HomeBelts and Cooling > Hoses and PipesDayco 72473 Radiator Coolant Hose - Lower
Part #: 72473

Dayco 72473 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
⚙️ 14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Curved Radiator Hose, Lower
🚗Fitment: Lexus, IS250 and IS350
🔄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 72473

The Dayco Curved Radiator Hose 72473 is designed specifically for Lexus IS250 and IS350 models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance under typical engine cooling system conditions.

  • Material: EPDM for heat and chemical resistance
  • Color: Black
  • End 1 Inside Diameter: 1 1/2 inches
  • End 2 Inside Diameter: 1 1/2 inches
  • Hose Type: Single inside diameter hose
  • SAE Specifications: SAE J20R4 Class D-1, SAE J1684 Type EC
  • Trunk Height: 20 1/2 inches
  • Compatible with Lexus IS250 and IS350

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dimensions to fit specific vehicle cooling systems. This product line is engineered to meet SAE standards, ensuring compatibility and durability for applications like the Lexus IS250 and IS350. The curved design helps maintain proper coolant flow and fitment within the engine bay.

Detailed Product Description

The Dayco 72473 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 1/2 inches, making it a single i.d. hose suitable for specific radiator connections. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, which define performance requirements for coolant hoses in automotive applications. With a trunk height of 20 1/2 inches, this hose is designed to fit the cooling system layout of Lexus IS250 and IS350 models without the need for modifications.

Common Applications and Issues Addressed

  • Replacement of worn or cracked radiator coolant hoses in Lexus IS250 and IS350
  • Resolving coolant leaks caused by hose degradation
  • Maintaining proper coolant flow and engine temperature regulation
  • Preventing overheating due to compromised hose integrity
  • Ensuring compliance with OEM cooling system specifications

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72473, ensure the engine is cool to avoid burns or injury. 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 adjacent components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72473 to meet SAE standards, ensuring consistent quality and performance. The EPDM material provides durability against heat and chemical exposure typical in automotive cooling systems. Warranty details should be confirmed with the original product documentation or supplier.

BrandDayco
Part Number72473
PositionCurved Radiator Hose, Lower
MaterialEpdm
ColorBlack
End 1 Inside Diameter1 1/2
End 2 Inside Diameter1 1/2
Contains Heat ShieldN
Contains Protective SleeveN
Hose TypeSingle i.d. hose
SAE SpecificationSae j20r4 class d-1, sae j1684 type ec
Trunk Height20 1/2

This part fits 14 vehicles. Search below:

YearMakeModelPositionNotes
2012LexusIS250Lower1st Design; Curved Radiator Hose
2012LexusIS350Lower1st Design; Curved Radiator Hose
2011LexusIS250LowerCurved Radiator Hose
2011LexusIS350LowerCurved Radiator Hose
2010LexusIS250LowerCurved Radiator Hose
2010LexusIS350LowerCurved Radiator Hose
2009LexusIS250LowerCurved Radiator Hose
2009LexusIS350LowerCurved Radiator Hose
2008LexusIS250LowerCurved Radiator Hose
2008LexusIS350LowerCurved Radiator Hose
2007LexusIS250LowerCurved Radiator Hose
2007LexusIS350LowerCurved Radiator Hose
2006LexusIS250LowerCurved Radiator Hose
2006LexusIS350LowerCurved 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:

26580X

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