The water pump on my 96 Grand Caravan SE 3.3L w/AC seized up yesterday, and busted the serpentine belt. I haven't taken the pump off yet, but have been checking for replacements. I notice on RockAuto's site that there are two physically different replacement pumps available: one, like the Bosch 96069 has a round casting of some sort on the mounting plate, while others have a plain, flat mounting plate. No explanation for the difference. Can anyone explain? Does it have something to do with whether or not the vehicle has A/C ? (mine does) because without A/C, it would use a shorter serpentine belt, and have a different water pump pulley. (my pulley is flat surfaced, and runs off the back side of the belt). On autopartsway, the Bosch pump is only $26, whereas one without the extra casting is $50. ????

 

Can't help with the type but I put a Bosch water pump on my 96 GC 3.8 ltr in 2002. 10 years and 110K miles later it's still doing the job. I've used Bosch pumps on other cars and have never had a problem.