A malfunctioning or lazy thermostat can lead to poor fuel trim efficiency, sluggish performance, and destructive overheating. This Rein thermostat assembly is engineered as a robust direct replacement for your worn factory unit, ensuring proper coolant regulation through the radiator under heavy loads.
When you are pushing your N55 BMW on the street or the track, thermal management is everything. A malfunctioning or lazy thermostat can lead to poor fuel trim efficiency, sluggish performance, and destructive overheating. This Rein thermostat assembly is engineered as a robust direct replacement for your worn factory unit, ensuring proper coolant regulation through the radiator under heavy loads. Built with high grade temperature stable materials to withstand the rigorous demands of hard driving, this assembly maintains absolute structural integrity against high pressures and repetitive thermal cycling. Keep your ultimate driving machine running cool, efficient, and ready for the next drive.
Features
Replaces brittle factory plastic housings prone to heat cycling stress cracks and catastrophic coolant loss.
High flow design ensures rapid, precise coolant cycling to keep engine temperatures perfectly regulated.
Manufactured to precise engineering standards to ensure flawless performance and reliable sealing on N55 platforms.
Comes complete with a fresh housing and integrated gasket to eliminate old, degraded sealing surfaces entirely.
Prop 65 Warning
Cross Reference
11537598865
CTA0087
Product Q&A
Lifetime Replacement
This product is not eligible for Lifetime Replacement
Fits These Cars
MAKE
MODEL
SUBMODEL
ENGINE
Special Fitment Notes
BMW
F15
X5 sDrive35i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F15
X5 xDrive35i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F16
X6 sDrive35i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F16
X6 xDrive35i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F22
M235i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F22
M235i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F23
M235i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F23
M235i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F30
335i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F30
335i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F30
ActiveHybrid 3
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F32
435i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F32
435i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F33
435i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F33
435i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F34
335i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F36
435i
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F36
435i xDrive
N55 3.0L
Use vehicle selector to confirm fitment
BMW
F87
M2
N55 3.0L
Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All
warranties, product application, fitment, and performance are the responsibility of Turner Motorsport.
For additional information see the terms of use.