The black radiator hose comes out of the upper left of the radiator. Follow it to where it connects to the engine block at the top center of the engine. It is just to the left of the ignition coil. That is the thermostat housing. Remove the bolts holding the housing, and the thermostat will be there.
Follow the upper radiator hose to its end. The thermostat is located right about there.
From the screw tabs across is just under 6.5". I bought 5.25" and the fit (1992 plymouth acclaim) except the screw tabs are too short
It is under the housing where the upper radiator hose hooks to the engine.
It is inside the fuel tank.
CarsDirect says P185/70SR14
4.5 quarts
My 1991 Plymouth Acclaim manual says mine is R12, but I can't say for the '92 It was built with R12, should be retrofitted to R134a.
It should have top posts.
The oil filter is on the lower front of the engine.
Plymouth Acclaim was created in 1989.
Under the flux capacitor
No crank sensor. Only has the distributor pick up plate.