The crank pulley on my 6 cyl 3.0 Senator has 3 grooves. The inner one is the alt/fan and is the same as the 1.9's, the middle goes to the AC comp via an idler pulley and the third goes to the power steering and AC compressor . Those pulleys should be available in the UK or Germany. I didn't look close to see if it was one piece or not.
The clutch on the AC compressor just went udders up in my Senny and I had to remove it and run a new belt to the power steering. runs much quieter now.
