BMW F10/F11/F18 5 Series Coolant Reservoir / Water Pipe Hose with Metal Fittings – Fortified Durability, OEM Replacement Cooling Hose, Replaces OE Part No. 17127619684 - Fits 520i, 525i & 530i Models

Restore proper coolant flow and cooling system reliability with this OEM replacement cooler tank / water pipe hose for the BMW F10, F11, and F18 5 Series. Designed to replace OE part number 17127619684, this hose plays an important role in routing coolant through the expansion tank and cooling system so the engine can maintain proper operating temperature under normal driving and heavier load conditions.

As these vehicles age, factory coolant hoses can begin to harden, weaken, swell, or crack from repeated heat cycles and long-term coolant exposure. Once that happens, even a small weak point can turn into a coolant leak, pressure loss, or overheating problem. Replacing aging hoses before they fail is one of the smartest preventative maintenance steps you can take on a BMW cooling system.

This replacement hose is designed to match the original fit and routing of the factory unit, while also featuring a durable metal fitting for added strength in a critical connection area. Compared to weaker all-plastic style connection points that can become brittle over time, the reinforced metal fitting is built to better withstand heat, pressure, and cracking, helping improve long-term reliability in the cooling system.

Whether you are fixing a leak, refreshing the cooling system, or replacing worn original hoses as preventative maintenance, this hose helps restore confidence in the cooling system while keeping the engine bay functioning the way it should.

Key Features:

• Direct OEM Replacement: Designed to replace the factory cooler tank / water pipe hose using OE part number 17127619684.
• Durable Metal Fitting: Reinforced connection point helps provide added strength and better long-term durability compared to weaker failure-prone plastic-style ends.
• Built to Better Resist Cracking: Designed to withstand heat cycles, coolant pressure, and aging more effectively in a critical area of the hose assembly.
• Restores Proper Coolant Flow: Helps maintain correct coolant circulation through the expansion tank and cooling system.
• Ideal for Cooling System Refreshes: A smart replacement when servicing aging hoses, coolant tank components, or the full cooling system.
• Helps Prevent Leaks and Overheating: Replacing worn hoses can help reduce the risk of coolant loss and temperature-related engine problems.
• OEM-Style Fitment: Built to match the original hose routing and installation layout on compatible BMW applications.

FITMENT:

• BMW 5 Series – F10 Sedan
• BMW 5 Series – F11 Touring
• BMW 5 Series – F18 Long Wheelbase Sedan

Compatible with BMW F10, F11, and F18 5 Series applications using OE cooler tank / water pipe hose 17127619684, including common fitments such as 520i, 525i, and 530i models. If you’re unsure whether this hose fits your specific vehicle, please contact us with your VIN and we’ll be happy to verify compatibility before you order.

REPLACES OE PART NUMBER:
17127619684

Please refer to the “Fitment” section in the product description for compatibility details.