This three piece mechanical temperature gauge adapter fitting kit for European engines from Equus includes a solid brass bushing to adapt from 5/8-18 UNF female threads to M14x1.5, M16x1.5, and M18x1.5 respectively. Product Features:Contains three adapters and one crush ring100% brass adaptersAdapts from 5/8-18 UNF to M14x1.5 or M16x1.5 or M18x1.5Simplifies installationIncludes installation instructions in English, French, and Spanish.