HomeBelts and Cooling > Hoses and PipesDayco 71928 Radiator Coolant Hose - Lower
Part #: 71928

Dayco 71928 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
17 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$30.19Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Curved Radiator Hose, Lower
Fitment: Scion and Toyota, xA, xB, Echo, and RAV4
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 71928

The Dayco Curved Radiator Hose 71928 is designed to provide reliable coolant flow for select Toyota and Scion vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.

  • Constructed from EPDM for heat and chemical resistance
  • Black single inside diameter hose with 1 5/32 inch ends
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 11 1/2 inches for precise fitment
  • Compatible with Toyota Echo, RAV4, and Scion xA, xB models

Detailed Product Description

The Dayco Curved Radiator Hose line focuses on delivering hoses that conform to specific vehicle cooling system requirements. The 71928 part is a single inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 5/32 inches, ensuring a secure connection to the radiator and engine fittings. This hose does not include a heat shield or protective sleeve, which is typical for this type of radiator coolant hose. The trunk height of 11 1/2 inches allows it to fit precisely within the cooling system layout of compatible vehicles.

Compatible Vehicles and Applications

This radiator coolant hose is compatible with several Toyota and Scion models, including the Toyota Echo, Toyota RAV4, Scion xA, and Scion xB. It is designed to maintain proper coolant flow and temperature regulation in these vehicles, helping to prevent overheating and coolant leaks.

  • Replaces worn or cracked radiator hoses
  • Prevents coolant leaks and engine overheating
  • Restores proper coolant circulation in the radiator system
  • Addresses hose swelling or softening due to age or heat exposure
  • Ensures secure hose connections with correct diameter fittings

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71928, ensure the engine is cool to avoid burns from hot coolant. Verify that the hose diameter matches the radiator and engine fittings exactly to prevent leaks. Use appropriate clamps to secure the hose ends firmly. Inspect surrounding components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71928 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for radiator hoses. The EPDM material provides durability against heat and coolant exposure. While specific warranty details are not provided, Dayco products typically adhere to strict quality control processes to support reliable vehicle operation.

BrandDayco
Part Number71928
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 5/32
End 2 Inside Diameter1 5/32
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height11 1/2

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006ScionxALowerCurved Radiator Hose
2006ScionxBLowerCurved Radiator Hose
2005ScionxALowerCurved Radiator Hose
2005ScionxBLowerCurved Radiator Hose
2005ToyotaEchoLowerCurved Radiator Hose
2004ScionxALowerCurved Radiator Hose
2004ScionxBLowerCurved Radiator Hose
2004ToyotaEchoLowerCurved Radiator Hose
2003ToyotaEchoLowerCurved Radiator Hose
2002ToyotaEchoLowerCurved Radiator Hose
2001ToyotaEchoLowerCurved Radiator Hose
2000ToyotaEchoLowerCurved Radiator Hose
2000ToyotaRAV42.0LL4LowerCurved Radiator Hose
1999ToyotaRAV42.0LL4LowerCurved Radiator Hose
1998ToyotaRAV42.0LL4LowerCurved Radiator Hose
1997ToyotaRAV4LowerCurved Radiator Hose
1996ToyotaRAV4LowerCurved 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:

22345M22367M

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