Okay, on my '85 GSL-SE's front mounted oil cooler (or FMOC I guess you guys would call it), what size would the thread fittings be? I'm not sure if they are 16mm and 18mm, from looking at Mazdatrix's website for their -AN fittings for their stainless steel lines, or not.

In simpler terms, say I wanted to go to a hardware store for some pipe thread fittings (not saying I would but to help guide you all on what I'm getting at to avoid confusion), what would I look for? i.e.: 1/4 NPT, 1/2 NPT, etc (altho I didn't see any metric NPT size......if there is any).

I've already done my searching around, and no such luck really finding, so I'm asking you all. Maybe one of you might know the answer.

 

I'm pretty sure they are 18mm, any good hydraulic shop will have them. Find a place that sells Parker brand fittings. They have metric to AN adapters or you can take your old hoses and have new hose put in between your old fittings.

 

Front cover is 16mm rear iorn is 18mm. My queston is what size are the fittings in the oil cooler itself so I can make some damn lines!

 

fittings at cooler are the same size as the fitting on the short hose at the front cover. Just replaced mine, pretty cheap from mazda. $25 canadian for all three.

Part number: 993841200