I have a Civic 1998 DX and the car does not has the AC system, will a 1995 civic AC fit on my model ?
they sell complete aftermarket kits...look some up..
To elaborate further, you would require more than just the AC compressor and expansion tank, plumbing, etc. You would need to check your 98' to see if it has a fuse and relay spot as an option and all the wiring and controls which an aftermarket kit should supply like the above comment added.
Search Honda Civic Questions
Honda Civic Experts