HomeBelts and Cooling > Hoses and PipesDayco 71422 Radiator Coolant Hose - Upper
Part #: 71422

Dayco 71422 Radiator Coolant Hose - Upper

Curved Radiator Hose, Upper
⚙️ 21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Curved Radiator Hose, Upper
🚗Fitment: Chevrolet and GMC, R2500, R2500 Suburban, R3500, V2500 Suburban, and V3500
🔄Easy Returns — Return within 60 days for a full refund
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Durable Radiator Coolant Hose for Chevrolet and GMC Vehicles

The Dayco Curved Radiator Hose 71422 is engineered to provide reliable coolant flow for select Chevrolet and GMC trucks and SUVs. Designed with precision to meet specific vehicle requirements, this radiator coolant hose ensures proper fit and function for models like the Chevrolet R2500 and GMC R3500.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Dual inside diameter design with 1 1/4 inch and 1 1/2 inch ends for secure connections
  • Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Compatible with Chevrolet and GMC R2500, R2500 Suburban, R3500, V2500 Suburban, and V3500 models

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses that accommodate specific engine bay configurations requiring curved coolant hoses. This product line emphasizes durability and precise fitment, reducing the risk of leaks and coolant loss. The 71422 part number is part of this line, designed to meet the cooling system demands of heavy-duty Chevrolet and GMC trucks and SUVs.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The dual inside diameter hose features a 1 1/4 inch opening on one end and a 1 1/2 inch opening on the other, allowing it to connect different sized fittings securely. The hose does not include a heat shield or protective sleeve, which is typical for this type of radiator hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in Chevrolet R2500 and GMC R3500 vehicles
  • Addressing coolant leaks caused by hose degradation or damage
  • Ensuring proper coolant flow in heavy-duty trucks and SUVs
  • Preventing overheating issues related to faulty radiator hoses
  • Maintaining OEM fit and function in cooling system repairs

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71422, ensure the hose is properly seated on the radiator and engine fittings to prevent leaks. Use appropriate clamps tightened to manufacturer specifications. Inspect surrounding components for wear or damage during installation. This hose is designed specifically for Chevrolet and GMC R2500, R2500 Suburban, R3500, V2500 Suburban, and V3500 models, so verify vehicle compatibility before installation.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71422 to meet strict SAE standards, ensuring durability and performance. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand's commitment to automotive component reliability.

BrandDayco
Part Number71422
PositionCurved Radiator Hose, Upper
MaterialEpdm
ColorBlack
End 1 Inside Diameter1 1/4
End 2 Inside Diameter1 1/2
Contains Heat ShieldN
Contains Protective SleeveN
Hose TypeDual i.d. hose
SAE SpecificationSae j20r4 class d-1, sae j1684 type ec
Trunk Height26

This part fits 21 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991ChevroletR2500 Suburban7.4LV8UpperCurved Radiator Hose
1991ChevroletR35007.4LV8UpperCurved Radiator Hose
1991ChevroletV35007.4LV8UpperCurved Radiator Hose
1991GMCR2500 Suburban7.4LV8UpperCurved Radiator Hose
1991GMCR35007.4LV8UpperCurved Radiator Hose
1991GMCV35007.4LV8UpperCurved Radiator Hose
1990ChevroletR2500 Suburban7.4LV8UpperCurved Radiator Hose
1990ChevroletR35007.4LV8UpperCurved Radiator Hose
1990ChevroletV2500 Suburban7.4LV8UpperCurved Radiator Hose
1990ChevroletV35007.4LV8UpperCurved Radiator Hose
1990GMCR2500 Suburban7.4LV8UpperCurved Radiator Hose
1990GMCR35007.4LV8UpperCurved Radiator Hose
1990GMCV35007.4LV8UpperCurved Radiator Hose
1989ChevroletR25007.4LV8UpperSingle A.P.; Curved Radiator Hose
1989ChevroletR2500 Suburban7.4LV8UpperCurved Radiator Hose
1989ChevroletR35007.4LV8UpperSingle A.P.; Curved Radiator Hose
1989ChevroletV35007.4LV8UpperSingle A.P.; Curved Radiator Hose
1989GMCR25007.4LV8UpperSingle A.P.; Curved Radiator Hose
1989GMCR2500 Suburban7.4LV8UpperCurved Radiator Hose
1989GMCR35007.4LV8UpperSingle A.P.; Curved Radiator Hose
1989GMCV35007.4LV8UpperSingle A.P.; 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:

26152X

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