HomeBelts and Cooling > Hoses and PipesDayco 71951 Radiator Coolant Hose - Upper
Part #: 71951

Dayco 71951 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
21 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: Buick and Pontiac, LeSabre, Park Avenue, and Bonneville
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 71951

The Dayco Curved Radiator Hose 71951 is designed for reliable coolant flow in select Buick and Pontiac vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in the cooling system of Buick Bonneville, LeSabre, and Pontiac Park Avenue models.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Black single inside diameter hose with 1 1/4 inch ends
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 18 inches for precise fitment
  • Compatible with Buick Bonneville, LeSabre, and Pontiac Park Avenue

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses shaped to fit specific radiator and engine configurations. This product line provides hoses with precise bends and dimensions to ensure proper coolant flow and secure connections without the need for modifications. The 71951 part is part of this line, offering a curved design that matches the cooling system requirements of certain Buick and Pontiac models.

Product Specifications and Features

This radiator coolant hose features a single inside diameter of 1 1/4 inches on both ends, making it suitable for direct replacement in compatible vehicles. The EPDM material offers resistance to heat, ozone, and coolant chemicals, which helps maintain hose integrity over time. The hose does not include a heat shield or protective sleeve, focusing on straightforward installation and function. Compliance with SAE J20R4 Class D-1 and SAE J1684 Type EC standards ensures the hose meets industry requirements for coolant hoses.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator hoses in Buick Bonneville, LeSabre, and Pontiac Park Avenue
  • Resolving coolant leaks caused by hose degradation
  • Addressing overheating issues due to compromised coolant flow
  • Maintaining proper coolant system pressure and circulation
  • Ensuring compatibility with factory cooling system configurations

Installation Notes and Tips

Before installation, verify the hose dimensions and fitment with your vehicle’s specifications. Ensure the cooling system is cool and depressurized to avoid injury. Remove the old hose carefully, inspecting clamps and connections for wear. Install the Dayco 71951 hose by securing both ends with appropriate clamps, confirming a snug fit to prevent leaks. No additional heat shields or protective sleeves are required for this hose.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71951 to meet strict SAE standards, ensuring durability and performance. The EPDM material and construction provide resistance to heat and coolant chemicals, contributing to long service life. Warranty details should be confirmed with the point of purchase or manufacturer documentation.

BrandDayco
Part Number71951
PositionCurved Radiator Hose, Upper
ColorBlack
End 1 Inside Diameter1 1/4
End 2 Inside Diameter1 1/4
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height18

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005BuickLeSabreUpperCurved Radiator Hose
2005BuickPark AvenueUpperCurved Radiator Hose
2005PontiacBonneville3.8LV6UpperCurved Radiator Hose
2004BuickLeSabreUpperCurved Radiator Hose
2004BuickPark AvenueUpperCurved Radiator Hose
2004PontiacBonneville3.8LV6UpperCurved Radiator Hose
2003BuickLeSabreUpperCurved Radiator Hose
2003BuickPark AvenueUpperCurved Radiator Hose
2003PontiacBonnevilleUpperCurved Radiator Hose
2002BuickLeSabreUpperCurved Radiator Hose
2002BuickPark AvenueUpperCurved Radiator Hose
2002PontiacBonnevilleUpperCurved Radiator Hose
2001BuickLeSabreUpperCurved Radiator Hose
2001BuickPark AvenueUpperCurved Radiator Hose
2001PontiacBonnevilleUpperCurved Radiator Hose
2000BuickLeSabreUpperCurved Radiator Hose
2000BuickPark AvenueUpperCurved Radiator Hose
2000PontiacBonnevilleUpperCurved Radiator Hose
1999BuickPark AvenueUpperCurved Radiator Hose
1998BuickPark AvenueUpperCurved Radiator Hose
1997BuickPark AvenueUpperCurved 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:

24372L

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