HomeBelts and Cooling > Hoses and PipesDayco 71017 Radiator Coolant Hose - Lower or Upper
Part #: 71017

Dayco 71017 Radiator Coolant Hose - Lower or Upper

Curved Radiator Hose, Lower
⚙️ 41 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Curved Radiator Hose, Lower
🚗Fitment: Ford, Mercury, Chevrolet, GMC, Lincoln, Pontiac, and Toyota, Thunderbird, Cougar, LTD, Mustang, Capri, Marquis, P20, P30, P3500, Granada, Continental, Firebird, and 2000GT
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Overview of Dayco Curved Radiator Hose 71017

The Dayco Curved Radiator Hose 71017 is designed to provide reliable coolant flow for various vehicle models including Chevrolet, Ford, GMC, Lincoln, Mercury, and Pontiac. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and efficient cooling system performance.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Dual inside diameter design: 1 1/2 inch and 1 3/4 inch ends for versatile fitment
  • Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Trunk height of 18 inches for precise routing in engine compartments

Detailed Product Description

The Dayco Curved Radiator Hose 71017 is a radiator coolant hose specifically designed to meet the demands of cooling systems in select Chevrolet, Ford, GMC, Lincoln, Mercury, and Pontiac vehicles. Its EPDM construction offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain hose integrity under typical engine operating conditions. The hose features a dual inside diameter configuration with one end measuring 1 1/2 inches and the other 1 3/4 inches, allowing it to connect different sized fittings securely. This hose does not include a heat shield or protective sleeve but meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with specific bends and dual inside diameters to accommodate complex engine layouts. This product line is engineered to offer precise fitment and reliable coolant flow in vehicles where straight hoses are insufficient. The 71017 part number is part of this line, designed to fit a range of models from Chevrolet Capris to Ford Mustangs and Pontiac Firebirds, supporting proper coolant circulation and engine temperature regulation.

Common Applications and Problem Solving

  • Replacement for cracked or leaking radiator coolant hoses
  • Addressing coolant flow restrictions due to hose deformation
  • Resolving fitment issues in vehicles requiring dual diameter hose connections
  • Preventing overheating caused by compromised radiator hoses
  • Maintaining OEM coolant system integrity in Chevrolet, Ford, GMC, Lincoln, Mercury, and Pontiac models

Installation Notes and Tips

  • Ensure both hose ends match the corresponding radiator and engine fittings (1 1/2 inch and 1 3/4 inch)
  • Inspect clamps and replace if worn to secure the hose properly
  • Verify routing to avoid contact with moving parts or excessive heat sources
  • Drain coolant before removal to prevent spills and system contamination
  • Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71017 to meet SAE specifications, ensuring durability and performance under normal operating conditions. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability. Users should consult product packaging or official documentation for warranty information.

BrandDayco
Part Number71017
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 1/2
End 2 Inside Diameter1 3/4
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height18

This part fits 41 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1988FordThunderbird3.8LV6LowerCurved Radiator Hose
1988MercuryCougar3.8LV6LowerCurved Radiator Hose
1987FordThunderbird3.8LV6LowerCurved Radiator Hose
1987MercuryCougar3.8LV6LowerCurved Radiator Hose
1986FordLTD3.8LV6LowerCurved Radiator Hose
1986FordMustang3.8LV6LowerCurved Radiator Hose
1986FordThunderbird3.8LV6LowerCurved Radiator Hose
1986MercuryCapri3.8LV6LowerCurved Radiator Hose
1986MercuryCougar3.8LV6LowerCurved Radiator Hose
1986MercuryMarquis3.8LV6LowerCurved Radiator Hose
1985ChevroletP204.8LL6LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1985ChevroletP304.8LL6LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1985FordLTD3.8LV6LowerCurved Radiator Hose
1985FordMustang3.8LV6LowerCurved Radiator Hose
1985FordThunderbird3.8LV6LowerCurved Radiator Hose
1985GMCP35004.8LL6LowerCurved Radiator Hose
1985MercuryCapri3.8LV6LowerCurved Radiator Hose
1985MercuryCougar3.8LV6LowerCurved Radiator Hose
1985MercuryMarquis3.8LV6LowerCurved Radiator Hose
1984ChevroletP204.8LL6LowerFits vehicles without air conditioning.; Curved Radiator Hose
1984ChevroletP304.8LL6LowerFits vehicles without air conditioning.; Curved Radiator Hose
1984FordLTD3.8LV6LowerCurved Radiator Hose
1984FordMustang3.8LV6LowerCurved Radiator Hose
1984FordThunderbird3.8LV6LowerCurved Radiator Hose
1984GMCP35004.8LL6LowerCurved Radiator Hose
1984MercuryCapri3.8LV6LowerCurved Radiator Hose
1984MercuryCougar3.8LV6LowerCurved Radiator Hose
1984MercuryMarquis3.8LV6LowerCurved Radiator Hose
1983FordLTD3.8LV6LowerCurved Radiator Hose
1983FordMustang3.8LV6LowerCurved Radiator Hose
1983FordThunderbird3.8LV6LowerCurved Radiator Hose
1983GMCP35004.8LL6LowerCurved Radiator Hose
1983MercuryCapri3.8LV6LowerCurved Radiator Hose
1983MercuryCougar3.8LV6LowerCurved Radiator Hose
1983MercuryMarquis3.8LV6LowerCurved Radiator Hose
1982FordThunderbird3.8LV6LowerCurved Radiator Hose
1982LincolnContinental3.8LV6LowerCurved Radiator Hose
1982MercuryCougar3.8LV6LowerCurved Radiator Hose
1976PontiacFirebird4.1LL6LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1976PontiacFirebird4.1LL6Lowerw/o A.C., H.D. Cool; Curved Radiator Hose
1976PontiacFirebird4.1LL6Lowerw/o A.C., Std. Rad.; Curved 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:

22078M24125L

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