Car is a 1999 2.2. GMPartsDirect only lists the lower engine mount for a 2.4, but it looks exactly the same. Will it fit?
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2000 Cavalier Coupe, 138k miles, 2.2 Auto, Silver (alive)
1999 Cavalier Sedan, 237k miles, 2.2 Auto, White (dead)
The lower engine strut (as GM calls it) looks the same on all 95-05 cars... but for whatever reason, there's two different part numbers... one for auto transmissions (22174912) and one for manual transmissions (22145447). I couldn't tell you what the difference is... they all look the same to me.
But if you're talking about the mounting bracket that bolts to the bottom of the engine/oil pan area... then those are different between the different motors.
...j
Just get an after market one. Probably cheaper.

-Chris
Auto Zone wants $50 for it.
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2000 Cavalier Coupe, 138k miles, 2.2 Auto, Silver (alive)
1999 Cavalier Sedan, 237k miles, 2.2 Auto, White (dead)