HomeBelts and Cooling > Hoses and PipesDayco 72005 Radiator Coolant Hose - Lower
Part #: 72005

Dayco 72005 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
15 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, Lower
Fitment: Nissan, Toyota, and Lexus, 350Z, Highlander, and RX300
Easy Returns — Return within 60 days for a full refund
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Overview of Dayco Curved Radiator Hose 72005

The Dayco Curved Radiator Hose 72005 is designed for reliable coolant flow in select Lexus, Nissan, and Toyota vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.

Key Features of Dayco Radiator Coolant Hose 72005

  • Constructed from EPDM for heat and chemical resistance
  • Black color with a curved design for precise fitment
  • Inside diameter of 1 5/16 inches on both ends for uniform coolant flow
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Single inside diameter hose type without heat shield or protective sleeve
  • Trunk height measures 16 3/4 inches for proper routing

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses shaped to fit specific engine layouts, reducing installation complexity and improving coolant system efficiency. This product line includes hoses engineered to meet strict SAE standards, ensuring compatibility and durability for vehicles like the Lexus RX300, Nissan 350Z, and Toyota Highlander.

Detailed Product Description

The Dayco 72005 radiator coolant hose is manufactured 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 5/16 inches, providing a consistent seal and flow rate. The hose’s curved design allows it to fit precisely within the engine bay of compatible Lexus, Nissan, and Toyota models, including the RX300, 350Z, and Highlander. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for coolant system applications without additional heat shielding or protective sleeves.

Common Applications and Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses in Lexus RX300, Nissan 350Z, and Toyota Highlander
  • Resolving coolant leaks caused by hose degradation or swelling
  • Preventing overheating due to compromised coolant flow
  • Maintaining proper coolant system pressure and temperature regulation
  • Ensuring secure hose connections with consistent inside diameter ends

Installation Notes and Tips

  • Verify hose dimensions and fitment with vehicle specifications before installation
  • Ensure clamps are properly tightened to prevent leaks without damaging the hose
  • Inspect surrounding components for wear or damage during replacement
  • Flush the cooling system if contamination or debris is present
  • Allow the engine to cool before removing the old hose to avoid burns

Quality Assurance and Warranty

Dayco manufactures the 72005 radiator coolant hose to meet SAE specifications, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive cooling systems.

BrandDayco
Part Number72005
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 5/16
End 2 Inside Diameter1 5/16
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height16 3/4

This part fits 15 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2009Nissan350ZLowerCurved Radiator Hose
2008Nissan350ZLowerCurved Radiator Hose
2007Nissan350ZLowerCurved Radiator Hose
2007ToyotaHighlander3.3LV6GASLowerCurved Radiator Hose
2006ToyotaHighlander3.3LV6GASLowerCurved Radiator Hose
2005ToyotaHighlander3.3LV6LowerCurved Radiator Hose
2004ToyotaHighlander3.3LV6LowerCurved Radiator Hose
2003LexusRX300LowerCurved Radiator Hose
2003ToyotaHighlander3.0LV6LowerCurved Radiator Hose
2002LexusRX300LowerCurved Radiator Hose
2002ToyotaHighlander3.0LV6LowerCurved Radiator Hose
2001LexusRX300LowerCurved Radiator Hose
2001ToyotaHighlander3.0LV6LowerCurved Radiator Hose
2000LexusRX300LowerCurved Radiator Hose
1999LexusRX300LowerCurved 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:

22392M24628L

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