HomeBelts and Cooling > Hoses and PipesDayco 70757 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper
Part #: 70757

Dayco 70757 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Curved Radiator Hose, Upper
18 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: Toyota and Mazda, T100, Corolla, and 626
Easy Returns — Return within 60 days for a full refund
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Overview of Dayco Curved Radiator Hose 70757

The Dayco Curved Radiator Hose 70757 is designed for reliable coolant flow in select Mazda and Toyota vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.

  • Constructed from EPDM material for heat and chemical resistance
  • Black color with a curved design for precise fitment
  • Inside diameter of 1 5/16 inches on both ends
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 11 1/2 inches for proper routing
  • Single inside diameter hose type

Detailed Product Description

This radiator coolant hose from Dayco is part of the Curved Radiator Hose product line, which focuses on delivering hoses shaped to fit specific vehicle cooling systems without modification. The curved design of part number 70757 allows for an exact fit in the cooling circuits of Mazda 626, Toyota Corolla, and Toyota T100 models. Manufactured from EPDM, the hose resists heat, ozone, and coolant chemicals, maintaining integrity over time. Both ends have an inside diameter of 1 5/16 inches, ensuring compatibility with factory radiator and engine connections. This hose does not include a heat shield or protective sleeve, consistent with its intended application in standard engine compartments.

Compatible Vehicles and Common Applications

  • Replacement radiator coolant hose for Mazda 626 models
  • Compatible with Toyota Corolla cooling systems
  • Fits Toyota T100 radiator hose connections
  • Addresses coolant leaks due to hose wear or cracking
  • Resolves overheating issues caused by compromised coolant flow

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 70757, ensure the hose is routed according to the vehicle manufacturer’s specifications to avoid kinks or interference with other engine components. Use appropriate clamps to secure both ends firmly. Inspect adjoining connections for corrosion or damage before installation. It is recommended to replace coolant and flush the system if the old hose showed signs of deterioration.

Quality Assurance and Warranty

Dayco manufactures this radiator coolant hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for durability and performance. While specific warranty details are not provided, Dayco products typically adhere to strict quality control processes to maintain reliability in automotive cooling systems.

BrandDayco
Part Number70757
PositionCurved Radiator Hose, Upper
ColorBlack
End 1 Inside Diameter1 5/16
End 2 Inside Diameter1 5/16
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height11 1/2

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1994ToyotaT1003.0LV6UpperCurved Radiator Hose
1993ToyotaT100UpperCurved Radiator Hose
1987ToyotaCorollaUpperCurved Radiator Hose
1986ToyotaCorollaUpperCurved Radiator Hose
1985Mazda626DIESELLower - Pipe To RadiatorCurved Radiator Hose
1985ToyotaCorolla1.6LL4UpperCurved Radiator Hose
1984Mazda626DIESELLower - Pipe To RadiatorCurved Radiator Hose
1984ToyotaCorolla1.6LL4UpperCurved Radiator Hose
1983ToyotaCorollaUpperCurved Radiator Hose
1979ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1978ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1977ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1976ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1974ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1973ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1972ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1971ToyotaCorolla1.2LL4LowerCurved Radiator Hose
1970ToyotaCorollaLowerCurved 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:

20193S

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