I was looking on mazdatrix, and I noticed the o ring kit for s4 t2 and s5 t2 were different. I was under the impression they would be the same. Whats the differnece?

 

Hmm, I'm not to sure about the Mazdatrix one.

At Atkins they have a 86-95 O-ring kit.
Turbo, NA, FD. All the same for what the kit includes I guess.

 

did you check the contents of each kit?

 

ALL the short block seals minus the front cover gasket are the same from '86-02. the long block gaskets are different for each series and turbo to n/a.

 

Theres only slight differences in o-ring kits. Like the OMP oring between s4 and s5.

Mazdatrix lists them by oem part number. If all you need are the water seals, and dowel pin o-rings by all means just get the cheapest gasket set , 10-S60A-N318 @ $175.xx