Apparently there are quite a few low quality parts out there, a friend searching for a stat for his 3L Capri tried two different "manufacturers" brands before being advised by someone who apparently travels the world sourcing classic car parts that those marketed under the brand name GATES were good quality, he bought one, which solved his issue relative to gasket thickness and fitting, whether it will operate correctly ..? Time will tell as the engine is not back in the Capri yet..