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Dayco 71422 Radiator Coolant Hose - Upper
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.
| Brand | Dayco |
| Part Number | 71422 |
| Position | Curved Radiator Hose, Upper |
| Material | Epdm |
| Color | Black |
| End 1 Inside Diameter | 1 1/4 |
| End 2 Inside Diameter | 1 1/2 |
| Contains Heat Shield | N |
| Contains Protective Sleeve | N |
| Hose Type | Dual i.d. hose |
| SAE Specification | Sae j20r4 class d-1, sae j1684 type ec |
| Trunk Height | 26 |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Chevrolet | R2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1991 | Chevrolet | R3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1991 | Chevrolet | V3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1991 | GMC | R2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1991 | GMC | R3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1991 | GMC | V3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | Chevrolet | R2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | Chevrolet | R3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | Chevrolet | V2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | Chevrolet | V3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | GMC | R2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | GMC | R3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1990 | GMC | V3500 | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1989 | Chevrolet | R2500 | 7.4L | V8 | Upper | Single A.P.; Curved Radiator Hose |
| 1989 | Chevrolet | R2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1989 | Chevrolet | R3500 | 7.4L | V8 | Upper | Single A.P.; Curved Radiator Hose |
| 1989 | Chevrolet | V3500 | 7.4L | V8 | Upper | Single A.P.; Curved Radiator Hose |
| 1989 | GMC | R2500 | 7.4L | V8 | Upper | Single A.P.; Curved Radiator Hose |
| 1989 | GMC | R2500 Suburban | 7.4L | V8 | Upper | Curved Radiator Hose |
| 1989 | GMC | R3500 | 7.4L | V8 | Upper | Single A.P.; Curved Radiator Hose |
| 1989 | GMC | V3500 | 7.4L | V8 | Upper | Single 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.