If your wanting to do a 2.4 engine swap into your 95-05 Neon, in addition to the side mount adapter you’ll need to complete the swap, you’ll need a alternator bracket set.
The reason for this, is because the 2.0 alternator support brackets have different bolt spacing than the 2.4 block. So, you need to use these 2.4 brackets to secure your 2.0 Neon alternator to the 2.4 block.
These are brand new, lower support bracket and upper adjustment bracket to mount your alternator. Both are OEM Mopar parts.