I believe it can bt fitted in all W140 model. I have my suspension(yes, suspension, front/rear)components changed in 1994 UNDER warranty because MB said '92s has design flaw!!?? If the whole suspension(maybe this is why I never know '92s' steering has a shimmy feel) from newer W140 can be fit in my car, it should have no problem fit water pump in it. However, as someone has mention already, newer isn't always better.
P.S. With the new suspension from newer W140s, my car seems to ride a bit lower than 1992s. About 1 1/2 - 2 cm lower....
[This message has been edited by akry (edited 07-22-1999).]