HomeBelts and Cooling > Hoses and PipesDayco 71891 Radiator Coolant Hose - Upper
Part #: 71891

Dayco 71891 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
18 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Curved Radiator Hose, Upper
Fitment: Honda, Nissan, and Toyota, CR-Z, Sentra, Paseo, and Tercel
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dayco Curved Radiator Hose 71891

The Dayco Curved Radiator Hose 71891 is designed for reliable coolant flow in select Honda, Nissan, and Toyota vehicles. Engineered with durable EPDM material and a protective sleeve, this radiator coolant hose ensures consistent performance under typical engine conditions.

  • Constructed from EPDM material for heat and chemical resistance
  • Black color with a single inside diameter of 1 1/16 inches on both ends
  • Includes a protective sleeve for added durability
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 11 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose 71891 is a single inside diameter hose designed to maintain efficient coolant circulation in compatible vehicles. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose supports engine cooling system integrity. Both ends have an inside diameter of 1 1/16 inches, ensuring a secure connection to radiator and engine fittings. The hose includes a protective sleeve to guard against abrasion and premature wear, although it does not contain a heat shield. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications.

About the Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses shaped to fit specific engine layouts, reducing the need for modifications during installation. This product line emphasizes precise dimensions and material quality to support cooling system efficiency and durability. The 71891 part is a representative of this line, tailored for vehicles requiring a curved hose with consistent inside diameters and protective features.

Compatible Vehicles and Common Applications

  • Honda CR-Z radiator coolant system maintenance
  • Nissan Paseo cooling hose replacement
  • Toyota Tercel and Sentra radiator hose repair
  • Addressing coolant leaks or hose deterioration in these models
  • Replacing worn or cracked radiator hoses to prevent overheating

Installation Notes and Tips

  • Ensure the engine is cool before removing the old hose
  • Check hose connections for corrosion or damage before installation
  • Use appropriate clamps to secure the hose ends firmly
  • Verify the hose routing matches the original to avoid kinks
  • Inspect the protective sleeve for proper positioning during installation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71891 to meet established SAE standards, ensuring reliable performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand's commitment to durability and fitment accuracy.

BrandDayco
Part Number71891
PositionCurved Radiator Hose, Upper
ColorBlack
Contains Protective SleeveY
End 1 Inside Diameter1 1/16
End 2 Inside Diameter1 1/16
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height11

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016HondaCR-ZUpperCurved Radiator Hose
2015HondaCR-ZUpperCurved Radiator Hose
2014HondaCR-ZUpperCurved Radiator Hose
2013HondaCR-ZUpperCurved Radiator Hose
2012HondaCR-ZUpperCurved Radiator Hose
2011HondaCR-ZUpperCurved Radiator Hose
2006NissanSentra1.8LL4UpperCurved Radiator Hose
2005NissanSentra1.8LL4UpperCurved Radiator Hose
2004NissanSentra1.8LL4UpperCurved Radiator Hose
1999ToyotaPaseoUpperCurved Radiator Hose
1999ToyotaTercelUpperCurved Radiator Hose
1998ToyotaPaseoUpperCurved Radiator Hose
1998ToyotaTercelUpperCurved Radiator Hose
1997ToyotaPaseoUpperCurved Radiator Hose
1997ToyotaTercelUpperCurved Radiator Hose
1996ToyotaPaseoUpperCurved Radiator Hose
1996ToyotaTercelUpperCurved Radiator Hose
1995ToyotaTercelUpperCurved Radiator Hose

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

20291S20340S20561S

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.