You should listen to me. No, seriously, listen to me.
Join Date: Oct 2008
Location: Santa Barbara
Motorcycle: Blue 2006 GSX-R1000
Re: k5 oil cooler, is the same as a k7?
Are you replacing one and, if so, could you compare the two and report back here? I was guessing that the width was different, maybe being tapered, but inspection of pics on ebay indicates that they're the same. My next guess would be the angle of the hose bosses. Then the depth. It's somehow different, but not by much. My K6 is stamped Toyo Radiator 32306 but their website isn't very helpful.