The transfer case is found on all-wheel-drive vehicles and is responsible for the front to rear distribution of power. Proper service and fluid changes are required to avoid costly failure. 

This sealing sleeve is an internal transmission component for your BMW. We have all of the transmission components to make your BMW shift like a new car again.
If your ZF automatic is having solenoid control problems you can replace the troubled solenoids individually and save the expense of replacing an entire valve body
The mechatronics unit is the electronic valve body in modern automatic transmissions. Failure of this component may result in a variety of problems, including improper shifting, failure to shift, or complete transmission failure.
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Restore your xDrive All Wheel Drive system with this remanufactured transfer case from S-Tec. Transfer cases are an important part of the xDrive system, transfering power from the transmission to the front differential and wheels. This remanufactured unit has been completely disassembled, rebuilt with OE-quality components, then reassembled and tested for proper functionality. No core charge included.
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The mechatronics unit is the electronic valve body in the automatic transmissions. Failure of this component may result in a variety of problems, including improper shifting, failure to shift, or complete transmission failure. Priced w/ Core
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