Dayco
Curved Radiator Hose

Dayco 72976 Radiator Coolant Hose - Lower - Pipe To Engine

Brand Dayco 72976
Position Lower - Pipe To Engine
Material Epdm
Color Black
End 1 Inside Diameter 1 3/16
End 2 Inside Diameter 1 3/16
Contains Heat Shield N
Contains Protective Sleeve N
End 1 Outside Diameter 1 17/32
End 2 Outside Diameter 1 17/32
Hose Type Single i.d. hose
SAE Specification Sae j20r4 class d-1, sae j1684 type ec
Trunk Height 17
Product line Curved Radiator Hose
Fits Honda · 6 vehicles

Curved radiator hose. Formed for a cleaner routing path in cooling system applications.

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

SAE J20R4 Class D-1. Built to meet recognized coolant hose performance standards.

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Curved Radiator Hose for Honda Civic

Dayco 72976 is a curved radiator coolant hose for the lower pipe-to-engine location on select 2016-2021 Honda Civic models. Built from EPDM and finished in black, it is shaped for the cooling system routing used in this application.

Key Features

  • EPDM construction for coolant hose service
  • Black finish for a clean OE-style appearance
  • Single I.D. hose design
  • 1 3/16 in. inside diameter at both ends
  • 1 17/32 in. outside diameter at both ends
  • Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Curved radiator hose profile for lower pipe-to-engine routing

Product Details

Dayco Curved Radiator Hose 72976 is a radiator coolant hose made for the lower pipe-to-engine position on 2016-2021 Honda Civic vehicles. The EPDM rubber construction is suited for coolant transfer in the engine cooling system, while the curved shape follows the routing required in this application. This hose measures 1 3/16 inches inside diameter at both ends and 1 17/32 inches outside diameter at both ends, with a 17-inch trunk height.

The Dayco curved radiator hose line focuses on application-specific hose geometry for cooling system service. For Honda Civic cooling system repair, Dayco 72976 provides the correct lower hose routing for the listed fitment and supports direct replacement needs without adding extra components.

Common Problems This Hose Can Address

  • Cracked or deteriorated lower radiator hose material
  • Coolant leakage at the pipe-to-engine connection
  • Restricted coolant flow caused by hose collapse or wear
  • Incorrect hose shape after prior cooling system repair
  • Service replacement for aging Honda Civic coolant hoses

Installation Notes and Tips

Verify the hose routing, end diameters, and lower pipe-to-engine position before installation. Inspect adjoining clamps, pipes, and sealing surfaces for wear or corrosion, and replace any damaged cooling system components as needed. After installation, refill and bleed the cooling system according to Honda service procedures to help remove trapped air.

Quality Assurance

Dayco 72976 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications for radiator coolant hose service. It is a direct-fit hose for the listed Honda Civic applications.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2021HondaCivic2.0LL4Lower - Pipe To EngineCurved Radiator Hose
2020HondaCivic2.0LL4Lower - Pipe To EngineCurved Radiator Hose
2019HondaCivic2.0LL4Lower - Pipe To EngineCurved Radiator Hose
2018HondaCivic2.0LL4Lower - Pipe To EngineCurved Radiator Hose
2017HondaCivic2.0LL4Lower - Pipe To EngineCurved Radiator Hose
2016HondaCivic2.0LL4Lower - Pipe To EngineCurved Radiator Hose