OE Quality
60-Day Returns

Gates 51513 Radiator Coolant Hose - Upper
Overview of Gates Molded Coolant Hose 51513
The Gates Molded Coolant Hose 51513 is designed specifically for BMW X3 and X4 models, providing reliable radiator coolant flow. Constructed from durable EPDM, plastic, and steel materials, this molded hose ensures consistent performance under various operating conditions.
- Material composition: EPDM, plastic, and steel for durability and heat resistance
- End 1 and End 2 inside diameter: 1.5 inches (38 mm)
- Centerline length: 14 inches (356 mm)
- Includes 4 quick connect fittings: 2 female and 2 male connectors
- Molded and modular hose design for precise fit and easy installation
- Contains no internal spring, ensuring smooth coolant flow
Detailed Product Description
The Gates Molded Coolant Hose 51513 is engineered to meet the specific cooling system requirements of BMW X3 and X4 vehicles. Its construction from EPDM rubber combined with plastic and steel components offers resistance to heat, pressure, and chemical exposure typical in automotive cooling systems. The hose features a molded design with a centerline length of 14 inches (356 mm), ensuring an exact fit within the engine bay. Both ends have an inside diameter of 1.5 inches (38 mm), compatible with the original equipment specifications. The modular design includes four quick connect fittings—two female and two male—allowing for secure and efficient connections without the need for additional clamps or hardware. This hose does not contain an internal spring, which helps maintain unobstructed coolant flow and reduces the risk of blockages.
About the Molded Coolant Hose Product Line
The Gates Molded Coolant Hose line focuses on precision-engineered hoses that are molded to exact OEM specifications. This product line emphasizes modular components and quick connect fittings to facilitate straightforward installation and reliable sealing. The Molded Coolant Hose 51513 exemplifies these features, providing a tailored solution for BMW cooling systems that require both durability and ease of maintenance.
Common Applications and Problem Solving
- Replacement of worn or cracked radiator coolant hoses in BMW X3 and X4 models
- Resolving coolant leaks caused by hose degradation or fitting failure
- Addressing overheating issues related to compromised coolant flow
- Upgrading to a molded hose for improved fit and reduced risk of hose collapse
- Ensuring secure connections with quick connect fittings to prevent coolant loss
Installation Notes and Tips
When installing the Gates Molded Coolant Hose 51513, ensure the vehicle is cool and the cooling system is depressurized. Verify that the hose’s inside diameters and length match the original part to maintain proper coolant flow. The modular quick connect fittings simplify attachment; however, inspect connectors for any debris or damage before installation. Proper seating of the fittings is critical to prevent leaks. Avoid twisting or stretching the hose during installation to maintain its molded shape and integrity.
Quality Assurance and Warranty
Gates manufactures the Molded Coolant Hose 51513 to meet stringent quality standards, using materials selected for heat and chemical resistance. While specific warranty details are not provided here, Gates products typically come with manufacturer-backed warranties covering defects in materials and workmanship. This hose is designed to provide reliable service life when installed according to OEM guidelines and maintained properly.
| Brand | Gates |
| Part Number | 51513 |
| 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 | 14 |
| Centerline Length | 356 |
| Branch Quantity | 0 |
| 9839 | Yes |
| 9845 | 4 |
| Modular Components | 2 female quick connectors, 2 male quick connectors |
| Modular Hose | Yes |
| Molded | Yes |
| Number of Quick Connect Fittings | 4 |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | BMW | X4 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2017 | BMW | X3 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2017 | BMW | X4 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2016 | BMW | X3 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2016 | BMW | X4 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2015 | BMW | X3 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2015 | BMW | X4 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2014 | BMW | X3 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2013 | BMW | X3 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2012 | BMW | X3 | 3.0L | L6 | GAS | Upper | Molded Coolant Hose |
| 2011 | BMW | X3 | 3.0L | L6 | 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.