Under the van, on the right side"frame".
It is located in the air intake tube from the air filter to the throttle plate.
It is on the inboard top of the fuel tank.It is on the inboard top of the fuel tank.
No the bell housings won't match each other.
The 2000 Plymouth Voyager 2.4 liter engine radiator cooling fan relay switch can be found in the fuse box. The relay switch will be in the third column, fourth from the top.
Under the van, along the "frame rail", about half way front to back.
Less cheeky answer: 4.5 quarts with an oil filter change, 4.0 quarts without (pg. 186 of 1995 Plymouth Voyager Manual). Try not to overfill; that could aerate your oil and make you lose oil pressure.
Not easily, they are not really compatible.
on the alternator