OE Quality
60-Day Returns

Gates 51794 Radiator Coolant Hose - Lower or Lower - Connector To Radiator
Reliable Radiator Coolant Hose for Ram 2500 and 3500
The Gates Molded Coolant Hose 51794 is engineered to provide dependable cooling system performance for Ram 2500 and 3500 trucks. Designed with durable EPDM and plastic materials, this radiator coolant hose ensures efficient coolant flow and long-lasting service.
Key Features of Gates Molded Coolant Hose 51794
- Constructed from high-quality EPDM and plastic for heat and chemical resistance
- Molded design with a male quick connector for secure and leak-free connections
- Centerline length of 223 mm (8.78 inches) for precise fitment
- End 1 inside diameter: 1.75 inches (44 mm); End 2 inside diameter: 1.84 inches (47 mm)
- Contains one quick connect fitting; no internal spring
- Compatible with Ram 2500 and 3500 models
About the Gates Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates focuses on precision-engineered hoses designed to meet specific vehicle cooling system requirements. This product line features molded construction and modular components such as quick connectors, which simplify installation and improve reliability. The 51794 hose exemplifies these qualities, providing a tailored fit and durable materials suitable for demanding automotive environments.
Detailed Product Description
The Gates Molded Coolant Hose 51794 is a radiator coolant hose designed specifically for Ram 2500 and 3500 trucks. Made from EPDM and plastic, it offers resistance to heat, ozone, and coolant chemicals, ensuring durability under engine operating conditions. The molded design includes a male quick connector, facilitating a secure and efficient connection without the need for additional clamps or fittings. With a centerline length of 223 mm (8.78 inches) and carefully measured inside diameters at both ends (1.75 inches/44 mm and 1.84 inches/47 mm), this hose provides a precise fit to maintain optimal coolant flow and prevent leaks.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses in Ram 2500 and 3500 trucks
- Resolving coolant leaks caused by hose degradation or improper fit
- Maintaining proper engine temperature by ensuring efficient coolant circulation
- Preventing overheating issues related to faulty or damaged hoses
- Upgrading to a molded hose with quick connect fittings for easier maintenance
Installation Notes and Tips
When installing the Gates Molded Coolant Hose 51794, ensure the quick connect fitting is fully engaged to prevent leaks. Verify that the hose is routed correctly without kinks or sharp bends to maintain coolant flow. It is recommended to inspect adjacent components for wear or damage during replacement. Use appropriate tools to disconnect and connect the quick connector to avoid damage to the hose or fittings.
Quality Assurance and Warranty
Gates is a recognized manufacturer of automotive cooling components, and the Molded Coolant Hose 51794 is built to meet OEM specifications for durability and performance. While specific warranty details are not provided, Gates products typically undergo rigorous quality control to ensure reliability in demanding conditions.
| Brand | Gates |
| Part Number | 51794 |
| Position | Molded Coolant Hose, Lower - Connector To Radiator and Lower |
| Material | Epdm, plastic |
| End 1 Inside Diameter | 1.75 |
| End 1 Inside Diameter | 44 |
| End 2 Inside Diameter | 1.84 |
| End 2 Inside Diameter | 47 |
| Contains Spring | No |
| Centerline Length | 223 |
| Centerline Length | 8.78 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 1 |
| Modular Components | Male quick connector |
| Modular Hose | Yes |
| Molded | Yes |
| Number of Quick Connect Fittings | 1 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Ram | 2500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2018 | Ram | 3500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2017 | Ram | 2500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2017 | Ram | 3500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2016 | Ram | 2500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2016 | Ram | 3500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2015 | Ram | 2500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | Molded Coolant Hose |
| 2015 | Ram | 3500 | 6.7L | L6 | DIESEL | Lower - Connector To Radiator | 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.