HomeBelts and Cooling > Hoses and PipesDayco 72170 Radiator Coolant Hose - Lower
Part #: 72170

Dayco 72170 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
18 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, Lower
Fitment: Pontiac and Toyota, Vibe, Corolla, and Matrix
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 72170

The Dayco Curved Radiator Hose 72170 is designed for reliable coolant flow in select Pontiac and Toyota vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance for models like the Toyota Corolla, Matrix, and Pontiac Vibe.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Black single inside diameter hose with 1 5/16 inch ends
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Curved design tailored for specific radiator connections
  • Compatible with Pontiac and Toyota models including Corolla, Matrix, and Vibe

Detailed Product Description

The Dayco Curved Radiator Hose 72170 is a single inside diameter hose made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 5/16 inches, ensuring a precise fit for radiator connections on compatible vehicles. This hose does not include a heat shield or protective sleeve, focusing on a straightforward, durable design. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, which define performance requirements for coolant hoses in automotive applications. The trunk height of 11 inches supports proper routing within the engine bay.

About the Curved Radiator Hose Product Line

Dayco's Curved Radiator Hose line is engineered to provide reliable coolant transfer with a shape that matches specific vehicle radiator layouts. This product line focuses on delivering hoses that maintain coolant flow efficiency while fitting precisely in the engine compartment. The 72170 part is part of this line, offering a curved design that suits the cooling system requirements of Pontiac and Toyota vehicles such as the Corolla, Matrix, and Vibe.

Common Applications and Problem Solving

  • Replacement for worn or cracked radiator coolant hoses
  • Prevents coolant leaks that can cause engine overheating
  • Restores proper coolant flow in Pontiac Vibe and Toyota Corolla cooling systems
  • Addresses hose swelling or softening due to heat exposure
  • Ensures secure radiator connections with correct diameter and curvature

Installation Notes and Tips

  • Verify hose diameter and length match your vehicle’s specifications before installation
  • Ensure clamps are properly tightened to prevent leaks without damaging the hose
  • Inspect surrounding components for wear or damage during replacement
  • Allow engine to cool before removing the old hose to avoid burns
  • Check for proper routing to avoid kinks or contact with moving parts

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72170 to meet industry SAE standards, ensuring durability and performance under typical operating conditions. While specific warranty details are not provided here, Dayco products generally come with manufacturer-backed quality assurance to support reliable service life in compatible Pontiac and Toyota vehicles.

BrandDayco
Part Number72170
PositionCurved Radiator Hose, Lower
ColorBlack
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 Height11

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008PontiacVibeLowerCurved Radiator Hose
2008ToyotaCorollaLowerCurved Radiator Hose
2008ToyotaMatrixLowerCurved Radiator Hose
2007PontiacVibeLowerCurved Radiator Hose
2007ToyotaCorollaLowerCurved Radiator Hose
2007ToyotaMatrixLowerCurved Radiator Hose
2006PontiacVibe1.8LL4LowerCurved Radiator Hose
2006ToyotaCorolla1.8LL4LowerCurved Radiator Hose
2006ToyotaMatrix1.8LL4LowerCurved Radiator Hose
2005PontiacVibe1.8LL4LowerCurved Radiator Hose
2005ToyotaCorolla1.8LL4LowerCurved Radiator Hose
2005ToyotaMatrix1.8LL4LowerCurved Radiator Hose
2004PontiacVibe1.8LL4LowerCurved Radiator Hose
2004ToyotaCorollaLowerCurved Radiator Hose
2004ToyotaMatrix1.8LL4LowerCurved Radiator Hose
2003PontiacVibe1.8LL4LowerCurved Radiator Hose
2003ToyotaCorollaLowerCurved Radiator Hose
2003ToyotaMatrix1.8LL4LowerCurved 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:

22465M

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