Engine oil pressure switch (44)

Location: 

T8 

by the front edge of the oil filter

Fig 1: Identifying Engine Oil Pressure Switch (44) - T8

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Simtec 

under the generator

Fig 2: Identifying Engine Oil Pressure Switch (44) - Simtec

Courtesy of SAAB-SCANIA OF AMERICA, INC.