Original BMW Coolant Hose, Junction to Heat Management Module, for BMW 3, 4, 5, 6, 7 Series, M240i, X3, and X4 (2016–2021)

This Original BMW coolant hose links the coolant junction to the heat management module on the B58 inline six in the 340i, 440i, 540i, 640i xDrive Gran Turismo, 740i, M240i, X3 M40i, and X4 M40i. BMW names it Hose, junction to heat management module, and gives it a weight of 101 g, which points to a small section of the cooling circuit rather than a long radiator hose. Production of this number began in July 2015. The hose is made in Hungary and is sold individually as one piece. Like every rubber coolant hose, it carries hot coolant under pressure between two components, and years of heat cycles slowly age the rubber.

Original BMW Parts carry a 24-month parts warranty.

BMW uses this single part number across a wide spread of chassis: the F22 and F23 2 Series, the F30, F31, and F34 GT 3 Series, the F32, F33, and F36 4 Series, the G30 and G31 5 Series, the G32 6 Series Gran Turismo, the G11 and G12 7 Series, and the G01 X3 and G02 X4. In every one of those cars the hose is tied to the B58 engine, so the engine code matters more than the body style when matching it. Coupe, convertible, sedan, wagon, Gran Coupe, and Gran Turismo versions with the B58 all take the same hose.

Technical Details

• Manufacturer: BMW, Original BMW part
• Part number: 11-53-8-606-278
• BMW part name: Hose, junction to heat management module
• Engine: B58 inline six
• Weight: 101 g (0.2 lb)
• Production start: July 2015
• Country of manufacture: Hungary
• Sold as: one hose
• Warranty: 24-month Original BMW parts warranty

Common Questions

What are the signs this hose needs replacing?
Cracking, leaking, swelling, or rubber that has gone dry, hard, and brittle all point to a hose that is due.

Is this the same hose on the 540i and 740i as on the 340i?
Yes. BMW uses this one part number on the B58-powered 340i, 540i, and 740i, along with the other models shown above.

Questions about the rest of your B58 cooling system are always welcome at PMB Performance.

Fitment & Compatibility

Use the fitment table below to confirm year, make, model, submodel, and any notes tied to your exact vehicle. Pay close attention to engine, chassis, position, and option-specific details before ordering. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.