HomeBelts and Cooling > Hoses and PipesDayco 70575 Radiator Coolant Hose
Part #: 70575

Dayco 70575 Radiator Coolant Hose

Curved Radiator Hose, Lower, Lower - Pipe To Engine, Lower - Pipe To Radiator, and Upper
59 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, Lower - Pipe To Engine, Lower - Pipe To Radiator, and Upper
Fitment: Chevrolet, GMC, and Pontiac, Blazer, Bonneville, C10 Suburban, C20 Suburban, Catalina, Jimmy, K10 Suburban, and K20 Suburban
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Durable Radiator Coolant Hose for Chevrolet, GMC, and Pontiac

The Dayco Curved Radiator Hose 70575 is engineered to provide reliable coolant flow for select Chevrolet, GMC, and Pontiac vehicles. Designed with quality EPDM material, this black curved radiator hose ensures consistent performance in demanding engine environments.

  • Constructed from durable EPDM material 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 17 3/8 inches for proper routing in engine bays
  • Single inside diameter hose type for straightforward installation

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses that match the original equipment specifications for coolant systems. This product line emphasizes precise curvature and material quality to maintain optimal coolant circulation and engine temperature control. The 70575 part is a representative component designed to fit specific GM models, ensuring compatibility and durability.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. Both ends of the hose have an inside diameter of 1 3/4 inches, providing a consistent seal and flow rate. The hose does not include a heat shield or protective sleeve, focusing on a straightforward, reliable design. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications. The trunk height of 17 3/8 inches allows for proper fitment in the engine bay of compatible vehicles.

Compatible Vehicles and Common Applications

  • Chevrolet Blazer radiator coolant replacement
  • GMC Jimmy cooling system hose repair
  • Pontiac Bonneville radiator hose maintenance
  • Chevrolet and GMC Suburban (C10, C20, K10, K20) coolant hose replacement
  • Pontiac Catalina cooling system component

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to prevent burns. Verify the hose orientation matches the original routing to avoid kinks or interference with other engine components. Use appropriate clamps to secure the hose ends firmly, preventing leaks. Inspect adjoining components for wear or damage during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures this radiator coolant hose to meet industry SAE specifications, ensuring reliable performance under normal operating conditions. While specific warranty details are not provided, Dayco products typically adhere to strict quality control standards to support durability and fitment for Chevrolet, GMC, and Pontiac vehicles.

BrandDayco
Part Number70575
PositionCurved Radiator Hose, Lower, Lower - Pipe To Engine, Lower - Pipe To Radiator, and Upper
MaterialEpdm
ColorBlack
End 1 Inside Diameter1 3/4
End 2 Inside Diameter1 3/4
Contains Heat ShieldN
Contains Protective SleeveN
Hose TypeSingle i.d. hose
SAE SpecificationSae j20r4 class d-1, sae j1684 type ec
Trunk Height17 3/8

This part fits 59 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1970ChevroletBlazer5.0LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletBlazer5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletBlazer5.7LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletBlazer5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletC10 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletC10 Suburban5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletC20 Suburban5.0LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletC20 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletC20 Suburban5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletK10 Suburban5.0LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletK10 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletK10 Suburban5.7LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletK10 Suburban5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletK20 Suburban5.0LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletK20 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970ChevroletK20 Suburban5.7LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970ChevroletK20 Suburban5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970GMCG15/G1500 Van5.0LV8LowerCurved Radiator Hose
1970GMCG25/G2500 Van5.0LV8LowerCurved Radiator Hose
1970GMCG25/G2500 Van5.7LV8LowerCurved Radiator Hose
1970GMCG35/G3500 Van5.0LV8LowerCurved Radiator Hose
1970GMCG35/G3500 Van5.7LV8LowerCurved Radiator Hose
1970GMCJimmy5.0LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970GMCJimmy5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1970GMCJimmy5.7LV8Lower - Pipe To Enginew/4WD; Curved Radiator Hose
1970GMCJimmy5.7LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1969ChevroletBlazer5.0LV8LowerStandard radiator coolant hose.; Curved Radiator Hose
1969ChevroletBlazer5.7LV8LowerStandard radiator coolant hose.; Curved Radiator Hose
1969ChevroletC10 Suburban5.0LV8LowerCurved Radiator Hose
1969ChevroletC10 Suburban5.7LV8LowerCurved Radiator Hose
1969ChevroletC20 Suburban5.0LV8LowerCurved Radiator Hose
1969ChevroletC20 Suburban5.7LV8LowerCurved Radiator Hose
1969ChevroletK10 Suburban5.0LV8LowerCurved Radiator Hose
1969ChevroletK10 Suburban5.7LV8LowerCurved Radiator Hose
1969ChevroletK20 Suburban5.0LV8LowerCurved Radiator Hose
1969ChevroletK20 Suburban5.7LV8LowerCurved Radiator Hose
1968ChevroletC10 Suburban5.4LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletC10 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletC10 Suburban5.3LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletC20 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletC20 Suburban5.3LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletK10 Suburban5.4LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletK10 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletK10 Suburban5.3LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletK20 Suburban5.4LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletK20 Suburban5.0LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1968ChevroletK20 Suburban5.3LV8LowerFits vehicles without air conditioning.; Curved Radiator Hose
1967ChevroletC10 Suburban4.6LV8LowerCurved Radiator Hose
1967ChevroletC10 Suburban5.3LV8Lowerw/2WD; Curved Radiator Hose
1967ChevroletC20 Suburban4.6LV8LowerCurved Radiator Hose
1967ChevroletC20 Suburban5.3LV8Lowerw/2WD; Curved Radiator Hose
1967ChevroletK10 Suburban4.6LV8LowerCurved Radiator Hose
1967ChevroletK10 Suburban5.3LV8Lowerw/2WD; Curved Radiator Hose
1967ChevroletK20 Suburban4.6LV8LowerCurved Radiator Hose
1967ChevroletK20 Suburban5.3LV8Lowerw/2WD; Curved Radiator Hose
1967GMCG15/G1500 Van4.6LV8LowerCurved Radiator Hose
1967GMCG25/G2500 Van4.6LV8LowerCurved Radiator Hose
1963PontiacBonneville6.9LV8UpperCurved Radiator Hose
1963PontiacCatalina6.9LV8UpperCurved 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:

24020L

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