HomeDayco 72278 Radiator Coolant Hose - Lower
Part #: 72278

Dayco 72278 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Curved Radiator Hose, Lower
Fitment: Chevrolet and Pontiac, Cobalt and Pursuit
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Overview of Dayco Curved Radiator Hose 72278

The Dayco Curved Radiator Hose 72278 is designed specifically for Chevrolet Cobalt and Pontiac Pursuit models. Engineered with durable EPDM material and a protective sleeve, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.

  • Constructed from high-quality EPDM material 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 consistent coolant flow
  • Includes a protective sleeve to guard against abrasion
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 20-1/2 inches for proper routing

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses that match the original equipment specifications for coolant systems requiring curved hose configurations. This product line emphasizes durability and fitment accuracy, making it suitable for vehicles like the Chevrolet Cobalt and Pontiac Pursuit that demand precise hose routing and reliable coolant transfer.

Product Description and Specifications

The Dayco 72278 radiator coolant hose is a single inside diameter hose designed to maintain optimal coolant flow within the engine cooling system. Made from EPDM, it offers resistance to heat, ozone, and coolant chemicals, which helps extend the hose's service life. Both ends have an inside diameter of 1 5/16 inches, ensuring compatibility with the corresponding radiator and engine fittings. The hose includes a protective sleeve to reduce wear from contact with other engine components, 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.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Chevrolet Cobalt and Pontiac Pursuit vehicles
  • Prevention of coolant leaks caused by hose degradation or damage
  • Restoration of proper coolant flow to avoid engine overheating
  • Addressing hose swelling or softening due to heat exposure
  • Ensuring secure hose connections with correct diameter and fitment

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72278, ensure the vehicle is cool to prevent injury from hot coolant. Verify that the hose routing matches the original configuration to avoid kinks or interference with other engine parts. Use appropriate clamps to secure both ends of the hose 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 72278 to meet industry SAE specifications, ensuring consistent quality and performance. The EPDM material and protective sleeve contribute to the hose's durability under typical operating conditions. Warranty details should be confirmed with the original equipment manufacturer or supplier, as they may vary by region and application.

BrandDayco
Part Number72278
PositionCurved Radiator Hose, Lower
ColorBlack
Contains Protective SleeveY
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 Height20-1/2

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005ChevroletCobalt2.2LL4LowerCurved Radiator Hose
2005PontiacPursuitLowerCurved 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:

24581L

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