HomeBelts and Cooling > Hoses and PipesGates 51615 Radiator Coolant Hose - Radiator To Water Pump
Part #: 51615

Gates 51615 Radiator Coolant Hose - Radiator To Water Pump

Molded Coolant Hose, Radiator To Water Pump
⚙️ 15 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Molded Coolant Hose, Radiator To Water Pump
🚗Fitment: BMW, 550i, 650Ci, and 650i
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Gates Molded Coolant Hose 51615

The Gates Molded Coolant Hose 51615 is engineered for reliable cooling system performance in select BMW models. Designed with durable EPDM, plastic, and steel materials, this radiator coolant hose ensures consistent coolant flow and system integrity for BMW 550i, 650Ci, and 650i vehicles.

  • Constructed from EPDM, plastic, and steel for durability and heat resistance
  • Centerline length of 12.5 inches (318 mm) for precise fitment
  • Two female quick connectors for secure and modular hose connections
  • Molded design enhances sealing and reduces leak potential
  • Compatible with BMW 550i, 650Ci, and 650i models
  • Part number 51615 for accurate identification and replacement

About the Molded Coolant Hose Product Line

The Molded Coolant Hose line by Gates focuses on precision-engineered hoses that feature molded construction and modular components. This design approach improves hose durability and fitment accuracy, reducing the risk of leaks and coolant loss. The inclusion of two female quick connectors allows for easier installation and maintenance, making the Molded Coolant Hose line suitable for modern cooling systems requiring reliable and service-friendly components.

Detailed Product Description

The Gates Molded Coolant Hose 51615 is a radiator coolant hose specifically designed for BMW 550i, 650Ci, and 650i models. It features a centerline length of 12.5 inches (318 mm) and consistent inside diameters of 0.61 inches (15 mm) on both ends, ensuring a precise and secure fit. The hose is constructed from a combination of EPDM rubber, plastic, and steel, materials chosen for their resistance to heat, pressure, and chemical exposure common in automotive cooling systems. The molded design enhances the hose’s structural integrity and sealing capabilities, while the two female quick connectors provide modularity and ease of connection without the need for additional clamps or fittings.

Common Applications and Problem Solving

  • Replacement of worn or cracked radiator coolant hoses in BMW 550i, 650Ci, and 650i
  • Addressing coolant leaks caused by hose degradation or poor sealing
  • Restoring proper coolant flow to prevent engine overheating
  • Upgrading to a molded hose for improved durability and fitment accuracy
  • Facilitating maintenance with modular quick connect fittings

Installation Notes and Tips

Ensure the cooling system is fully depressurized and cooled before removing the old hose. Verify the part number 51615 matches the original hose for your BMW 550i, 650Ci, or 650i. The molded design and quick connectors simplify installation, but inspect connectors for proper seating to avoid leaks. Use appropriate tools to avoid damaging the quick connectors during installation. After installation, refill and bleed the cooling system according to manufacturer specifications.

Quality Assurance and Warranty

Gates Molded Coolant Hose 51615 is manufactured to meet OEM standards for fit, form, and function. The use of EPDM, plastic, and steel materials ensures resistance to heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Gates products generally adhere to strict quality control processes to ensure reliability and durability in service.

BrandGates
Part Number51615
PositionMolded Coolant Hose, Radiator To Water Pump
MaterialEpdm, plastic, steel
End 1 Inside Diameter.61
End 1 Inside Diameter15
End 2 Inside Diameter.61
End 2 Inside Diameter15
Contains SpringNo
Centerline Length12.5
Centerline Length318
Branch Quantity0
9839Yes
98452
Modular Components2 female quick connectors
Modular HoseYes
MoldedYes
Number of Quick Connect Fittings2

This part fits 15 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2010BMW550i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2010BMW650Ci4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2010BMW650i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2009BMW550i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2009BMW650Ci4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2009BMW650i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2008BMW550i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2008BMW650Ci4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2008BMW650i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2007BMW550i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2007BMW650Ci4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2007BMW650i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2006BMW550i4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2006BMW650Ci4.8LV8GASRadiator To Water PumpMolded Coolant Hose
2006BMW650i4.8LV8GASRadiator To Water PumpMolded 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:

1712754066723023M51615CHE0503R19459

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.