HomeBelts and Cooling > Hoses and PipesDayco 70368 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper
Part #: 70368

Dayco 70368 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Curved Radiator Hose, Lower
19 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: Ford, Checker, Mercury, American Motors, and Edsel, E-100 Econoline, E-100 Econoline Club Wagon, E-150 Econoline, E-150 Econoline Club Wagon, E-250 Econoline, E-350 Econoline, Deluxe, Marathon, Taxicab, Fairlane, Aerobus, Club Wagon, Econoline, F-100, F-250, F-350, Falcon, Falcon Sedan Delivery, Ranchero, Caliente, Comet, Cyclone, Villager, Mustang, Ranch Wagon, Sprint, Meteor, Ambassador, and Ranger
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Overview of Dayco Curved Radiator Hose 70368

The Dayco Curved Radiator Hose 70368 is designed for reliable coolant flow in select Ford and Mercury vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Black color with a curved design for precise fitment
  • Inside diameter of 1 3/4 inches on both ends for uniform coolant flow
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 12 1/2 inches for proper routing in engine bay
  • Single inside diameter hose type for straightforward installation

Detailed Product Description

This Dayco Curved Radiator Hose 70368 is manufactured from EPDM (ethylene propylene diene monomer) rubber, known for its excellent resistance to heat, ozone, and coolant chemicals. The hose features a consistent 1 3/4 inch inside diameter on both ends, ensuring a secure and leak-free connection within the cooling system. Its curved shape is specifically designed to fit the cooling system layout of various Ford and Mercury models, including the E-100 Econoline, E-150 Econoline, E-250 Econoline, E-350 Econoline, F-100, F-250, F-350, Mustang, and Villager. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications. The absence of a heat shield or protective sleeve simplifies the design while maintaining durability under normal operating conditions.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dimensions to match specific vehicle cooling system requirements. This product line emphasizes material quality and adherence to SAE specifications to ensure compatibility and durability. The 70368 part number is a representative example, offering a tailored fit for Ford and Mercury vehicles that require a curved hose with a 1 3/4 inch inside diameter.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Ford and Mercury Econoline vans and trucks
  • Addressing coolant leaks caused by hose degradation or swelling
  • Restoring proper coolant flow to prevent engine overheating
  • Resolving fitment issues with incorrect or generic hoses in Mustang and Villager models
  • Maintaining cooling system integrity during routine maintenance or repairs

Installation Notes and Tips

  • Ensure the engine is cool before removing the old radiator hose to avoid burns
  • Inspect hose clamps and replace if corroded or damaged for a secure seal
  • Verify the hose routing matches the original to prevent kinks or interference
  • Lubricate hose ends with a small amount of coolant or water for easier installation
  • Double-check the hose ends fit tightly on radiator and engine fittings

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70368 to meet stringent SAE standards, ensuring reliable performance in automotive cooling systems. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality assurance. Users should consult the product packaging or Dayco’s official resources for warranty information.

BrandDayco
Part Number70368
PositionCurved Radiator Hose, Lower
ColorBlack
End 1 Inside Diameter1 3/4
End 2 Inside Diameter1 3/4
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height12 1/2

This part fits 19 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
1975FordE-100 EconolineManual4.9LL6LowerCurved Radiator Hose
1975FordE-100 Econoline Club WagonManual4.9LL6LowerCurved Radiator Hose
1975FordE-150 EconolineManual4.9LL6LowerCurved Radiator Hose
1975FordE-150 Econoline Club WagonManual4.9LL6LowerCurved Radiator Hose
1975FordE-250 EconolineManual4.9LL6LowerCurved Radiator Hose
1975FordE-350 EconolineManual4.9LL6LowerCurved Radiator Hose
1966FordEconoline2.8LL6Lowerw/A.P.; Curved Radiator Hose
1965FordF-100Automatic4.9LL6Lower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965FordF-100Automatic3.9LL6Lower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965FordF-100Automatic3.9LL6GASLower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965FordF-250Automatic3.9LL6Lower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965FordF-250Automatic4.9LL6Lower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965FordF-350Automatic3.9LL6Lower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965FordF-350Automatic4.9LL6Lower - Pipe To Radiatorw/Trans. Oil Cooler; Curved Radiator Hose
1965MercuryVillager4.7LV8LowerCurved Radiator Hose
1964FordMustang4.3LV8LowerCurved Radiator Hose
1964FordMustang4.7LV8LowerCurved Radiator Hose
1964MercuryVillager4.3LV8LowerCurved Radiator Hose
1964MercuryVillager4.7LV8LowerCurved 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:

20026S

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