HomeBelts and Cooling > Hoses and PipesDayco 72983 Radiator Coolant Hose - Lower or Upper
Part #: 72983

Dayco 72983 Radiator Coolant Hose - Lower or Upper

Curved Radiator Hose, Lower and Upper
⚙️ 17 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Curved Radiator Hose, Lower and Upper
🚗Fitment: Lexus and Subaru, Forester, IS250, IS300, IS350, and WRX
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Durable Radiator Coolant Hose for Lexus and Subaru Vehicles

The Dayco Curved Radiator Hose 72983 is engineered to provide reliable coolant flow for select Lexus and Subaru models. Designed with precision, this radiator coolant hose ensures optimal fit and performance for vehicles like the Lexus IS250, IS300, IS350, and Subaru Forester and WRX.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Black color with consistent dimensions: 1 15/32 inch inside diameter on both ends
  • Single inside diameter hose type for uniform coolant flow
  • Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 10 1/2 inches for proper routing in engine bay
  • Part number 72983 ensures exact replacement fitment

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses with precise bends and dimensions to match specific vehicle cooling system requirements. This product line emphasizes durability and compliance with industry SAE standards, making it suitable for maintaining proper coolant circulation in various automotive applications. The 72983 hose is part of this line, designed to meet the exacting needs of Lexus and Subaru cooling systems.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals, ensuring long service life. Both ends of the hose have an inside diameter of 1 15/32 inches and an outside diameter of 1 27/32 inches, providing a secure and leak-resistant connection. The hose does not include a heat shield or protective sleeve, which is typical for this type of single inside diameter hose. Its trunk height measures 10 1/2 inches, allowing it to fit precisely within the engine compartment of compatible Lexus and Subaru models.

Compatible Vehicles and Common Applications

  • Replacement radiator coolant hose for Lexus IS250, IS300, and IS350
  • Suitable for Subaru Forester and WRX models requiring a curved radiator hose
  • Addresses issues such as coolant leaks, hose cracking, and overheating due to worn or damaged hoses
  • Helps maintain proper coolant flow and engine temperature regulation
  • Prevents coolant system failures related to hose degradation

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify that the hose dimensions match the original part, especially the inside diameters and trunk height. Use appropriate clamps to secure the hose ends and check for leaks after installation. Inspect surrounding components for wear or damage during replacement to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures this radiator coolant hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for durability and performance. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to support reliable operation in automotive cooling systems.

BrandDayco
Part Number72983
PositionCurved Radiator Hose, Lower and Upper
MaterialEpdm
ColorBlack
End 1 Inside Diameter1 15/32
End 2 Inside Diameter1 15/32
Contains Heat ShieldN
Contains Protective SleeveN
End 1 Outside Diameter1 27/32
End 2 Outside Diameter1 27/32
Hose TypeSingle i.d. hose
SAE SpecificationSae j20r4 class d-1, sae j1684 type ec
Trunk Height10 1/2

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2018LexusIS3003.5LV6UpperCurved Radiator Hose
2018LexusIS350UpperTo 10/2017; Curved Radiator Hose
2017LexusIS300UpperCurved Radiator Hose
2017LexusIS350UpperCurved Radiator Hose
2017SubaruForester2.0LH4LowerCurved Radiator Hose
2017SubaruWRXLowerCurved Radiator Hose
2016LexusIS300UpperCurved Radiator Hose
2016LexusIS350UpperCurved Radiator Hose
2016SubaruForester2.0LH4LowerCurved Radiator Hose
2016SubaruWRX2.0LH4LowerCurved Radiator Hose
2015LexusIS250UpperCurved Radiator Hose
2015LexusIS350UpperCurved Radiator Hose
2015SubaruForester2.0LH4LowerCurved Radiator Hose
2015SubaruWRX2.0LH4LowerCurved Radiator Hose
2014LexusIS250UpperCurved Radiator Hose
2014LexusIS350UpperCurved Radiator Hose
2014SubaruForester2.0LH4LowerCurved Radiator Hose

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