This four piece US Domestic and European engine oil pressure gauge adapter fitting kit from Equus includes 4 solid brass bushings to adapt from 1/8-27 NPTF female threads to male M10x1, M12x1.5, M14x1.5, and 1/4-18 NPT respectively. Product Features:Comes with sealing crush rings100% brass adaptersAdapts to most common European brand vehicles1/8- 27 NPT to M10 x 1, M12 x 1.5, M14 x 1.5, 1/4Includes installation instructions in English, French, and Spanish.