What is the most popular heavy machine / truck / tractor ac compressor in South America ?

Q: What type vehicle ac compressor is the most popular in South America / Europe?    

A: During summer season, the Agricultural machine / heavy truck / bus ( Kenworth , Caterpillar , Case, New Holland, Hitachi, Kobelco Volvo and so on ) are the most popular in the market, such as these vehicle ac compressor: