OE Quality
60-Day Returns

Dayco 72251 Radiator Coolant Hose - Upper
Overview of Dayco Curved Radiator Hose 72251
The Dayco Curved Radiator Hose 72251 is designed specifically for Ford Expedition and Lincoln Navigator models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.
- Made from high-quality EPDM rubber for heat and chemical resistance
- Black color with a curved design for precise fitment
- Inside diameter of 1 3/4 inches on both ends
- Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
- Single inside diameter hose type
- Trunk height of 27 inches for proper routing
Detailed Product Description
The Dayco Curved Radiator Hose 72251 is engineered to maintain optimal coolant flow in Ford Expedition and Lincoln Navigator vehicles. Its EPDM construction offers resistance to heat, ozone, and coolant chemicals, which helps extend the hose's service life. The hose features a consistent 1 3/4 inch inside diameter on both ends, ensuring a secure connection to the radiator and engine components. This single inside diameter hose is designed without a heat shield or protective sleeve, making it suitable for applications where additional protection is not required. The curved design facilitates proper routing within the engine bay, reducing stress and potential kinks.
About the Dayco Curved Radiator Hose Line
The Curved Radiator Hose product line by Dayco focuses on providing hoses with precise bends and dimensions tailored to specific vehicle applications. This line is intended to replace original equipment hoses with exact fit and reliable material quality. The 72251 part number is part of this line, offering a direct fit for Ford Expedition and Lincoln Navigator models, ensuring compatibility and ease of installation.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses
- Prevention of coolant leaks due to hose degradation
- Restoring proper coolant flow to avoid engine overheating
- Eliminating hose collapse or kinking in tight engine spaces
- Maintaining system pressure and preventing coolant contamination
Installation Notes and Tips
- Ensure the engine is cool before removing the old hose
- Check hose clamps and replace if worn or corroded
- Verify the hose routing matches the original to avoid kinks
- Lubricate hose ends with coolant or water for easier installation
- Tighten clamps securely but avoid over-tightening to prevent damage
Quality Assurance and Warranty
Dayco manufactures the Curved Radiator Hose 72251 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to meet OEM specifications for durability and performance.
| Brand | Dayco |
|---|---|
| Part Number | 72251 |
| 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 | 27 |
This part fits 5 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Ford | Expedition | Upper | Curved Radiator Hose | ||
| 2006 | Lincoln | Navigator | Upper | Curved Radiator Hose | ||
| 2005 | Ford | Expedition | Upper | Curved Radiator Hose | ||
| 2005 | Lincoln | Navigator | Upper | Curved Radiator Hose | ||
| 2004 | Ford | Expedition | 5.4L | V8 | Upper | Mfg. After 12/01/2003; 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.