HomeBelts and Cooling > Hoses and PipesDayco 71950 Radiator Coolant Hose - Lower
Part #: 71950

Dayco 71950 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
30 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: Buick, Chevrolet, Pontiac, and Oldsmobile, Rendezvous, Equinox, Venture, Aztek, Montana, Silhouette, and Trans Sport
Easy Returns — Return within 60 days for a full refund
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Overview of Dayco Curved Radiator Hose 71950

The Dayco Curved Radiator Hose 71950 is designed to provide reliable coolant flow for select GM vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in Buick, Chevrolet, Oldsmobile, and Pontiac models including the Aztek, Equinox, Montana, Rendezvous, Silhouette, and Trans Sport.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Black color with a single inside diameter of 1 1/4 inch on both ends
  • Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Curved design tailored for specific GM vehicle coolant routing
  • Trunk height dimension of 12 inches for precise fitment

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with specific bends and dimensions to match factory coolant system layouts. This product line is engineered to meet or exceed OEM standards, providing a direct replacement that maintains proper coolant flow and system integrity. The 71950 part is a single inside diameter hose designed to fit multiple GM models, ensuring compatibility and ease of installation.

Detailed Product Description

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 under demanding engine conditions. Both ends of the hose have an inside diameter of 1 1/4 inches, making it suitable for coolant connections requiring this size. The hose does not include a heat shield or protective sleeve, reflecting its intended use in standard engine compartments without additional shielding needs. Meeting SAE J20R4 Class D-1 and SAE J1684 Type EC standards ensures the hose complies with industry requirements for coolant hoses, including pressure and temperature tolerances.

Compatible Vehicles and Common Applications

  • Buick Aztek and Rendezvous coolant system repairs
  • Chevrolet Equinox and Montana radiator hose replacements
  • Oldsmobile Silhouette coolant hose maintenance
  • Pontiac Trans Sport radiator coolant routing
  • Addressing coolant leaks, hose cracks, and coolant flow restrictions in these models

Installation Notes and Tips

  • Verify hose dimensions and fitment with your vehicle’s service manual before installation
  • Ensure all clamps and connections are secure to prevent leaks
  • Inspect surrounding components for wear or damage during replacement
  • Drain coolant system properly before removing the old hose
  • Use appropriate coolant type when refilling after installation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71950 to meet strict quality standards, ensuring durability and performance. The hose is tested to comply with SAE specifications relevant to radiator coolant hoses. Warranty coverage details should be confirmed with the original product documentation or supplier, as Dayco typically offers limited warranties against manufacturing defects.

BrandDayco
Part Number71950
PositionCurved Radiator Hose, Lower
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 Height12

This part fits 30 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007BuickRendezvousLowerCurved Radiator Hose
2006BuickRendezvous3.5LV6LowerCurved Radiator Hose
2005BuickRendezvous3.4LV6LowerCurved Radiator Hose
2005ChevroletEquinoxLowerCurved Radiator Hose
2005PontiacAztekLowerCurved Radiator Hose
2005PontiacMontana3.4LV6LowerCurved Radiator Hose
2004BuickRendezvous3.4LV6LowerCurved Radiator Hose
2004OldsmobileSilhouetteLowerCurved Radiator Hose
2004PontiacAztekLowerCurved Radiator Hose
2004PontiacMontanaLowerCurved Radiator Hose
2003BuickRendezvousLowerCurved Radiator Hose
2003OldsmobileSilhouetteLowerCurved Radiator Hose
2003PontiacAztekLowerCurved Radiator Hose
2003PontiacMontanaLowerCurved Radiator Hose
2002BuickRendezvousLowerCurved Radiator Hose
2002OldsmobileSilhouetteLowerCurved Radiator Hose
2002PontiacAztekLowerCurved Radiator Hose
2002PontiacMontanaLowerCurved Radiator Hose
2001OldsmobileSilhouetteLowerCurved Radiator Hose
2001PontiacAztekLowerCurved Radiator Hose
2001PontiacMontanaLowerCurved Radiator Hose
2000OldsmobileSilhouetteLowerCurved Radiator Hose
2000PontiacMontanaLowerCurved Radiator Hose
1999OldsmobileSilhouetteLowerCurved Radiator Hose
1999PontiacMontanaLowerCurved Radiator Hose
1999PontiacTrans SportLowerCurved Radiator Hose
1998OldsmobileSilhouetteLowerCurved Radiator Hose
1998PontiacTrans SportLowerCurved Radiator Hose
1997OldsmobileSilhouetteLowerCurved Radiator Hose
1997PontiacTrans SportLowerCurved 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:

22278M22538M22574M

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