OE Quality
60-Day Returns

Dayco 71898 Radiator Coolant Hose - Upper
Overview of Dayco Curved Radiator Hose 71898
The Dayco Curved Radiator Hose 71898 is designed specifically for Ford F-150 and F-150 Heritage models. Engineered with durable EPDM material, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.
- Constructed from high-quality EPDM 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 consistent coolant flow
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Single inside diameter hose type with a trunk height of 22 1/2 inches
Detailed Product Description
The Dayco Curved Radiator Hose 71898 is a single inside diameter hose made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features a consistent 1 3/4 inch inside diameter on both ends, ensuring a secure and leak-free connection within the cooling system. Its black color and curved shape are designed to match the original equipment specifications for Ford F-150 and F-150 Heritage trucks, providing a direct replacement option. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, which define performance requirements for coolant hoses, including pressure, temperature, and durability.
About the Curved Radiator Hose Product Line
The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and shapes to fit specific vehicle cooling system layouts. This product line is engineered to maintain coolant flow efficiency while accommodating the spatial constraints of engine compartments. The 71898 part number is part of this line, offering a tailored fit for Ford F-150 and F-150 Heritage models without the need for modifications.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in Ford F-150 and F-150 Heritage vehicles
- Prevention of coolant leaks caused by hose degradation or improper fit
- Restoration of proper coolant flow to avoid engine overheating
- Addressing hose swelling or softening due to heat exposure
- Ensuring compliance with OEM specifications for cooling system components
Installation Notes and Tips
When installing the Dayco Curved Radiator Hose 71898, ensure the engine is cool to prevent injury from hot coolant. Verify that the hose ends match the 1 3/4 inch inside diameter fittings on your vehicle. Use appropriate clamps to secure the hose and check for any signs of twisting or kinking that could restrict coolant flow. Inspect adjacent components for wear or damage during installation to maintain overall cooling system integrity.
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 71898 to meet stringent SAE standards, ensuring durability and performance under typical operating conditions. The EPDM material provides resistance to heat and coolant chemicals, contributing to a longer service life. Warranty coverage details should be confirmed with the original equipment manufacturer or supplier, as Dayco products typically come with limited warranties covering defects in material and workmanship.
| Brand | Dayco |
|---|---|
| Part Number | 71898 |
| Position | Curved Radiator Hose, Upper |
| Color | Black |
| End 1 Inside Diameter | 1 3/4 |
| End 2 Inside Diameter | 1 3/4 |
| Hose Type | Single I.D. Hose |
| Material | EPDM |
| SAE Specification | SAE J20R4 Class D-1, SAE J1684 Type EC |
| Trunk Height | 22 1/2 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Ford | F-150 Heritage | 4.2L | V6 | Upper | Curved Radiator Hose |
| 2003 | Ford | F-150 | 4.2L | V6 | Upper | Curved Radiator Hose |
| 2002 | Ford | F-150 | 4.2L | V6 | Upper | Curved Radiator Hose |
| 2001 | Ford | F-150 | 4.2L | V6 | Upper | Curved Radiator Hose |
| 2000 | Ford | F-150 | 4.2L | V6 | Upper | Curved Radiator Hose |
| 1999 | Ford | F-150 | 4.2L | V6 | Upper | Curved Radiator Hose |
| 1998 | Ford | F-150 | 4.2L | V6 | Upper | Curved Radiator Hose |
| 1997 | Ford | F-150 | 4.2L | V6 | Upper | 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.