HomeBelts and Cooling > Hoses and PipesDayco 70748 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper
Part #: 70748

Dayco 70748 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Curved Radiator Hose, Upper
31 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: Isuzu, Ford, Mercedes-Benz, and Mercury, Rodeo, Rodeo Sport, Amigo, Courier, 280CE, 280E, Pinto, Bobcat, and Mustang II
Easy Returns — Return within 60 days for a full refund
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Overview of Dayco Curved Radiator Hose 70748

The Dayco Curved Radiator Hose 70748 is designed for reliable coolant flow in select Ford, Isuzu, and Mercury vehicles. Engineered with durable EPDM material, this dual inside diameter hose supports efficient engine cooling for models like the Ford Pinto and Isuzu Rodeo.

  • 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
  • Black color for standard OEM appearance
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 12 inches for proper routing in engine bay
  • Compatible with Ford Amigo, Isuzu Bobcat, Mercury Courier, and more

Detailed Product Description

The Dayco Curved Radiator Hose 70748 is a radiator coolant hose designed to maintain optimal engine temperature by facilitating coolant circulation. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose ensures durability under demanding conditions. 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 different radiator and engine fittings. Its black color matches OEM standards, providing a clean and professional look under the hood.

This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems. The 12-inch trunk height supports proper installation and routing within the engine compartment, reducing the risk of kinks or interference with other components.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with specific bends and dual diameter ends to accommodate unique radiator and engine configurations. This product line is engineered to meet stringent SAE specifications, ensuring compatibility and performance in various vehicle models. The 70748 part exemplifies this approach by offering a tailored fit for Ford, Isuzu, and Mercury vehicles requiring a curved hose with dual inside diameters.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Ford Pinto and Isuzu Rodeo
  • Resolving coolant leaks caused by hose degradation or improper fit
  • Preventing overheating issues due to compromised coolant flow
  • Addressing hose swelling or softening from heat exposure
  • Ensuring secure connections in cooling systems with varying pipe diameters

Installation Notes and Tips

  • Verify compatibility with your vehicle’s make and model before installation
  • Ensure both hose ends fit snugly on radiator and engine fittings
  • Use appropriate clamps to secure the hose and prevent leaks
  • Inspect surrounding components for wear or damage during replacement
  • Check coolant levels and system pressure after installation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70748 to meet SAE standards, ensuring reliable performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by manufacturer support for defects in material and workmanship.

BrandDayco
Part Number70748
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 Height12

This part fits 31 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003IsuzuRodeo2.2LL4UpperCurved Radiator Hose
2003IsuzuRodeo Sport2.2LL4UpperCurved Radiator Hose
2002IsuzuRodeo2.2LL4UpperCurved Radiator Hose
2002IsuzuRodeo Sport2.2LL4UpperCurved Radiator Hose
2001IsuzuRodeo2.2LL4UpperCurved Radiator Hose
2001IsuzuRodeo Sport2.2LL4UpperCurved Radiator Hose
2000IsuzuAmigo2.2LL4UpperCurved Radiator Hose
2000IsuzuRodeo2.2LL4UpperCurved Radiator Hose
1999IsuzuAmigo2.2LL4UpperCurved Radiator Hose
1999IsuzuRodeo2.2LL4UpperCurved Radiator Hose
1998IsuzuAmigo2.2LL4UpperCurved Radiator Hose
1998IsuzuRodeo2.2LL4UpperCurved Radiator Hose
1982FordCourier2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1981FordCourier2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1980FordCourier2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1980FordPintoLowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1980MercuryBobcatLowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1979FordCourier2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1979FordPinto2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1979MercuryBobcat2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1978FordCourier2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1978FordPinto2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1978MercuryBobcat2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1977FordCourier2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1977FordPinto2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1977MercuryBobcat2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1976FordPinto2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1976MercuryBobcat2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1975FordPinto2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1975MercuryBobcat2.3LL4LowerCompatible with vehicles containing air conditioning.; Curved Radiator Hose
1974FordPinto2.3LL4LowerCompatible with vehicles containing air conditioning.; 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:

20052S22087M22384M22520M

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