What headlights will fit on my 88 CRX Si?
Will only the 88-89 CRX headlights fit or will the 90-91 fit too?
Are any other 4th gen headlights compatible?
because I have one burned out and an brand new OEM is expensive.

 

I think all 88-91 headlights were the same. I believe it was the actual fender that made how the corner lights attach different. But I could be wrong. You most likely could just switch out the headlight bracket if your headlight was broken and that would probably work so the corner light bolted up right.

 

88-91 headlights on any kind of civic are compatible.... just make sure when you buy one the color matches up... some are tinted yellow from water getting in them

 

the 88-91 lights are the same its just the mounting brackets that are different due to the way the cornerlights are mounted