OE Quality
60-Day Returns

Gates 51948 Radiator Coolant Hose - Upper - Connector To Engine or Upper - Pipe To Thermostat
Overview of Gates Molded Coolant Hose 51948
The Gates Molded Coolant Hose 51948 is designed specifically for Mini Cooper and Mini Cooper Countryman models. Constructed from durable EPDM and plastic materials, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.
- Material: EPDM and plastic for heat and chemical resistance
- End 1 inside diameter: 1.22 inches (31 mm)
- End 2 inside diameter: 1.25 inches (32 mm)
- Centerline length: 19.5 inches (495 mm)
- Does not contain a spring
- Designed as an outlet hose
About the Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that fit specific vehicle applications. These hoses are molded to exact dimensions to ensure proper fit and function, reducing the risk of leaks and premature wear. The 51948 part number is part of this line, providing a tailored solution for the cooling needs of Mini Cooper and Cooper Countryman vehicles.
Detailed Product Description
This radiator coolant hose features EPDM rubber combined with plastic components, offering resistance to heat, ozone, and coolant chemicals. The hose’s two ends have slightly different inside diameters—1.22 inches (31 mm) on one end and 1.25 inches (32 mm) on the other—allowing for a secure connection to the cooling system. With a centerline length of 19.5 inches (495 mm), it fits precisely within the engine bay layout of compatible Mini models. The absence of a spring inside the hose indicates a straightforward, flexible design optimized for coolant flow without internal reinforcement.
Common Applications and Issues Addressed
- Replacement of worn or cracked radiator coolant hoses on Mini Cooper and Cooper Countryman
- Prevention of coolant leaks caused by hose degradation
- Maintaining proper coolant flow to avoid engine overheating
- Addressing hose swelling or softening due to heat exposure
- Ensuring secure hose connections with correct diameter fittings
Installation Notes and Tips
When installing the Gates Molded Coolant Hose 51948, ensure the vehicle is cool to prevent burns from hot coolant. Verify the hose orientation matches the original part, noting the different inside diameters at each end. Use appropriate clamps to secure the hose firmly without over-tightening, which can damage the hose. Inspect surrounding components for wear or damage during installation to maintain overall cooling system integrity.
Quality Assurance and Warranty
Gates manufactures the Molded Coolant Hose 51948 to meet OEM specifications for Mini Cooper and Cooper Countryman vehicles. The use of EPDM and plastic materials ensures durability and resistance to common coolant system stresses. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed quality assurance to support reliable performance.
| Brand | Gates |
| Part Number | 51948 |
| Position | Molded Coolant Hose, Upper - Connector To Engine and Upper - Pipe To Thermostat |
| Material | Epdm, plastic |
| End 1 Inside Diameter | 1.22 |
| End 1 Inside Diameter | 31 |
| End 2 Inside Diameter | 1.25 |
| End 2 Inside Diameter | 32 |
| Contains Spring | No |
| Centerline Length | 19.5 |
| Centerline Length | 495 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 0 |
| 9940 | Yes |
| 9942 | Outlet |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Body Type | # Doors | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | Mini | Cooper Countryman | Automatic | 1.6L | L4 | GAS | Upper - Connector To Engine | Molded Coolant Hose | ||
| 2015 | Mini | Cooper | 4 Door | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | |
| 2014 | Mini | Cooper | Wagon | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | |
| 2014 | Mini | Cooper Countryman | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | ||
| 2013 | Mini | Cooper | Wagon | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | |
| 2013 | Mini | Cooper Countryman | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | ||
| 2012 | Mini | Cooper | Wagon | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | |
| 2012 | Mini | Cooper Countryman | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | ||
| 2011 | Mini | Cooper | Wagon | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | Molded Coolant Hose | |
| 2011 | Mini | Cooper Countryman | Manual | 1.6L | L4 | GAS | Upper - Pipe To Thermostat | 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.