BMW F30/F31/F34 3 Series Upper Radiator Coolant Hose – OEM Replacement Cooling System Hose, Replaces OE 17127596837 - Fits N20 Models

Restore proper coolant flow and cooling system reliability with this OEM replacement Upper Radiator Coolant Hose for select BMW F-Chassis models equipped with the N20 engine. Designed to replace OE part number 17127596837, this hose plays an important role in routing coolant through the upper portion of the cooling system so the engine can maintain proper operating temperature under daily driving, spirited driving, and changing weather conditions.

As these vehicles age, factory coolant hoses can begin to harden, swell, weaken, or crack from repeated heat cycles and constant coolant exposure. Once that happens, even a small weak point can quickly lead to coolant leaks, pressure loss, and overheating issues. Replacing aging radiator hoses before they fail is one of the smartest preventative maintenance steps you can take on an N20-powered BMW.

This replacement hose is designed to match the original fit and routing of the factory upper radiator line, making it a dependable solution whether you are fixing a coolant leak, refreshing the cooling system, or replacing old original hoses before they become a bigger problem. It helps restore confidence in the cooling system while keeping your BMW running at the proper temperature.

Key Features:

• Direct OEM Replacement: Designed to replace the factory upper radiator coolant hose using OE part number 17127596837.
• Restores Proper Coolant Flow: Helps maintain stable coolant circulation and proper engine operating temperature.
• Ideal for Cooling System Refreshes: A smart replacement when servicing aging hoses, radiator components, thermostat work, 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 issues.
• OEM-Style Fitment: Built to match the original hose routing and installation layout on compatible BMW applications.
• Reliable Preventative Maintenance Upgrade: A simple but important replacement part for preserving long-term cooling system reliability.

FITMENT:

• BMW 1 Series – F20 5 Door Hatch (07/2010–02/2015)
• BMW 1 Series – F20 LCI 5 Door Hatch (05/2014–06/2016)
• BMW 1 Series – F21 3 Door Hatch (07/2010–02/2015)
• BMW 1 Series – F21 LCI 3 Door Hatch (09/2014–06/2016)
• BMW 2 Series – F22 Coupe (10/2012–06/2016)
• BMW 2 Series – F23 Convertible (04/2014–06/2016)
• BMW 3 Series – F30 Sedan (02/2011–07/2015)
• BMW 3 Series – F30 LCI Sedan (10/2014–10/2018)
• BMW 3 Series – F31 Touring (07/2011–06/2015)
• BMW 3 Series – F31 LCI Touring (12/2014–06/2016)
• BMW 3 Series – F34 GT (07/2012–06/2016)
• BMW 4 Series – F32 Coupe (11/2012–01/2017)
• BMW 4 Series – F33 Convertible (03/2013–02/2017)
• BMW 4 Series – F36 Gran Coupe (07/2013–12/2016)

Compatible with select BMW N20 applications using OE upper radiator coolant hose 17127596837. 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:
17127596837

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