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Gates 51703 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 51703
The Gates Molded Coolant Hose 51703 is engineered for reliable cooling system performance in Land Rover Range Rover vehicles. Designed with durable EPDM, plastic, and steel materials, this radiator coolant hose ensures efficient coolant flow and system integrity.
- Constructed from EPDM, plastic, and steel for durability and heat resistance
- Molded design with three branches and two female quick connectors for precise fitment
- Centerline length of 381 mm (15 inches) for accurate installation
- Inside diameters of 38 mm (1.5 inches) and 15 mm (0.6 inches) at various ends
- Compatible with Land Rover Range Rover cooling systems requiring part number 51703
About the Molded Coolant Hose Product Line
The Molded Coolant Hose line by Gates focuses on pre-formed hoses designed to match specific vehicle cooling system layouts. This product line offers modular components with multiple branches and quick connect fittings, simplifying installation and ensuring a secure, leak-free connection. The 51703 hose exemplifies this approach with its three-branch modular design and integrated quick connectors, tailored for Land Rover Range Rover applications.
Detailed Product Description
The Gates Molded Coolant Hose 51703 features a molded construction combining EPDM rubber, plastic, and steel reinforcements to withstand high temperatures and pressure within the radiator cooling system. It includes three branches and two female quick connectors, facilitating a modular setup that fits precisely in the Land Rover Range Rover cooling circuit. The hose’s centerline length measures 381 mm (15 inches), with consistent inside diameters of 38 mm (1.5 inches) on multiple ends and smaller 15 mm (0.6 inches) diameters on additional outlets. This design supports efficient coolant flow and system reliability without the need for springs or additional fittings.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in Land Rover Range Rover models
- Resolving coolant leaks caused by hose degradation or improper fit
- Addressing overheating issues related to compromised coolant flow
- Upgrading to a molded hose for improved fit and reduced installation errors
- Maintaining cooling system integrity with OEM-quality components
Installation Notes and Tips
Ensure the cooling system is fully depressurized and cooled before removing the old hose. The molded design and quick connect fittings of the Gates 51703 hose simplify alignment and attachment. Verify all connections are secure and free of debris to prevent leaks. Use appropriate clamps if required by the vehicle’s service manual. Inspect surrounding components for wear during installation.
Quality Assurance and Warranty
Gates manufactures the Molded Coolant Hose 51703 to meet stringent quality standards, using materials selected for heat and pressure resistance. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Using this hose helps maintain the reliability of the Land Rover Range Rover cooling system.
| Brand | Gates |
| Part Number | 51703 |
| Position | Molded Coolant Hose, Upper |
| Material | Epdm, plastic, steel |
| End 1 Inside Diameter | 1.5 |
| End 1 Inside Diameter | 38 |
| End 2 Inside Diameter | 1.5 |
| End 2 Inside Diameter | 38 |
| Contains Spring | No |
| Centerline Length | 15 |
| Centerline Length | 38 |
| Centerline Length | 381 |
| End 3 Inside Diameter | 1.5 |
| End 4 Inside Diameter | 1.5 |
| End 4 Inside Diameter | 38 |
| Branch Quantity | 3 |
| 9839 | Yes |
| 9845 | 2 |
| Inside Diameter 5 (in) | .6 |
| Inside Diameter 5 (mm) | 15 |
| Inside Diameter 6 (in) | .6 |
| Inside Diameter 6 (mm) | 15 |
| Modular Components | 3 branches, 2 female quick connectors, outlet |
| Modular Hose | Yes |
| Molded | Yes |
| Number of Quick Connect Fittings | 2 |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2009 | Land Rover | Range Rover | 4.2L | V8 | GAS | Upper | Molded Coolant Hose |
| 2008 | Land Rover | Range Rover | 4.2L | V8 | GAS | Upper | Molded Coolant Hose |
| 2007 | Land Rover | Range Rover | 4.2L | V8 | GAS | Upper | Molded Coolant Hose |
| 2006 | Land Rover | Range Rover | 4.2L | 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.