BMW N55 335i 11537585023 Water hose fit replacement Billet 6061
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BMW N55 335i 11537585023 Water hose fit replacement Billet 6061

Price: $64.90
  • Item #: K027-0005-2
  • Manufacturer: MAMBA
  • Condition: New
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Product Information



Item Name

MAMBA BMW N55 335i X5 X6 E70 E71 N55 11537585023 OEM water hose fitting replacement Aluminum 6061



Brand New in Box.


This products is an OEM replacement for the plastic fitting on BMW P/N 11537585023. It fits the N55 / N55B30 3.0-litre motors. This BMW PN consists of a 25mm (1.0") hose and a plastic fitting. This hose runs from the coolant thermostat housing to the front of the head. The plastic fitting on this hose is a known weak spot in the coolant system as it commonly cracks and leaks. The ideal solution to the problem is to replace the fitting with one that will never wear-out, crack or leak. This fitting is a direct replacement for the stock plastic fitting with no modification to any part of the system necessary. Simply remove the end of the hose from the plastic fitting and then the fitting from the head (hose does not need to be removed from the thermostat housing to do this). Then install the replacement aluminum fitting to the head and slide the hose and hose clamp over the fitting. Fitting is machined from billet aluminum 6061 T6511.


N55B30M0 (225 kW)

·    2009–2017 F10/F11/F07 535i

·    2010-2013 E90/E91/E92/E93 335i

·    2010-2013 E82/E88 135i

·    2010–2017 F25 X3 xDrive35i

·    2011-2013 E70 X5 xDrive 35i

·    2011–2015 F30/F31 335i

·    2011–2014 E71 X6 xDrive 35i

·    2012–2015 E84 X1 xDrive35i

·    2013–2016 F32/F33/F36 435i

·    2014–present F15 X5 xdrive 35i

·    2014–present F16 X6 xDrive35i

·    2014–present F26 X4 xDrive 35i

N55B30 (235 kW)

·    2011–present F06/F12/F13 640i

·    2012–2013 E82/E88 135is

·    2012–2015 F20/F21 M135i

·    2012–2015 F01 740i/Li

N55B30O0 (240 kW)

·    2013–2016 F22/F23 M235i

·    2015–2016 F20/F21 M135i LC


If you track or race your 335i then this is a highly advisable upgrade as this aluminum coolant fitting will not crack under high-temperature track conditions.


Hose fitting material : Forge billet aluminum 6061

O-Ring : EPDM

Clamp: SS301

Kit Includes

1 x Billet aluminum fitting

1 x EPDM O-ring

1 x Stainless steel hose clamp.

This listing does NOT include the hose.

Everything on first picture is included

Made By



One Year


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