HomeBelts and Cooling > Hoses and PipesDayco 70564 Engine Coolant Bypass Hose
Part #: 70564

Dayco 70564 Engine Coolant Bypass Hose

Curved Radiator Hose
6 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
Fitment: Nissan, International, Chevrolet, and GMC, 720, Scout II, C10 Pickup, C10 Suburban, C20 Pickup, C20 Suburban, C30 Pickup, K10 Pickup, K10 Suburban, K20 Pickup, K20 Suburban, C15/C1500 Pickup, C15/C1500 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C35/C3500 Pickup, K15/K1500 Pickup, K15/K1500 Suburban, K25/K2500 Pickup, and K25/K2500 Suburban
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Overview of Dayco Curved Radiator Hose 70564

The Dayco Curved Radiator Hose 70564 is designed for reliable engine coolant bypass in select Chevrolet and Nissan vehicles. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent performance in demanding cooling system applications.

  • Constructed from EPDM for heat and chemical resistance
  • Black color with a 1-inch inside diameter on both ends
  • Single i.d. hose type for precise fitment
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 5 inches for proper routing

Detailed Product Description

The Dayco Curved Radiator Hose 70564 is part of the Curved Radiator Hose product line, which focuses on delivering hoses designed to accommodate specific engine coolant bypass needs with precise curvature and dimensions. This hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals, making it suitable for extended use in automotive cooling systems. The hose features a consistent 1-inch inside diameter on both ends, ensuring a secure and leak-free connection. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications. The black color and 5-inch trunk height support proper installation and routing within the engine bay.

Compatible Vehicles and Applications

This engine coolant bypass hose is compatible with various Chevrolet and Nissan models, including Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, and K20 Suburban trucks. The part number 70564 is specifically designed to meet the cooling system requirements of these vehicles, providing a reliable replacement option for maintaining optimal engine temperature regulation.

  • Replaces worn or cracked radiator bypass hoses
  • Prevents coolant leaks and overheating issues
  • Restores proper coolant flow in Chevrolet and Nissan Suburban models
  • Addresses hose swelling or softening due to age or heat exposure
  • Ensures compliance with OEM coolant system specifications

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 70564, ensure the engine is cool before removal of the old hose to avoid burns. Verify the hose routing matches the original configuration to prevent kinks or interference with other engine components. Use appropriate clamps to secure both ends of the hose firmly. Inspect adjacent hoses and connections for wear during installation to maintain overall cooling system integrity.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70564 to meet stringent SAE specifications, ensuring durability and performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability, supporting long-term vehicle operation when installed correctly.

BrandDayco
Part Number70564
PositionCurved Radiator Hose
ColorBlack
End 1 Inside Diameter1
End 2 Inside Diameter1
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R4 Class D-1, SAE J1684 Type EC
Trunk Height5

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1983Nissan7202.2LL4N/AEarly; Curved Radiator Hose
1982Nissan7202.2LL4N/ACurved Radiator Hose
1967ChevroletC10 Suburban5.3LV8N/ACurved Radiator Hose
1967ChevroletC20 Suburban5.3LV8N/ACurved Radiator Hose
1967ChevroletK10 Suburban5.3LV8N/ACurved Radiator Hose
1967ChevroletK20 Suburban5.3LV8N/ACurved 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:

20041S

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