I bought a water pump on ebay a long time ago and it turns out that wasnt the problem so I want to resell it. I forgot if it was good for all 2nd gens or just the 88. Can someone fill me in?

 

it sort of fits s5, but the electric OMP gets in the way. I got mine in, but I had to put the lower rad hose on first, and pinch the hose between the pump neck and the OMP.

normally, s4 to s4 and s5 to s5 as much as you can..

 

a water pump for a 88, will fit any 86-88 model including turbos

 

thanks!

 

and despite what Jono suggests, the S4 water pump really does not work well at all on a S5 model and will have considerably reduced efficency over what the proper water pump will.