This part is listed by BMW as BMW part number 11537598234 (11 53 7 598 234) and is described as the Engine-to-Thermostat hose for F22 M235i, F30 335i, F32 435i, and 2016-2018 F87 M2 (N55). A new o-ring is included. This is the hose that exits the front of the engine and returns coolant to the thermostat. It's very common for a leak to develop at the plastic flange at the engine and cause a coolant leak (aka Mickey Mouse hose). This is a new Genuine BMW hose with the plastic flange. An aluminum flange is available on its own (click here
) and an aftermarket hose with the aluminum flange is also available (click here
This is a Genuine BMW N55 thermostat hose with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments: 2 Series
F22 / F23 (2014+) > M235i
F22 / F23 (2014+) > M235i xDrive
F22 / F23 (2014+) > M235i-Racing
F22 / F23 (2014+) > M240i-Racing2 Series
F87 (2016+) > M2 N55 (2016-2018)3 Series
F30 / F31 / F34 (2012+) > 335i
F30 / F31 / F34 (2012+) > 335i xDrive
F30 / F31 / F34 (2012+) > Hybrid 34 Series
F32 / F33 / F36 (2014+) > 435i
F32 / F33 / F36 (2014+) > 435i xDrive