OE Quality
60-Day Returns

Gates 51857 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 51857
The Gates Molded Coolant Hose 51857 is designed specifically for Ford F-150 models, providing reliable radiator coolant flow. Constructed from durable EPDM material, this molded hose ensures consistent performance under varying engine temperatures.
- Made from high-quality EPDM material for heat and chemical resistance
- Centerline length of 26.41 inches (671 mm) for precise fitment
- Inside diameter of 1.44 inches (37 mm) on both ends for consistent coolant flow
- Includes one female quick connector for secure attachment
- Molded design enhances durability and leak prevention
- Does not contain a spring, reducing potential failure points
About the Molded Coolant Hose Product Line
The Gates Molded Coolant Hose line focuses on engineered hoses that are pre-formed to exact specifications, eliminating the need for bending or shaping during installation. This product line is designed to provide a precise fit and reliable coolant transfer, reducing the risk of leaks and improving overall cooling system efficiency. The 51857 part number is a molded radiator coolant hose tailored for Ford F-150 vehicles, ensuring compatibility and performance.
Detailed Product Description
This radiator coolant hose features a molded construction made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1.44 inches (37 mm), matching OEM specifications for proper coolant flow. The hose measures 26.41 inches (671 mm) in centerline length, providing an exact fit for the Ford F-150 cooling system. The inclusion of a female quick connector simplifies installation and ensures a secure connection without the need for additional clamps or fittings. The absence of springs within the hose reduces potential points of failure, contributing to long-term durability.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses on Ford F-150 trucks
- Addressing coolant leaks caused by hose degradation or improper fit
- Resolving overheating issues related to coolant flow restrictions
- Upgrading to a molded hose for improved coolant system reliability
- Ensuring proper coolant circulation to maintain engine temperature stability
Installation Notes and Tips
Before installation, verify that the hose matches the Ford F-150 model year and engine specifications. Ensure the cooling system is cool and depressurized to avoid injury. The molded design and female quick connector allow for straightforward installation without modification. Inspect hose ends and connectors for damage or debris before attaching. Properly secure the hose to prevent leaks and maintain coolant system integrity.
Quality Assurance and Warranty
Gates Molded Coolant Hose 51857 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material and molded construction provide resistance to heat, pressure, and coolant chemicals. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in material and workmanship, ensuring confidence in product reliability.
| Brand | Gates |
| Part Number | 51857 |
| Position | Molded Coolant Hose, Upper |
| Material | Epdm |
| End 1 Inside Diameter | 1.44 |
| End 1 Inside Diameter | 37 |
| End 2 Inside Diameter | 1.44 |
| End 2 Inside Diameter | 37 |
| Contains Spring | No |
| Centerline Length | 26.41 |
| Centerline Length | 671 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 1 |
| Modular Components | Female quick connector |
| Modular Hose | No |
| Molded | Yes |
| Number of Quick Connect Fittings | 1 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Ford | F-150 | 5.0L | V8 | FLEX | Upper | Molded Coolant Hose |
| 2020 | Ford | F-150 | 5.0L | V8 | GAS | Upper | Molded Coolant Hose |
| 2019 | Ford | F-150 | 5.0L | V8 | FLEX | Upper | Molded Coolant Hose |
| 2019 | Ford | F-150 | 5.0L | V8 | GAS | Upper | Molded Coolant Hose |
| 2018 | Ford | F-150 | 5.0L | V8 | FLEX | Upper | Molded Coolant Hose |
| 2018 | Ford | F-150 | 5.0L | V8 | GAS | Upper | Molded Coolant 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.