in a large car spares place the only stats i could get were smaller in overall diameter, is it definitly a 5 turbo stat? 82? in the end i replaced mine with a brand new OE williams one but it still runs hot all the time, and because i replaced the rad fanm switch the fan is coming on all the time, i tried a 82 stat that was a few mm smaller and it didt sit tight and the water got round the edge and mangled the gasket.