HomeBelts and Cooling > Hoses and PipesDayco 70957 Radiator Coolant Hose - Upper
Part #: 70957

Dayco 70957 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
67 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$26.27Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Curved Radiator Hose, Upper
Fitment: Ford, Mercury, and Lincoln, Country Squire, LTD Crown Victoria, Colony Park, Grand Marquis, LTD, Town Car, Ranger, Mark VI, Marquis, and Continental
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 70957

The Dayco Curved Radiator Hose 70957 is designed to provide reliable coolant flow for select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and long-lasting performance in your cooling system.

  • 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
  • Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
  • Black color for standard OEM appearance
  • Trunk height of 19 inches suitable for specific vehicle routing

Detailed Product Description

The Dayco Curved Radiator Hose 70957 is a dual inside diameter hose designed to meet the cooling system requirements of various Ford, Lincoln, and Mercury models, including the Colony Park, Continental, Grand Marquis, LTD, LTD Crown Victoria, Mark VI, Marquis, Ranger, and Town Car. Made from EPDM material, this hose offers resistance to heat, ozone, and coolant chemicals, ensuring durability under typical engine operating conditions. The hose features a curved design to accommodate specific engine bay layouts and has a trunk height of 19 inches to fit routing needs. It does not include a heat shield or protective sleeve, focusing on core functionality and fitment.

Compatible Vehicles and Applications

  • Ford Colony Park
  • Lincoln Continental
  • Mercury Grand Marquis
  • Ford LTD and LTD Crown Victoria
  • Lincoln Mark VI
  • Mercury Marquis
  • Ford Ranger
  • Lincoln Town Car

Common Issues Addressed by This Radiator Coolant Hose

  • Coolant leaks due to cracked or worn hoses
  • Overheating caused by restricted coolant flow
  • Swelling or softening of old radiator hoses
  • Improper fitment from generic hoses causing coolant loss
  • Degradation from exposure to engine heat and chemicals

Installation Notes and Tips

  • Ensure engine is cool before removing the old hose
  • Check hose clamps and replace if corroded or damaged
  • Verify the correct orientation of the dual inside diameter ends
  • Inspect surrounding components for wear or damage during installation
  • Test for leaks after installation by running the engine to operating temperature

Quality Assurance and Standards

The Dayco Curved Radiator Hose 70957 meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for coolant hoses. Manufactured with EPDM material, it provides resistance to heat, ozone, and coolant chemicals, contributing to reliable performance. While no specific warranty information is provided, Dayco products are generally produced under strict quality control processes to meet OEM requirements.

BrandDayco
Part Number70957
PositionCurved Radiator Hose, Upper
ColorBlack
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 Height19

This part fits 67 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991FordLTD Crown Victoria5.8LV8UpperPolice Car; Curved Radiator Hose
1991MercuryColony ParkUpperPolice Car; Curved Radiator Hose
1991MercuryGrand MarquisUpperPolice Car; Curved Radiator Hose
1990FordLTD Crown Victoria5.8LV8UpperPolice Car; Curved Radiator Hose
1990MercuryColony ParkUpperPolice Car; Curved Radiator Hose
1990MercuryGrand MarquisUpperPolice Car; Curved Radiator Hose
1989FordLTD Crown Victoria5.8LV8UpperPolice Car; Curved Radiator Hose
1988FordLTD Crown Victoria5.8LV8UpperPolice Car; Curved Radiator Hose
1988MercuryGrand Marquis5.8LV8UpperPolice Car; Curved Radiator Hose
1987FordLTD Crown Victoria5.8LV8UpperCurved Radiator Hose
1987MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1986FordLTD5.8LV8UpperCurved Radiator Hose
1986MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1985FordLTD5.0LV8UpperCurved Radiator Hose
1985FordLTD5.8LV8UpperCurved Radiator Hose
1985LincolnTown CarUpperCurved Radiator Hose
1985MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1985MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1984FordLTD5.0LV8UpperCurved Radiator Hose
1984FordLTD5.8LV8UpperCurved Radiator Hose
1984FordRanger2.2LL4UpperCurved Radiator Hose
1984LincolnTown CarUpperCurved Radiator Hose
1984MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1984MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1983FordLTD5.0LV8UpperCurved Radiator Hose
1983FordLTD5.8LV8UpperCurved Radiator Hose
1983FordRanger2.2LL4UpperCurved Radiator Hose
1983LincolnMark VIUpperCurved Radiator Hose
1983LincolnTown CarUpperCurved Radiator Hose
1983MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1983MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1982FordLTD5.0LV8UpperCurved Radiator Hose
1982FordLTD5.8LV8UpperCurved Radiator Hose
1982FordLTD4.2LV8UpperCurved Radiator Hose
1982LincolnMark VIUpperCurved Radiator Hose
1982LincolnTown CarUpperCurved Radiator Hose
1982MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1982MercuryGrand Marquis4.2LV8UpperCurved Radiator Hose
1982MercuryMarquis5.0LV8UpperCurved Radiator Hose
1982MercuryMarquis4.2LV8UpperCurved Radiator Hose
1981FordLTD5.0LV8UpperCurved Radiator Hose
1981FordLTD5.8LV8UpperCurved Radiator Hose
1981FordLTD4.2LV8UpperCurved Radiator Hose
1981LincolnMark VIUpperCurved Radiator Hose
1981LincolnTown CarUpperCurved Radiator Hose
1981MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1981MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1981MercuryGrand Marquis4.2LV8UpperCurved Radiator Hose
1981MercuryMarquis5.0LV8UpperCurved Radiator Hose
1981MercuryMarquis5.8LV8UpperCurved Radiator Hose
1981MercuryMarquis4.2LV8UpperCurved Radiator Hose
1980FordLTD5.0LV8UpperCurved Radiator Hose
1980FordLTD5.8LV8UpperCurved Radiator Hose
1980LincolnContinental5.0LV8UpperCurved Radiator Hose
1980LincolnContinental5.8LV8UpperCurved Radiator Hose
1980LincolnMark VI5.0LV8UpperCurved Radiator Hose
1980LincolnMark VI5.8LV8UpperCurved Radiator Hose
1980MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1980MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1980MercuryMarquis5.0LV8UpperCurved Radiator Hose
1980MercuryMarquis5.8LV8UpperCurved Radiator Hose
1979FordLTD5.0LV8UpperCurved Radiator Hose
1979FordLTD5.8LV8UpperCurved Radiator Hose
1979MercuryGrand Marquis5.0LV8UpperCurved Radiator Hose
1979MercuryGrand Marquis5.8LV8UpperCurved Radiator Hose
1979MercuryMarquis5.0LV8UpperCurved Radiator Hose
1979MercuryMarquis5.8LV8UpperCurved 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:

24102L

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