Dayco
Curved Radiator Hose

Dayco 72966 Radiator Coolant Hose - Lower

Brand Dayco 72966
Position Lower
Material Epdm
Color Black
End 1 Inside Diameter 1 1/16
End 2 Inside Diameter 1 1/16
Contains Heat Shield N
Contains Protective Sleeve N
End 1 Outside Diameter 1 13/32
End 2 Outside Diameter 1 13/32
Hose Type Single i.d. hose
SAE Specification Sae j20r4 class d-1, sae j1684 type ec
Trunk Height 12
Product line Curved Radiator Hose
Fits Honda · 7 vehicles

EPDM construction. Resists heat and coolant exposure for dependable cooling-system service.

Curved hose design. Follows the routing needed for a clean, efficient coolant connection.

SAE-spec compliant. Built to meet J20R4 Class D-1 and J1684 Type EC requirements.

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Dayco 72966 Curved Radiator Hose for Honda Fit

Dayco 72966 is a curved radiator coolant hose built for the lower cooling circuit on select Honda Fit models. Made from EPDM rubber and finished in black, it provides a direct-fit replacement for vehicles that need a lower curved radiator hose with matching inlet and outlet sizing.

Compatible with 2014-2020 Honda Fit, lower, this hose is sized with a 1 1/16 in. inside diameter at both ends and 1 13/32 in. outside diameter at both ends. The curved profile supports proper routing in the engine bay, and the hose meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications.

Key Features

  • Brand: Dayco Curved Radiator Hose
  • Part number: 72966
  • Fits 2014-2020 Honda Fit, lower
  • EPDM construction for cooling-system service
  • Black finish for OE-style appearance
  • Single I.D. hose design
  • End 1 inside diameter: 1 1/16 in.
  • End 2 inside diameter: 1 1/16 in.
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC

Product Details

Dayco’s Curved Radiator Hose line focuses on replacement hoses shaped for specific cooling-system routing needs. This Dayco 72966 hose follows that product line approach with a curved form factor that matches the lower radiator hose path on the Honda Fit. The EPDM rubber construction is suited for coolant service, while the standardized end dimensions help ensure a proper connection at both ends. If you are replacing a worn lower radiator hose on a Honda Fit, Dayco 72966 offers a direct replacement option for the 2014-2020 model years.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Cooling-System Issues

  • Cracked or hardened lower radiator hose
  • Coolant seepage at the hose connection points
  • Soft, swollen, or heat-aged hose material
  • Restricted coolant flow from a deteriorated hose
  • Incorrect hose routing after a previous repair

Installation Notes

Verify the lower hose routing and end diameters before installation on your Honda Fit. Inspect the radiator neck and engine-side connection points for corrosion, residue, or damage, and replace clamps if they no longer hold securely. After installation, refill the cooling system with the correct coolant and check for leaks with the engine at operating temperature.

Quality Assurance

Dayco 72966 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for radiator hose applications. The EPDM material and application-specific curved design support consistent fitment on the listed Honda Fit models.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2020HondaFitLowerCurved Radiator Hose
2019HondaFitLowerCurved Radiator Hose
2018HondaFitLowerCurved Radiator Hose
2017HondaFitLowerCurved Radiator Hose
2016HondaFitLowerCurved Radiator Hose
2015HondaFitLowerCurved Radiator Hose
2014HondaFit1.5LL4LowerCurved Radiator Hose