HomeBelts and Cooling > Hoses and PipesDayco 71700 Radiator Coolant Hose - Lower
Part #: 71700

Dayco 71700 Radiator Coolant Hose - Lower

Curved Radiator Hose, Lower
32 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, Regal, Impala, Monte Carlo, Grand Prix, Lumina, and Intrigue
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Overview of Dayco Curved Radiator Hose 71700

The Dayco Curved Radiator Hose 71700 is designed to provide reliable coolant flow for select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in your vehicle's cooling system.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Dual inside diameters: 1 9/32 inches and 1 17/32 inches for precise fitment
  • Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Trunk height of 12 inches for proper routing in engine bay

Detailed Product Description

The Dayco Curved Radiator Hose 71700 is a dual inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose is specifically designed to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for radiator coolant hoses. The hose features two different inside diameters—1 9/32 inches on one end and 1 17/32 inches on the other—allowing it to connect components with varying sizes securely. Its black color matches OEM specifications, and the 12-inch trunk height facilitates proper installation within the engine compartment.

The Curved Radiator Hose product line from Dayco focuses on providing hoses with precise bends and dual diameter ends to accommodate specific vehicle cooling system layouts. This design helps maintain optimal coolant flow and reduces stress on hose connections, contributing to system reliability.

Compatible Vehicles and Applications

  • Buick Regal and Century models
  • Chevrolet Impala, Lumina, and Monte Carlo
  • Oldsmobile Intrigue
  • Pontiac Grand Prix

This hose is intended for use in radiator coolant systems of these vehicles, replacing worn or damaged hoses to maintain proper engine temperature regulation.

Common Issues Addressed by This Radiator Hose

  • Coolant leaks due to cracked or deteriorated hoses
  • Improper coolant flow from ill-fitting or damaged hoses
  • Overheating caused by compromised radiator hose integrity
  • Hose collapse or deformation under pressure
  • Premature hose failure from exposure to heat and chemicals

Installation Notes and Tips

  • Ensure engine is cool before removing the old hose to avoid burns
  • Check hose clamps and replace if corroded or damaged
  • Verify the correct orientation of the dual inside diameter ends during installation
  • Inspect surrounding components for wear or damage while replacing the hose
  • Tighten clamps securely but avoid over-tightening to prevent hose damage

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71700 to meet strict SAE specifications, ensuring durability and performance in demanding automotive environments. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability. Using this hose helps maintain the integrity of your vehicle's cooling system and supports consistent engine operation.

BrandDayco
Part Number71700
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 9/32
End 2 Inside Diameter1 17/32
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height12

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004BuickRegalLowerCurved Radiator Hose
2003BuickRegalLowerCurved Radiator Hose
2003ChevroletImpala3.8LV6LowerCurved Radiator Hose
2003ChevroletMonte Carlo3.8LV6LowerCurved Radiator Hose
2003PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
2002BuickRegalLowerCurved Radiator Hose
2002ChevroletImpala3.8LV6LowerCurved Radiator Hose
2002ChevroletMonte Carlo3.8LV6LowerCurved Radiator Hose
2002PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
2001BuickRegalLowerCurved Radiator Hose
2001ChevroletImpala3.8LV6LowerCurved Radiator Hose
2001ChevroletMonte Carlo3.8LV6LowerCurved Radiator Hose
2001PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
2000BuickRegalLowerCurved Radiator Hose
2000ChevroletImpala3.8LV6LowerCurved Radiator Hose
2000ChevroletMonte Carlo3.8LV6LowerCurved Radiator Hose
2000PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
1999BuickRegalLowerCurved Radiator Hose
1999ChevroletLumina3.8LV6LowerCurved Radiator Hose
1999ChevroletMonte Carlo3.8LV6LowerCurved Radiator Hose
1999OldsmobileIntrigue3.8LV6LowerCurved Radiator Hose
1999PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
1998BuickRegalLowerCurved Radiator Hose
1998ChevroletLumina3.8LV6LowerCurved Radiator Hose
1998ChevroletMonte Carlo3.8LV6LowerCurved Radiator Hose
1998OldsmobileIntrigueLowerCurved Radiator Hose
1998PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
1997BuickRegalLowerCurved Radiator Hose
1997PontiacGrand Prix3.8LV6LowerCurved Radiator Hose
1996BuickRegal3.8LV6LowerCurved Radiator Hose
1995BuickRegal3.8LV6LowerCurved Radiator Hose
1994BuickRegal3.8LV6LowerCurved 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:

22326M

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