HomeBelts and Cooling > Hoses and PipesDayco 70965 Radiator Coolant Hose - Upper
Part #: 70965

Dayco 70965 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
44 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, Upper
Fitment: Ford, Lincoln, and Mercury, Mustang, Mark VII, Thunderbird, Cougar, Continental, Capri, and LTD
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 70965

The Dayco Curved Radiator Hose 70965 is designed to provide reliable coolant flow for select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material and a dual inside diameter design, this radiator coolant hose supports efficient engine cooling in models like the Mustang, Thunderbird, and Continental.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Dual inside diameters: 1 1/4 inch and 1 1/2 inch ends for precise fitment
  • Includes a protective sleeve to enhance durability
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Compatible with Ford, Lincoln, and Mercury models including Capri, Cougar, LTD, Mark VII, Mustang, and Thunderbird

Detailed Product Description

The Dayco Curved Radiator Hose part number 70965 is a specialized radiator coolant hose designed to maintain optimal engine temperature by facilitating coolant flow. Made from EPDM (ethylene propylene diene monomer), this hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring long service life. The dual inside diameter design, with one end measuring 1 1/4 inches and the other 1 1/2 inches, allows for a secure and precise connection to the radiator and engine fittings. Additionally, the hose includes a protective sleeve that guards against abrasion and external damage, although it does not contain a heat shield. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive cooling systems.

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 bay layouts. This product line is engineered to meet stringent SAE specifications, ensuring compatibility and durability for various vehicle applications. The 70965 model exemplifies this approach by combining material quality and design precision to fit multiple Ford, Lincoln, and Mercury vehicles.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Ford Mustang and Thunderbird models
  • Addressing coolant leaks caused by hose degradation in Lincoln Continental and Mark VII vehicles
  • Resolving fitment issues in Mercury Capri and Cougar where dual diameter hoses are required
  • Preventing overheating due to compromised coolant flow in Ford LTD engines
  • Upgrading aging hoses to maintain engine cooling efficiency

Installation Notes and Tips

  • Ensure the hose ends match the specified inside diameters (1 1/4 inch and 1 1/2 inch) for proper fit
  • Inspect surrounding components for wear or damage before installation
  • Use appropriate clamps to secure the hose and prevent leaks
  • Verify that the protective sleeve is positioned correctly to avoid abrasion
  • Follow vehicle manufacturer guidelines for coolant system maintenance during replacement

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70965 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The use of EPDM material and protective sleeve enhances durability and resistance to environmental factors. While specific warranty details are not provided, Dayco products typically adhere to quality control standards consistent with automotive OEM replacement parts.

BrandDayco
Part Number70965
PositionCurved Radiator Hose, Upper
ColorBlack
Contains Protective SleeveY
End 1 Inside Diameter1 1/4
End 2 Inside Diameter1 1/2
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height15

This part fits 44 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993FordMustang5.0LV8UpperCurved Radiator Hose
1992FordMustang5.0LV8UpperCurved Radiator Hose
1992LincolnMark VIIUpperCurved Radiator Hose
1991FordMustang5.0LV8UpperCurved Radiator Hose
1991LincolnMark VIIUpperCurved Radiator Hose
1990FordMustang5.0LV8UpperCurved Radiator Hose
1990LincolnMark VIIUpperCurved Radiator Hose
1989FordMustang5.0LV8UpperCurved Radiator Hose
1989LincolnMark VIIUpperCurved Radiator Hose
1988FordMustang5.0LV8UpperCurved Radiator Hose
1988FordThunderbird5.0LV8UpperCurved Radiator Hose
1988LincolnMark VIIUpperCurved Radiator Hose
1988MercuryCougar5.0LV8UpperCurved Radiator Hose
1987FordMustang5.0LV8UpperCurved Radiator Hose
1987FordThunderbird5.0LV8UpperCurved Radiator Hose
1987LincolnContinentalUpperCurved Radiator Hose
1987LincolnMark VIIUpperCurved Radiator Hose
1987MercuryCougar5.0LV8UpperCurved Radiator Hose
1986FordMustang5.0LV8UpperCurved Radiator Hose
1986FordThunderbird5.0LV8UpperCurved Radiator Hose
1986LincolnContinentalUpperCurved Radiator Hose
1986LincolnMark VIIUpperCurved Radiator Hose
1986MercuryCapri5.0LV8UpperCurved Radiator Hose
1986MercuryCougar5.0LV8UpperCurved Radiator Hose
1985FordLTD5.0LV8UpperCurved Radiator Hose
1985FordMustang5.0LV8UpperCurved Radiator Hose
1985LincolnContinental5.0LV8UpperCurved Radiator Hose
1985LincolnMark VII5.0LV8UpperCurved Radiator Hose
1985MercuryCapri5.0LV8UpperCurved Radiator Hose
1984FordLTD5.0LV8UpperCurved Radiator Hose
1984FordMustang5.0LV8UpperCurved Radiator Hose
1984MercuryCapri5.0LV8UpperCurved Radiator Hose
1983FordMustang5.0LV8UpperCurved Radiator Hose
1983MercuryCapri5.0LV8UpperCurved Radiator Hose
1982FordMustang5.0LV8UpperCurved Radiator Hose
1982FordMustang4.2LV8UpperCurved Radiator Hose
1982MercuryCapri5.0LV8UpperCurved Radiator Hose
1982MercuryCapri4.2LV8UpperCurved Radiator Hose
1981FordMustang4.2LV8UpperCurved Radiator Hose
1981MercuryCapri4.2LV8UpperCurved Radiator Hose
1980FordMustang4.2LV8UpperCurved Radiator Hose
1980MercuryCapri4.2LV8UpperCurved Radiator Hose
1979FordMustang5.0LV8UpperCurved Radiator Hose
1979MercuryCapri5.0LV8UpperCurved 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:

24097L

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