Aircon pump

Is there a difference between aircon pumps on a p38? ie will a 2.5 diesel go on a 4.6 perol?

many thanks
Matt

The air con pump is not quite the same, different casing, but the inners are the same so if you can get the inners just swap the casings over ?

I was talking to a guy about this in the USA he makes recon ones, that are a LOT cheaper that what you get here, and thats what he told me, he was doing them for about $140 (£70) + Post