Probably not. The body style was changed in 1999, and even though they look almost the same, the dimensions for many things are different.
Go to any parts supplier.
How do you change the thermostat in 1999 Mercury Villager
Yes.
According to the 1999 Mercury Villager Owner Guide : ( 20.0 US. gallons )
In the engine.
No, no room.
134-A
There is a tool made for that specific problem. Check with your local parts house.
In the fuel tank.
ABS was an option. Not all have it.
4.5 quart
There are two.