10 vehicles

Curved hose design. Helps route coolant smoothly with fewer bends and less stress.

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

Single I.D. radiator coolant hose for straightforward replacement.

Cross-references ACDelco 26396X, CARQUEST 22645 and Chrysler 52028715 for the same application. See all 8.

$38.85Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $38.85
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Free returns within 60 days if it doesn't fit when fitment is verified.

Dayco Curved Radiator Hose for Ram 2500/3500

The Dayco 72020 is a curved radiator coolant hose built for upper cooling-system routing on select Dodge Ram heavy-duty trucks. Made from EPDM rubber and formed as a single I.D. hose, it provides a direct replacement option for the 1998-2002 Dodge Ram 2500 and 1998-2002 Dodge Ram 3500.

Key Features

  • EPDM construction for coolant-system durability
  • Black finish for a clean OE-style appearance
  • 1 3/4 in. inside diameter at both ends
  • Single I.D. hose design for upper radiator routing
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Compatible with 1998-2002 Dodge Ram 2500 upper radiator hose applications
  • Compatible with 1998-2002 Dodge Ram 3500 upper radiator hose applications

Product Details

Dayco 72020 is part of the Curved Radiator Hose line, a product line focused on formed coolant hoses that follow factory-style routing and dimensions. This hose measures 24 in. in trunk height and uses EPDM material to handle the demands of engine coolant circulation. The 1 3/4 in. end diameters and curved shape make it a direct-fit replacement for upper radiator hose service on Ram 2500 and Ram 3500 trucks. This part cross-references Gates 22645 for the same application.

Common Cooling Issues This Hose Can Address

  • Cracked or split upper radiator hose material
  • Coolant leaks at the hose body or ends
  • Softening, swelling, or heat-related hose deterioration
  • Restricted coolant flow caused by a damaged hose
  • Loss of proper hose routing after replacement or repair

Installation Notes and Tips

Verify the hose shape, end diameters, and routing against the original part before installation. Inspect the radiator neck, engine connection points, and clamps for wear or corrosion, and replace any damaged sealing surfaces before filling the cooling system. Confirm the hose is positioned without kinks or twist during installation on the upper radiator route.

Quality Assurance

Dayco manufactures cooling-system hoses to meet published SAE specifications, including SAE J20R4 Class D-1 and SAE J1684 Type EC. That specification-based construction supports consistent fitment and material performance for Ram 2500 and Ram 3500 cooling-system service.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002DodgeRam 25005.9LL6UpperCurved Radiator Hose
2002DodgeRam 35005.9LL6UpperCurved Radiator Hose
2001DodgeRam 25005.9LL6UpperCurved Radiator Hose
2001DodgeRam 35005.9LL6UpperCurved Radiator Hose
2000DodgeRam 25005.9LL6UpperCurved Radiator Hose
2000DodgeRam 35005.9LL6UpperCurved Radiator Hose
1999DodgeRam 25005.9LL6UpperCurved Radiator Hose
1999DodgeRam 35005.9LL6UpperCurved Radiator Hose
1998DodgeRam 25005.9LL6UpperCurved Radiator Hose
1998DodgeRam 35005.9LL6UpperCurved Radiator Hose
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 26396XCARQUEST — 22645Chrysler — 52028715Duralast — E72020Freshstart — 1279Gates — 22645Goodyear — 62307NAPA — 9278