HomeBelts and Cooling > Hoses and PipesDayco 72400 Radiator Coolant Hose - Lower
Part #: 72400

Dayco 72400 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
11 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, Pontiac, and Saturn, Malibu, G6, and Aura
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Overview of Dayco Curved Radiator Hose 72400

The Dayco Curved Radiator Hose 72400 is designed to provide reliable coolant flow for select Chevrolet, Pontiac, and Saturn vehicles. Engineered with durable EPDM material and a protective sleeve, this radiator coolant hose ensures consistent performance in demanding engine environments.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Black color with a curved design to fit specific engine layouts
  • Inside diameter of 1 9/32 inches on both ends for precise fitment
  • Includes a protective sleeve to guard against abrasion
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 19 1/2 inches for proper routing

Details on the Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses that accommodate specific engine configurations requiring curved coolant pathways. This product line emphasizes durability and fitment accuracy, making it suitable for vehicles like the Chevrolet Malibu, Pontiac G6, and Saturn Aura. The 72400 part number represents a single inside diameter hose designed to maintain coolant system integrity under typical operating conditions.

Product Description and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, which helps extend hose life. Both ends of the hose have an inside diameter of 1 9/32 inches, ensuring a secure connection to the 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. Compliance with SAE J20R4 Class D-1 and SAE J1684 Type EC standards confirms its suitability for automotive coolant systems. The hose’s trunk height of 19 1/2 inches supports proper installation and routing within the engine bay.

Compatible Vehicles and Common Applications

  • Chevrolet Malibu radiator coolant replacement
  • Pontiac G6 cooling system maintenance
  • Saturn Aura radiator hose repair
  • Replacement for coolant leaks or hose deterioration
  • Addressing overheating issues related to coolant flow

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72400, ensure the hose is routed without kinks or sharp bends to maintain coolant flow. Verify that the inside diameters match the radiator and engine fittings for a secure seal. Use appropriate clamps and inspect the protective sleeve for any damage before installation. It is recommended to drain the coolant system before removal and refill with the correct coolant type after installation.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72400 to meet industry SAE specifications, ensuring reliable performance in Chevrolet Malibu, Pontiac G6, and Saturn Aura vehicles. While specific warranty details are not provided, Dayco products typically adhere to strict quality control standards to support durability and fitment accuracy.

BrandDayco
Part Number72400
PositionCurved Radiator Hose, Lower
ColorBlack
Contains Protective SleeveY
End 1 Inside Diameter1 9/32
End 2 Inside Diameter1 9/32
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height19 1/2

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012ChevroletMalibu3.6LV6LowerCurved Radiator Hose
2011ChevroletMalibu3.6LV6LowerCurved Radiator Hose
2010ChevroletMalibu3.6LV6LowerCurved Radiator Hose
2009ChevroletMalibu3.6LV6LowerCurved Radiator Hose
2009PontiacG63.6LV6LowerCurved Radiator Hose
2009SaturnAura3.6LV6LowerCurved Radiator Hose
2008ChevroletMalibu3.6LV6LowerCurved Radiator Hose
2008PontiacG63.6LV6LowerCurved Radiator Hose
2008SaturnAura3.6LV6LowerCurved Radiator Hose
2007PontiacG63.6LV6LowerCurved Radiator Hose
2007SaturnAura3.6LV6LowerCurved 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:

24625L

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