Opel-Saab-03-PXV16-PV6

The predecessor company of SANDEN was called Sankyo Electric Company. It originally developed dynamo lighting sets for bicycles.

http://www.compressor-express.com/ac-compressor/saab/Opel-Saab-03-PXV16-PV6

Some Saab 9-3, Saab 9-5 are built with the same air conditioning compressor. The Original Equipment Manufacturer Numbers (OEM numbers) are Saab 13140505, 13191997, 24411249, R1580034.

The air-conditioning system of these vehicles was assembled with a Sanden PXV16 compressor. Manufacturer numbers: Sanden 8608, 8618, 8632.
These ac units seem to be interchangeable.