Hi everyone, can someone please clarify something for me. It is my understanding that the 1990-1992 xj40’s had 90 AMP alternators with a 4 groove pulley and the 1993- 1994 xj40’s had 115 AMP alternators with 5 groove pulley, is this correct ?
The reason i ask is I have a 1990 xj40 4.0 litre Sovereign. The alternator I have removed off the vehicle is a Bosch 115 amp alternator which has the part number DAC 5094.
I am trying to figure out if this vehicle originally came out with the 90 amp alternator or someone has upgraded it or 115 amp unit.
This xj40 has 4 groove pulleys on both the alternator and water pump as well as the harmonic balancer.
There does not appear to be a large alternator suppressor (part number # DBC12319) fitted to the vehicle, only a load dump module. I was under the impression all 115 amp alternators were supposed to have the large red bull can size suppressor fitted.
I am located in Australia so the vehicle is a RHD vehicle. I can give you the vin and engine number if thats of assistance to you.
The reason I am confused is a Jaguar spare parts specialist told me that it must be a 90 amp alternator because it’s a 1990 model. I specifically told him it was a 1990 Sovereign model and he still said it definitely came out with a 90 amp alternator.
Thanks for your time and any assistance you may provide