Genuine BMW F Series (B48/B58) Lower Radiator Coolant Hose Pipe – Remote/Auxiliary Radiator to Engine – OEM 17128633483 – Fits F20 F21 F22 F23 F30 F32 F33 F36 – M140i M240i 340i 430i 440i xDrive – Bottom Water Hose/Radiator Outlet/Return Line

BMW Original Lower Water Hose for Remote Radiator — Part No. 17128633483

Keep your straight six running cool with the factory lower water hose that links the auxiliary radiator to the engine on BMW F Series platforms. This authentic hose assembly restores correct coolant circulation, cures leaks and split hoses, and keeps temps stable on tuned and daily-driven cars alike. It is a direct replacement with OE-spec quick release ends and the exact routing you expect from a BMW part.

We have installed this hose on our own demonstrators and many customer vehicles with outstanding results. Fitment is spot on, the connections lock in securely, and cooling performance is exactly as it should be. Ideal as preventative maintenance during a cooling system refresh or as a fix for swelling, ageing or damaged bottom hoses.

Why buy this hose

• Original BMW lower coolant line for remote or auxiliary radiator systems
• Plug and play fit with factory quick connectors for a clean, leak-free install
• Restores cooling efficiency and helps prevent overheating under spirited use
• Built from high quality materials to handle heat, pressure and modern coolant
• Perfect fix for coolant loss, soft hoses, cracking or poor hose retention
• Trusted in-house and by our customers for reliability on road and track

Vehicle applications

Compatibility as supplied by BMW. We verify fitment before dispatch.

• 1 Series
  • F20 LCI 09/2015 to 06/2019 — M140i and M140i xDrive
  • F21 LCI 09/2015 to 06/2019 — M140i and M140i xDrive
• 2 Series
  • F22 10/2012 to 06/2016 — M240i and M240i xDrive
  • F22 LCI 11/2016 to 11/2019 — M240i and M240i xDrive
  • F23 03/2014 to 06/2016 — M240i and M240i xDrive
  • F23 LCI 03/2017 to 11/2019 — M240i and M240i xDrive
• 3 Series
  • F30 LCI 10/2014 to 10/2018 — 340i and 340i xDrive
• 4 Series
  • F32 09/2015 to 02/2017 — 430i, 430i xDrive, 440i and 440i xDrive
  • F32 LCI 07/2016 to 12/2019 — 430i, 430i xDrive, 440i and 440i xDrive
  • F33 09/2015 to 02/2017 — 430i, 430i xDrive, 440i and 440i xDrive
  • F33 LCI 08/2016 to 12/2019 — 430i and 430i xDrive
  • F36 Gran Coupé 10/2015 to 02/2017 — 430i and 430i xDrive
  • F36 Gran Coupé LCI 07/2016 to 12/2019 — 430i, 430i xDrive, 440i and 440i xDrive

Part number

17128633483

Fitment check

Add your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility before we ship.

Installation

Professional fitting available at MJ Modifications in Warwickshire. For a quote, email info@mjmodifications.co.uk.

Manufacturer

Manufactured by BMW. Supplied as an original part and eligible for BMW-backed warranty when purchased against a valid VIN on compatible vehicles.

Search terms customers use

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