BMW E30 A/C Solutions R134a Safety Pressure Switch (Black) (64538390971)

BMW E30 A/C Solutions R134a Safety Pressure Switch (Black) (64538390971)
Description
The high-pressure cut off switch is used to disengage the A/C compressor when the system reaches maximum pressure. Unlike your original switch, this is specifically designed for R134a as the high-pressure side operates at a higher PSI than that of R12. 
What’s included?
R134a safety high/low-pressure cut off switch
Fitment notes:
This switch is compatible with the late model E30 filter drier.
For use with the following models: BMW E30 (all)
Cross reference part numbers:
64538390971, 64531386813, SW11509C, 1711418, 36571