Some Citroen Xsara, Xsara Picasso are built with
the same air conditioning compressor. The Original Equipment Manufacturer
Numbers (OEM numbers) are Citroen 6453EN, 6453JH, 9635587780.
The air-conditioning system of these
vehicles was assembled with a Sanden 6V12 compressor. Manufacturer numbers: Sanden 1421.
These ac units seem to be interchangeable.