HomeBelts and Cooling > Hoses and PipesDayco 72317 Radiator Coolant Hose - Upper
Part #: 72317

Dayco 72317 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
6 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, Upper
Fitment: Mazda, 6
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 72317

The Dayco Curved Radiator Hose 72317 is designed specifically for Mazda 6 models, providing reliable coolant flow and engine temperature regulation. Constructed from durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance.

  • Made from high-quality EPDM material for heat and chemical resistance
  • Black color with protective sleeve for added durability
  • Dual inside diameters: 1 3/16 inches and 1 1/4 inches for precise fitment
  • Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 16 1/2 inches suitable for specific radiator configurations
  • Compatible with Mazda 6 radiator coolant systems

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses with precise bends and dual inside diameters to accommodate specific radiator and engine layouts. This product line emphasizes durability and fitment accuracy, making it suitable for vehicles like the Mazda 6 that require tailored coolant hose solutions. The inclusion of a protective sleeve enhances hose longevity by guarding against abrasion and environmental factors.

Detailed Product Description

The Dayco 72317 radiator coolant hose is engineered from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Its black finish and protective sleeve provide additional protection against wear and external damage. The hose features a dual inside diameter design, with one end measuring 1 3/16 inches and the other 1 1/4 inches, ensuring a secure and leak-free connection to the radiator and engine fittings. This hose meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its compliance with industry requirements for coolant hoses. With a trunk height of 16 1/2 inches, it fits the Mazda 6 cooling system layout precisely.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses on Mazda 6 vehicles
  • Resolving coolant leaks caused by hose degradation or improper fit
  • Preventing overheating issues due to compromised coolant flow
  • Addressing hose swelling or softening from heat exposure
  • Upgrading to a hose with protective sleeve for enhanced durability

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72317, ensure the engine is cool to avoid burns. Verify the hose orientation matches the original to maintain proper coolant flow. Use appropriate clamps to secure both ends, checking for tightness without over-tightening to prevent hose damage. Inspect adjacent components for wear or leaks during installation. The protective sleeve should be positioned to guard areas prone to abrasion.

Quality Assurance and Warranty

Dayco manufactures the 72317 radiator hose to meet strict SAE specifications, ensuring reliable performance in automotive cooling systems. The EPDM material and protective sleeve contribute to extended service life. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality guarantees. For warranty information, refer to Dayco's official documentation or contact authorized distributors.

BrandDayco
Part Number72317
PositionCurved Radiator Hose, Upper
ColorBlack
Contains Protective SleeveY
End 1 Inside Diameter1 3/16
End 2 Inside Diameter1 1/4
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height16 1/2

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008Mazda62.3LL4UpperCurved Radiator Hose
2007Mazda62.3LL4UpperCurved Radiator Hose
2006Mazda62.3LL4UpperCurved Radiator Hose
2005Mazda62.3LL4UpperCurved Radiator Hose
2004Mazda62.3LL4UpperCurved Radiator Hose
2003Mazda62.3LL4UpperCurved 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:

24503L

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